fix(databricks): support cancelling SQL Lab queries on SEA connections

Databricks queries run through the Python Connector previously had no "stop query" support. The connector's only cancellation mechanism is Cursor.cancel(), which needs a full command identifier from the same backend session; the default Thrift backend's identifier includes a secret that's never exposed via any public/documented accessor, so it can't be reconstructed on the fresh cursor Superset uses to issue cancellation. The newer, opt-in SEA (Statement Execution API) backend uses a plain statement id instead, which can be captured and reused safely, so cancellation is implemented for that case only. Co-Authored-By: Claude <noreply@anthropic.com>
fix(mcp): reject unknown fields in nested chart-config models too (#42626 ) (#42732 )
2026-08-12 19:20:40 +00:00 · 2026-08-07 21:58:10 +00:00 · 2026-08-05 16:24:55 -07:00 · 2026-08-05 16:22:10 -07:00 · 2026-08-05 15:40:42 -07:00 · 2026-08-05 14:30:35 -07:00
4716 changed files with 426000 additions and 112214 deletions
@@ -105,9 +105,9 @@ Charts built from enriched datasets containing:
 pre-commit install

 # Quick validation (faster than --all-files)
-pre-commit run                    # Staged files only
+pre-commit run                   # Staged files only
 pre-commit run mypy              # Python type checking
-pre-commit run prettier          # Code formatting
+pre-commit run format            # Code formatting
 pre-commit run eslint            # Frontend linting
 ```

@@ -32,7 +32,6 @@
        "ms-python.vscode-pylance",
        "charliermarsh.ruff",
        "dbaeumer.vscode-eslint",
-        "esbenp.prettier-vscode"
      ]
    }
  }
@@ -59,7 +59,6 @@
        "ms-python.vscode-pylance",
        "charliermarsh.ruff",
        "dbaeumer.vscode-eslint",
-        "esbenp.prettier-vscode"
      ]
    }
  }
@@ -1,8 +1,6 @@
 # Notify all committers of DB migration changes, per SIP-59

-# https://github.com/apache/superset/issues/13351
-
-/superset/migrations/ @mistercrunch @michael-s-molina @betodealmeida @eschutho @sadpandajoe
+/superset/migrations/ @mistercrunch @michael-s-molina @betodealmeida @eschutho @sadpandajoe @rusackas

 # Notify some committers of changes in the components

@@ -12,28 +10,30 @@

 # Notify Helm Chart maintainers about changes in it

-/helm/superset/ @craig-rueda @dpgaspar @villebro @nytai @michael-s-molina @mistercrunch @rusackas @Antonio-RiveroMartnez
+/helm/superset/ @dpgaspar @villebro @nytai @michael-s-molina @mistercrunch @rusackas @Antonio-RiveroMartnez @hainenber

 # Notify E2E test maintainers of changes

-/superset-frontend/cypress-base/ @sadpandajoe @geido @eschutho @rusackas @betodealmeida @mistercrunch
+/superset-frontend/playwright/ @sadpandajoe @geido @eschutho @rusackas @mistercrunch
+/superset-frontend/cypress-base/ @sadpandajoe @geido @eschutho @rusackas @mistercrunch

 # Notify PMC members of changes to GitHub Actions

-/.github/ @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @craig-rueda @kgabryje @dpgaspar @sadpandajoe @hainenber
+/.github/ @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @kgabryje @sha174n @dpgaspar @sadpandajoe @hainenber

 # Notify PMC members of changes to CI-executed scripts (supply-chain risk:
 # scripts/ files run directly in CI workflows and can execute arbitrary code)

-/scripts/ @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @craig-rueda @kgabryje @dpgaspar @sadpandajoe @hainenber
+/scripts/ @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @kgabryje @dpgaspar @sha174n @sadpandajoe @hainenber

 # Notify PMC members of changes to required GitHub Actions

-/.asf.yaml @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @craig-rueda @kgabryje @dpgaspar @Antonio-RiveroMartnez
+/.asf.yaml @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @kgabryje @dpgaspar @sha174n @Antonio-RiveroMartnez

 # Maps are a finicky contribution process we care about

 **/*.geojson @villebro @rusackas
+**/*.ipynb @villebro @rusackas
 /superset-frontend/plugins/legacy-plugin-chart-country-map/ @villebro @rusackas

 # Notify translation maintainers of changes to translations
@@ -50,9 +50,8 @@ body:
    attributes:
      label: Python version
      options:
-        - "3.9"
-        - "3.10"
        - "3.11"
+        - "3.12"
        - Not applicable
        - I don't know
    validations:
@@ -32,8 +32,6 @@ runs:
        elif [ "$INPUT_PYTHON_VERSION" = "next" ]; then
          # currently disabled in GHA matrixes because of library compatibility issues
          RESOLVED_VERSION="3.12"
-        elif [ "$INPUT_PYTHON_VERSION" = "previous" ]; then
-          RESOLVED_VERSION="3.10"
        elif printf '%s' "$INPUT_PYTHON_VERSION" | grep -Eq '^[0-9]+\.[0-9]+(\.[0-9]+)?$'; then
          RESOLVED_VERSION="$INPUT_PYTHON_VERSION"
        else
@@ -10,12 +10,15 @@ updates:

  - package-ecosystem: "npm"
    ignore:
-      - dependency-name: "react-error-boundary"
-      - dependency-name: "@rjsf/*"
-      # remark-gfm v4+ requires react-markdown v9+, which needs React 18
-      - dependency-name: "remark-gfm"
-      - dependency-name: "react-markdown"
-      # TODO: remove below entries until React >= 19.0.0
+      # TODO: remove below entries once the application supports React >= 19.0.0
+      - dependency-name: "react"
+        update-types: ["version-update:semver-major"]
+      - dependency-name: "react-dom"
+        update-types: ["version-update:semver-major"]
+      - dependency-name: "@types/react"
+        update-types: ["version-update:semver-major"]
+      - dependency-name: "@types/react-dom"
+        update-types: ["version-update:semver-major"]
      - dependency-name: "react-icons"
      # JSDOM v30 doesn't play well with Jest v30
      # Source: https://jestjs.io/blog#known-issues
@@ -25,6 +28,11 @@ updates:
      # See https://github.com/apache/superset/pull/37384#issuecomment-3793991389
      # TODO: remove the plugin once Lodash usage has been migrated to a more readily tree-shakeable alternative
      - dependency-name: "@swc/plugin-transform-imports"
+      # deck.gl and luma.gl share strict peer constraints across the root and
+      # plugin workspaces, and root overrides pin their transitive versions.
+      # Upgrade both families together in a manually validated change.
+      - dependency-name: "@deck.gl/*"
+      - dependency-name: "@luma.gl/*"
      # `just-handlerbars-helpers` library in plugin-chart-handlebars requires `currencyformatter`` to be < 2
      - dependency-name: "currencyformatter.js"
        update-types: ["version-update:semver-major"]
@@ -45,12 +53,31 @@ updates:
    labels:
      - npm
      - dependabot
+    groups:
+      rjsf:
+        patterns:
+          - "@rjsf/*"
+      typescript-eslint:
+        patterns:
+          - "@typescript-eslint/*"
+          - "typescript-eslint"
+      babel:
+        patterns:
+          - "@babel/*"
+      storybook:
+        patterns:
+          - "@storybook/*"
+          - "storybook"
+          - "eslint-plugin-storybook"
+      ag-grid:
+        patterns:
+          - "ag-grid-react"
+          - "ag-grid-community"
    open-pull-requests-limit: 30
    versioning-strategy: increase
    cooldown:
      default-days: 7

-
  - package-ecosystem: "pip"
    directory: "/"
    open-pull-requests-limit: 10
@@ -78,10 +105,24 @@ updates:

  - package-ecosystem: "npm"
    directory: "/docs/"
-    ignore:
-      - dependency-name: "react-error-boundary"
    schedule:
      interval: "daily"
+    groups:
+      storybook:
+        patterns:
+          - "@storybook/*"
+          - "storybook"
+      docusaurus:
+        patterns:
+          - "@docusaurus/*"
+      docusaurus-openapi:
+        patterns:
+          - "docusaurus-plugin-openapi-docs"
+          - "docusaurus-theme-openapi-docs"
+      typescript-eslint:
+        patterns:
+          - "@typescript-eslint/*"
+          - "typescript-eslint"
    open-pull-requests-limit: 10
    versioning-strategy: increase
    cooldown:
@@ -109,296 +150,3 @@ updates:
    versioning-strategy: increase
    cooldown:
      default-days: 7
-
-  # Now for all of our plugins and packages!
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-calendar/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-partition/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-world-map/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/plugin-chart-pivot-table/"
-    ignore:
-      # TODO: remove below entries until React >= 19.0.0
-      - dependency-name: "react-icons"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-chord/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-horizon/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-rose/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-preset-chart-deckgl/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/plugin-chart-table/"
-    ignore:
-      # TODO: remove below entries until React >= 19.0.0
-      - dependency-name: "react-icons"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-country-map/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-map-box/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-preset-chart-nvd3/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/plugin-chart-word-cloud/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-paired-t-test/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/plugin-chart-echarts/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/plugin-chart-ag-grid-table/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/plugin-chart-cartodiagram/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/legacy-plugin-chart-parallel-coordinates/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/plugins/plugin-chart-handlebars/"
-    ignore:
-      # `just-handlerbars-helpers` library in plugin-chart-handlebars requires `currencyformatter`` to be < 2
-      - dependency-name: "currencyformatter.js"
-        update-types: ["version-update:semver-major"]
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/packages/generator-superset/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/packages/superset-ui-chart-controls/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/packages/superset-ui-core/"
-    ignore:
-      # not until React >= 18.0.0
-      - dependency-name: "react-markdown"
-      - dependency-name: "remark-gfm"
-      - dependency-name: "react-error-boundary"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
-
-  - package-ecosystem: "npm"
-    directory: "/superset-frontend/packages/superset-ui-switchboard/"
-    schedule:
-      interval: "daily"
-    labels:
-      - npm
-      - dependabot
-    open-pull-requests-limit: 5
-    versioning-strategy: increase
-    cooldown:
-      default-days: 7
@@ -256,7 +256,7 @@ cypress-run-all() {
  # UNCOMMENT the next few commands to monitor memory usage
  # monitor_memory &  # Start memory monitoring in the background
  # memoryMonitorPid=$!
-  python ../../scripts/cypress_run.py --parallelism $PARALLELISM --parallelism-id $PARALLEL_ID --group $PARALLEL_ID --retries 5 $USE_DASHBOARD_FLAG
+  python ../../scripts/cypress_run.py --retries 5 $USE_DASHBOARD_FLAG
  # kill $memoryMonitorPid
 }

@@ -23,7 +23,7 @@ on:

 jobs:
  bump-python-package:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    permissions:
      actions: write
      contents: write
@@ -31,7 +31,7 @@ jobs:
      checks: write
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: true
          ref: master
@@ -40,9 +40,9 @@ jobs:
        uses: ./.github/actions/setup-supersetbot/

      - name: Set up Python ${{ inputs.python-version }}
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
        with:
-          python-version: "3.10"
+          python-version: "3.11"

      - name: Install uv
        run: pip install uv
@@ -19,13 +19,13 @@ concurrency:
 jobs:
  check_db_migration_conflict:
    name: Check DB migration conflict
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check and notify
@@ -11,6 +11,7 @@ on:
 permissions:
  contents: read
  pull-requests: read
+  actions: read

 # cancel previous workflow jobs for PRs
 concurrency:
@@ -19,10 +20,14 @@ concurrency:

 jobs:
  check-python-deps:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
+
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -46,7 +51,7 @@ jobs:
      - name: Login to Docker Hub
        if: steps.check.outputs.python
        continue-on-error: true
-        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4.2.0
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
@@ -16,7 +16,7 @@ concurrency:

 jobs:
  changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 10
    permissions:
      contents: read
@@ -26,7 +26,7 @@ jobs:
      frontend: ${{ steps.check.outputs.frontend }}
    steps:
      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check for file changes
@@ -42,7 +42,7 @@ jobs:
    # analysis runners don't spin up. push/schedule runs always proceed:
    # the change-detector returns "all changed" for non-PR events.
    if: needs.changes.outputs.python == 'true' || needs.changes.outputs.frontend == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
    permissions:
      actions: read
@@ -58,13 +58,13 @@ jobs:

    steps:
      - name: Checkout repository
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

      # Initializes the CodeQL tools for scanning.
      - name: Initialize CodeQL
-        uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4
+        uses: github/codeql-action/init@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
        with:
          languages: ${{ matrix.language }}
          # If you wish to specify custom queries, you can do so here or in a config file.
@@ -75,6 +75,6 @@ jobs:
          # queries: security-extended,security-and-quality

      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4
+        uses: github/codeql-action/analyze@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
        with:
          category: "/language:${{matrix.language}}"
@@ -0,0 +1,63 @@
+name: Auto-approve Dependabot patch bumps
+
+# Posts an approving review on Dependabot PRs that only bump a patch
+# version, using the same trigger/guard convention already proven to work
+# for Dependabot PRs in sync-requirements-for-python-dep-upgrade-pr.yml
+# (plain `pull_request` gets a working, write-capable GITHUB_TOKEN here
+# because Dependabot pushes branches directly to this repo, not a fork).
+#
+# This does NOT auto-merge anything - repo-wide auto-merge is disabled
+# (Settings > General > Pull Requests > "Allow auto-merge" is off), and
+# flipping that is a separate, repo-wide decision this workflow doesn't
+# make on its own. Branch protection also still requires 1 approving
+# review; this just means that review can already exist by the time a
+# human looks at the PR, for the (large majority of) ecosystems whose
+# files aren't matched by any CODEOWNERS pattern. One ecosystem - the npm
+# bump under .github/actions - matches the /.github/ CODEOWNERS entry, so
+# those PRs will still need a human owner's approval regardless of this
+# workflow; it posts a review there too, but that alone won't satisfy the
+# code-owner requirement.
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+# Cancel a superseded run if Dependabot pushes to the same PR again before
+# the previous run finished (matches the pattern used elsewhere in
+# superset-docs-verify.yml).
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+permissions: {}
+
+jobs:
+  approve-patch-bump:
+    name: Approve patch-level bump
+    # Mirrors the guard in sync-requirements-for-python-dep-upgrade-pr.yml:
+    # limited to (1) PRs authored by Dependabot and (2) the upstream repo,
+    # since forked PRs don't get a write-capable token here anyway.
+    if: >
+      github.repository == 'apache/superset' &&
+      github.event.pull_request.user.login == 'dependabot[bot]' &&
+      github.event.pull_request.head.repo.fork == false
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write # to post the approving review via `gh pr review`
+    steps:
+      - name: Fetch Dependabot metadata
+        id: metadata
+        # This exact SHA is on ASF Infra's action allowlist
+        # (apache/infrastructure-actions approved_patterns.yml) as of this
+        # writing. Do not bump without opening an Infra ticket to allow
+        # the new SHA first!
+        uses: dependabot/fetch-metadata@25dd0e34f4fe68f24cc83900b1fe3fe149efef98 # v3.1.0
+
+      - name: Approve patch-level bump
+        if: steps.metadata.outputs.update-type == 'version-update:semver-patch'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          DEPENDENCY_NAMES: ${{ steps.metadata.outputs.dependency-names }}
+        run: |
+          gh pr review --approve "$PR_URL" \
+            --body "Auto-approved: patch-level bump only ($DEPENDENCY_NAMES)."
@@ -20,19 +20,19 @@ concurrency:

 permissions:
  contents: read
+  actions: read

 jobs:
  dependency-review:
    if: github.event_name == 'pull_request'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    steps:
      - name: "Checkout Repository"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: "Dependency Review"
        uses: actions/dependency-review-action@a1d282b36b6f3519aa1f3fc636f609c47dddb294 # v5.0.0
-        continue-on-error: true
        with:
          fail-on-severity: critical
          # compatible/incompatible licenses addressed here: https://www.apache.org/legal/resolved.html
@@ -48,10 +48,14 @@ jobs:
  python-dependency-liccheck:
    # NOTE: Configuration for liccheck lives in our pyproject.yml.
    # You cannot use a liccheck.ini file in this workflow.
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-slim
    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
+
      - name: "Checkout Repository"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

@@ -19,7 +19,7 @@ concurrency:

 jobs:
  changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 10
    permissions:
      contents: read
@@ -30,7 +30,7 @@ jobs:
      docker: ${{ steps.check.outputs.docker }}
    steps:
      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check for file changes
@@ -40,14 +40,14 @@ jobs:
          token: ${{ secrets.GITHUB_TOKEN }}

  setup_matrix:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    timeout-minutes: 5
    outputs:
      matrix_config: ${{ steps.set_matrix.outputs.matrix_config }}
    steps:
      - id: set_matrix
        run: |
-          MATRIX_CONFIG=$(if [ "${{ github.event_name }}" == "pull_request" ]; then echo '["dev", "lean"]'; else echo '["dev", "lean", "py310", "websocket", "dockerize", "py311", "py312"]'; fi)
+          MATRIX_CONFIG=$(if [ "${{ github.event_name }}" == "pull_request" ]; then echo '["dev", "lean"]'; else echo '["dev", "lean", "websocket", "dockerize", "py311", "py312"]'; fi)
          echo "matrix_config=${MATRIX_CONFIG}" >> $GITHUB_OUTPUT
          echo $GITHUB_OUTPUT

@@ -58,7 +58,7 @@ jobs:
      needs.changes.outputs.python == 'true' ||
      needs.changes.outputs.frontend == 'true' ||
      needs.changes.outputs.docker == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 60
    strategy:
      matrix:
@@ -71,7 +71,7 @@ jobs:

    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

@@ -123,13 +123,20 @@ jobs:
          # pull timeouts, 504/401 on push, ECONNRESET) that otherwise fail
          # the whole job. buildx reuses the buildkit layer cache from the
          # failed attempt, so a retry mostly re-does just the failed push.
+          #
+          # supersetbot's "dev"/"lean" presets pin their own --build-arg
+          # PY_VER, which lands ahead of --extra-flags on the assembled
+          # buildx command line; docker/buildx keeps the last value for a
+          # repeated --build-arg key, so appending PY_VER here overrides
+          # supersetbot's pin and keeps the build on the Dockerfile's own
+          # supported Python version.
          for attempt in 1 2 3; do
            if supersetbot docker \
              $PUSH_OR_LOAD \
              --preset "$BUILD_PRESET" \
              --context "$EVENT" \
              --context-ref "$RELEASE" $FORCE_LATEST \
-              --extra-flags "--build-arg INCLUDE_CHROMIUM=false --tag $IMAGE_TAG" \
+              --extra-flags "--build-arg PY_VER=3.11.14-slim-trixie --build-arg INCLUDE_CHROMIUM=false --tag $IMAGE_TAG" \
              $PLATFORM_ARG; then
              break
            fi
@@ -173,11 +180,11 @@ jobs:
    # goal is to check that building the latest image works, not required for all PR pushes
    needs: changes
    if: github.event_name == 'push' && github.ref == 'refs/heads/master' && needs.changes.outputs.docker == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Free up disk space
@@ -206,3 +213,14 @@ jobs:
        shell: bash
        run: |
          docker compose -f docker-compose-image-tag.yml up superset-init --exit-code-from superset-init
+
+  actions-timeline:
+    needs: [docker-build, docker-compose-image-tag]
+    if: always()
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: read
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -15,7 +15,7 @@ jobs:
    # gate on. Restrict to the canonical repo: forks cannot mint a valid OIDC
    # token for this package and must not publish.
    if: github.repository == 'apache/superset'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    permissions:
      contents: read
      id-token: write # required for npm trusted publishing (OIDC)
@@ -23,7 +23,7 @@ jobs:
      run:
        working-directory: superset-embedded-sdk
    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      # Note: registry-url is intentionally omitted. When set, actions/setup-node
@@ -31,7 +31,7 @@ jobs:
      # token, which makes npm attempt token auth and skip the OIDC
      # trusted-publishing exchange. With no .npmrc auth line, npm authenticates
      # via OIDC against the default registry (registry.npmjs.org).
-      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-embedded-sdk/.nvmrc"
      - run: npm ci
@@ -16,15 +16,15 @@ concurrency:

 jobs:
  embedded-sdk-test:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    defaults:
      run:
        working-directory: superset-embedded-sdk
    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
-      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-embedded-sdk/.nvmrc"
          registry-url: "https://registry.npmjs.org"
@@ -11,7 +11,7 @@ permissions:

 jobs:
  config:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    outputs:
      has-secrets: ${{ steps.check.outputs.has-secrets }}
    steps:
@@ -29,15 +29,15 @@ jobs:
    needs: config
    if: needs.config.outputs.has-secrets
    name: Generate Report
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
      - name: Setup Java
-        uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520 # v5.4.0
+        uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95 # v5.6.0
        with:
          distribution: "temurin"
          java-version: "11"
@@ -19,7 +19,7 @@ concurrency:

 jobs:
  validate-all-ghas:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: read
      # Required for the zizmor action to upload its SARIF results to
@@ -27,22 +27,23 @@ jobs:
      security-events: write
    steps:
      - name: Checkout Repository
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: "20"

      - name: Install Dependencies
-        # Versions are pinned to avoid ad-hoc, unpinned package installs
-        # (zizmor adhoc-packages). Bump deliberately when upgrading.
+        # Versions are pinned to avoid ad-hoc, unpinned package installs.
+        # Bump deliberately when upgrading.
+        # zizmor: ignore[adhoc-packages] - @action-validator is a global CLI tool installed to validate the repo's workflows; a global CLI install has no application manifest/lockfile context, and the versions are pinned above
        run: npm install -g @action-validator/core@0.6.0 @action-validator/cli@0.6.0

      - name: Run Script
        run: bash .github/workflows/github-action-validator.sh

      - name: Check for security issues on GHA workflows
-        uses: zizmorcore/zizmor-action@192e21d79ab29983730a13d1382995c2307fbcaa # v0.5.7
+        uses: zizmorcore/zizmor-action@6fc4b006235f201fdab3722e17240ab420d580e5 # v0.6.1
@@ -0,0 +1,115 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+name: Hold Label CI Gate
+
+on:
+  pull_request:
+    types: [labeled, unlabeled]
+
+permissions: {}
+
+jobs:
+  cancel-on-hold:
+    name: Cancel CI runs when hold label applied
+    if: github.event.action == 'labeled' && startsWith(github.event.label.name, 'hold')
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: write
+      pull-requests: read
+    steps:
+      - name: Cancel in-progress workflow runs
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const { owner, repo } = context.repo;
+            const sha = context.payload.pull_request.head.sha;
+
+            const { data: { workflow_runs: runs } } =
+              await github.rest.actions.listWorkflowRunsForRepo({
+                owner,
+                repo,
+                head_sha: sha,
+                per_page: 100,
+              });
+
+            const active = runs.filter(r =>
+              ['in_progress', 'queued', 'waiting', 'requested', 'pending'].includes(r.status)
+            );
+
+            core.info(`Found ${active.length} active run(s) to cancel for SHA ${sha}`);
+
+            for (const run of active) {
+              try {
+                await github.rest.actions.cancelWorkflowRun({
+                  owner,
+                  repo,
+                  run_id: run.id,
+                });
+                core.info(`Cancelled run ${run.id} (${run.name})`);
+              } catch (err) {
+                core.warning(`Could not cancel run ${run.id}: ${err.message}`);
+              }
+            }
+
+  rerun-on-unhold:
+    name: Re-run CI when hold label removed
+    if: github.event.action == 'unlabeled' && startsWith(github.event.label.name, 'hold')
+    runs-on: ubuntu-24.04
+    permissions:
+      actions: write
+      pull-requests: read
+    steps:
+      - name: Re-trigger cancelled workflow runs
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const { owner, repo } = context.repo;
+            const sha = context.payload.pull_request.head.sha;
+
+            // Check that no other hold* labels remain on the PR
+            const labels = context.payload.pull_request.labels.map(l => l.name);
+            const stillHeld = labels.some(l => l.startsWith('hold'));
+            if (stillHeld) {
+              core.info('PR still has a hold label — skipping re-run.');
+              return;
+            }
+
+            const { data: { workflow_runs: runs } } =
+              await github.rest.actions.listWorkflowRunsForRepo({
+                owner,
+                repo,
+                head_sha: sha,
+                per_page: 100,
+              });
+
+            const cancelled = runs.filter(r => r.conclusion === 'cancelled');
+            core.info(`Found ${cancelled.length} cancelled run(s) to re-trigger for SHA ${sha}`);
+
+            for (const run of cancelled) {
+              try {
+                await github.rest.actions.reRunWorkflow({
+                  owner,
+                  repo,
+                  run_id: run.id,
+                });
+                core.info(`Re-triggered run ${run.id} (${run.name})`);
+              } catch (err) {
+                core.warning(`Could not re-run ${run.id}: ${err.message}`);
+              }
+            }
@@ -2,21 +2,21 @@ name: supersetbot orglabel based on author

 on:
  issues:
-    types: [created, edited]
+    types: [opened, edited]

  pull_request:
-    types: [created, edited]
+    types: [opened, edited]

 jobs:
  superbot-orglabel:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    permissions:
      contents: read
      pull-requests: write
      issues: write
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

@@ -30,4 +30,4 @@ jobs:
          # Label the issue with the appropriate org using supersetbot
          # - this requires for the author to be publicly associated with their org
          # - and for the org to be listed in `supersetbot/src/metadata.js`
-          supersetbot orglabel --issue ${{ github.event.number }} --repo ${{ github.repository }} || true
+          supersetbot orglabel --issue ${{ github.event.number || github.event.issue.number }} --repo ${{ github.repository }} || true
@@ -0,0 +1,54 @@
+name: Label Merge Conflicts
+
+# Sweeps every open PR and labels the ones GitHub reports as CONFLICTING with
+# `requires:rebase` (removing it once a rebase makes the PR mergeable again),
+# so the label can be used to filter the PR backlog for the ones that need a
+# rebase before they can be reviewed/merged.
+#
+# The action itself always re-checks *every* open PR via GraphQL on each run
+# regardless of what triggered it (see eps1lon/actions-label-merge-conflict's
+# sources/main.ts) - there's no way to scope it to "just this PR". The
+# project's own README suggests triggering on `push` (to the default branch)
+# plus `pull_request_target: [synchronize]`, but on a repo with Superset's PR
+# volume that combination would re-sweep the entire open-PR list on every
+# merge to master *and* every push to *any* open PR - many times an hour.
+# A schedule bounds that to a fixed, predictable cadence instead; adjust it
+# if 2 hours turns out to be too slow or too chatty in practice.
+on:
+  schedule:
+    - cron: "0 */2 * * *"
+  workflow_dispatch:
+
+# Avoid two full backlog sweeps racing (a manual workflow_dispatch landing
+# mid-schedule-tick, say); queue rather than cancel so an in-progress
+# paginated sweep always runs to completion.
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: false
+
+permissions: {}
+
+jobs:
+  label-merge-conflicts:
+    # Scheduled/dispatch workflows still run on forks that carry this file;
+    # skip anywhere but the canonical repo.
+    if: github.repository == 'apache/superset'
+    name: Label Merge Conflicts
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write # to add/remove requires:rebase and need:merge
+    steps:
+      # ASF Infra allowlists this whole action via a wildcard
+      # (eps1lon/actions-label-merge-conflict@*), so any pinned SHA/version
+      # is already fine here - no Infra ticket needed for future bumps.
+      - uses: eps1lon/actions-label-merge-conflict@0273be72a0bbd58fcd71d0d6c02c209b50d1e5e1 # v3.1.0
+        with:
+          dirtyLabel: "requires:rebase"
+          # A conflicting PR isn't actually ready to merge; strip that signal
+          # if it was previously set so reviewers don't act on a stale one.
+          removeOnDirtyLabel: "need:merge"
+          repoToken: ${{ secrets.GITHUB_TOKEN }}
+          # Intentionally no commentOnDirty/commentOnClean: the label alone is
+          # the signal (matches the label's existing description, and avoids
+          # a one-time comment storm across the whole backlog on first run).
@@ -12,9 +12,9 @@ jobs:
    permissions:
      contents: read
      pull-requests: write
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    steps:
-    - uses: actions/labeler@f27b608878404679385c85cfa523b85ccb86e213 # v6.1.0
+    - uses: actions/labeler@bf12e9b00b37c5c0ca2b87b79b2daf7891dbda13 # v7.0.0
      with:
        sync-labels: true

@@ -6,13 +6,13 @@ on:
 jobs:
  latest-release:
    name: Add/update tag to new release
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    permissions:
      contents: write

    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -15,15 +15,15 @@ concurrency:
 jobs:
  license_check:
    name: License Check
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
      - name: Setup Java
-        uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520 # v5.4.0
+        uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95 # v5.6.0
        with:
          distribution: "temurin"
          java-version: "11"
@@ -0,0 +1,113 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# Mirror the Docker Hub service-container images that CI relies on into the
+# repository's GitHub Container Registry (GHCR) namespace.
+#
+# WHY: CI jobs declare Postgres/MySQL/Redis/Presto as `services:` containers
+# pulled anonymously from Docker Hub. Anonymous pulls share the runner's IP
+# rate limit, which causes intermittent timeouts / 429s / 502s on `master`
+# and same-repo PRs. The obvious fix — adding `credentials:` to the service
+# blocks — breaks fork PRs hard: forks can't read secrets, so the templated
+# username/password resolve to '' and GitHub rejects the workflow at parse
+# time ("Unexpected value ''"), failing every fork job at "Set up job".
+#
+# Mirroring to GHCR sidesteps both problems: public GHCR images are pulled
+# without Docker Hub's anonymous rate limit AND without any credentials, so
+# the consuming workflows need no `credentials:` block and forks work
+# unchanged.
+#
+# ONE-TIME BOOTSTRAP (maintainer, after this lands on the default branch):
+#   1. Run this workflow once (Actions tab → "Mirror service images to GHCR"
+#      → Run workflow), or wait for the weekly schedule.
+#   2. In the org's Packages settings, set each mirrored package's visibility
+#      to **public** (apache/superset → ci/postgres, ci/mysql, ci/redis,
+#      ci/presto). Public visibility is what lets fork CI pull without auth.
+#   3. Only then merge the follow-up that repoints the `services.*.image`
+#      refs at these GHCR copies and drops the `credentials:` blocks.
+#
+# NOTE: this mirrors only the images declared as `services:` containers (the
+# ones that broke forks). The `bde2020` hive-metastore image pulled via
+# `docker compose` in the Presto/Hive job is a separate path and is left for
+# a follow-up.
+
+name: Mirror service images to GHCR
+
+on:
+  schedule:
+    # Weekly, Monday 06:00 UTC — keeps the mirror fresh as upstream tags move.
+    - cron: "0 6 * * 1"
+  workflow_dispatch: {}
+
+concurrency:
+  group: mirror-service-images
+  cancel-in-progress: false
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  mirror:
+    # Never run on forks: they lack both the secrets and write access to the
+    # apache GHCR namespace, so a scheduled run there would only ever fail.
+    if: github.repository == 'apache/superset'
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        # Keep this list in sync with the `services.*.image` refs in
+        # superset-e2e.yml, superset-python-integrationtest.yml, and
+        # superset-python-presto-hive.yml.
+        image:
+          - postgres:17-alpine
+          - redis:7-alpine
+          - mysql:8.0
+          - starburstdata/presto:350-e.6
+    steps:
+      - name: Log in to Docker Hub (authenticated source pulls)
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
+        with:
+          username: ${{ secrets.DOCKERHUB_USER }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Log in to GHCR (push target)
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c # v4.2.0
+
+      - name: Copy image to GHCR
+        env:
+          # Pass the matrix value through the environment rather than
+          # interpolating it into the shell, to avoid template injection.
+          SRC_IMAGE: ${{ matrix.image }}
+        run: |
+          set -euo pipefail
+          # Destination keeps the image's short name (drop any namespace),
+          # under a `ci/` prefix in this repo's GHCR namespace.
+          name="${SRC_IMAGE##*/}"
+          dst="ghcr.io/${GITHUB_REPOSITORY}/ci/${name}"
+          echo "Mirroring docker.io/${SRC_IMAGE} -> ${dst}"
+          # imagetools copies the full (multi-arch) manifest registry-to-
+          # registry without a local pull/retag/push round trip.
+          docker buildx imagetools create --tag "${dst}" "docker.io/${SRC_IMAGE}"
+          echo "- \`docker.io/${SRC_IMAGE}\` → \`${dst}\`" >> "${GITHUB_STEP_SUMMARY}"
@@ -17,7 +17,7 @@ concurrency:

 jobs:
  check-hold-label:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    steps:
    - name: Check for 'hold' label
      uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
@@ -8,20 +8,26 @@ on:
    # Possible values: https://help.github.com/en/actions/reference/events-that-trigger-workflows#pull-request-event-pull_request
    types: [opened, edited, reopened, synchronize]

-# cancel previous workflow jobs for PRs
+# Serialize runs per PR without cancelling: the `edited` trigger means a PR
+# opened and then edited has two queued runs for the same head SHA. On
+# first-time-contributor PRs those runs start together when a maintainer
+# approves workflows, and cancel-in-progress lets the older run cancel the
+# newer one — leaving a permanently-cancelled required check on the head SHA
+# that blocks merging until manually re-run. This job takes seconds, so let
+# queued runs complete instead.
 concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
-  cancel-in-progress: true
+  cancel-in-progress: false

 jobs:
  lint-check:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -7,9 +7,15 @@ on:
      - "[0-9].[0-9]*"
  pull_request:
    types: [synchronize, opened, reopened, ready_for_review]
+  # Nightly full-tree sweep. Per-PR runs only lint changed files, so a change
+  # that invalidates an untouched file (e.g. a type change that breaks an
+  # importing test) can pass every PR yet leave master red. This catches that.
+  schedule:
+    - cron: "0 6 * * *"

 permissions:
  contents: read
+  actions: read

 # cancel previous workflow jobs for PRs
 concurrency:
@@ -18,35 +24,37 @@ concurrency:

 jobs:
  pre-commit:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 20
    strategy:
      matrix:
        # Run the full version spread on push (master/release) and nightly,
        # but only the current version on PRs — lint/format/type results
        # rarely differ across patch versions, so 3x per PR is wasteful.
-        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["current", "previous", "next"]') }}
+        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["current", "next"]') }}
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
+          # Full history so we can diff a PR/push against its base commit to
+          # determine changed files (see "Determine changed files" below).
+          fetch-depth: 0
+
      - name: Setup Python
        uses: ./.github/actions/setup-backend/
        with:
          python-version: ${{ matrix.python-version }}
-      - name: Enable brew and helm-docs
-        # Add brew to the path - see https://github.com/actions/runner-images/issues/6283
-        run: |
-          echo "/home/linuxbrew/.linuxbrew/bin:/home/linuxbrew/.linuxbrew/sbin" >> $GITHUB_PATH
-          eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
-          echo "HOMEBREW_PREFIX=$HOMEBREW_PREFIX" >>"${GITHUB_ENV}"
-          echo "HOMEBREW_CELLAR=$HOMEBREW_CELLAR" >>"${GITHUB_ENV}"
-          echo "HOMEBREW_REPOSITORY=$HOMEBREW_REPOSITORY" >>"${GITHUB_ENV}"
-          brew install norwoodj/tap/helm-docs
+
+      - name: Setup Go
+        uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
+
+      - name: Install helm-docs
+        run: go install github.com/norwoodj/helm-docs/cmd/helm-docs@v1.14.2
+
      - name: Setup Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "superset-frontend/.nvmrc"
          cache: "npm"
@@ -70,19 +78,98 @@ jobs:
          restore-keys: |
            pre-commit-v2-${{ runner.os }}-py${{ matrix.python-version }}-

-      - name: Get changed files
+      - name: Determine changed files
        id: changed_files
-        uses: ./.github/actions/file-changes-action
-        with:
-          output: " "
+        env:
+          EVENT_NAME: ${{ github.event_name }}
+          BEFORE_SHA: ${{ github.event.before }}
+        run: |
+          set -euo pipefail
+
+          # Scheduled runs check the whole tree (see the pre-commit step).
+          if [ "${EVENT_NAME}" = "schedule" ]; then
+            echo "mode=all" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          # Resolve the commit to diff against.
+          base=""
+          if [ "${EVENT_NAME}" = "pull_request" ]; then
+            # HEAD is the PR merge commit, so its first parent is the current
+            # tip of the base branch. github.event.pull_request.base.sha is
+            # NOT that: GitHub freezes it at PR creation, so on a long-lived
+            # PR it points at the original branch point and the diff picks up
+            # all of the base branch's churn since then — thousands of paths,
+            # enough for the CHANGED_FILES env var below to exceed the
+            # kernel's per-variable size limit and kill the step with
+            # "Argument list too long" before bash even starts.
+            base="$(git rev-parse HEAD^1 2>/dev/null || true)"
+          elif [ -n "${BEFORE_SHA:-}" ] && \
+               [ "${BEFORE_SHA}" != "0000000000000000000000000000000000000000" ]; then
+            base="${BEFORE_SHA}"
+          fi
+
+          # Fail closed: if the diff base can't be resolved, check every file
+          # instead of silently checking nothing. Previously an empty file list
+          # made `pre-commit run --files` a no-op that still reported success,
+          # which let unlinted code reach master.
+          if [ -z "${base}" ] || ! git cat-file -e "${base}^{commit}" 2>/dev/null; then
+            echo "::notice::Could not resolve a diff base; falling back to --all-files."
+            echo "mode=all" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          # Files present in HEAD that changed since the base (drop deletions).
+          files="$(git diff --name-only --diff-filter=ACMRT "${base}...HEAD")"
+
+          # Env vars have a hard per-variable size limit (E2BIG at step
+          # start). A PR that legitimately touches thousands of files is
+          # better served by --all-files anyway.
+          if [ "$(printf '%s' "${files}" | wc -c)" -gt 100000 ]; then
+            echo "::notice::Changed-file list too large to pass via env; falling back to --all-files."
+            echo "mode=all" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          if [ -z "${files}" ]; then
+            echo "mode=none" >> "$GITHUB_OUTPUT"
+          else
+            echo "mode=files" >> "$GITHUB_OUTPUT"
+            {
+              echo "files<<__CHANGED_FILES_EOF__"
+              echo "${files}"
+              echo "__CHANGED_FILES_EOF__"
+            } >> "$GITHUB_OUTPUT"
+          fi

      - name: pre-commit
        env:
+          MODE: ${{ steps.changed_files.outputs.mode }}
          CHANGED_FILES: ${{ steps.changed_files.outputs.files }}
        run: |
          set +e  # Don't exit immediately on failure
          export SKIP=type-checking-frontend
-          pre-commit run --files $CHANGED_FILES
+
+          case "${MODE}" in
+            all)
+              echo "ℹ️ Running pre-commit on all files."
+              pre-commit run --all-files
+              ;;
+            files)
+              echo "ℹ️ Running pre-commit on changed files:"
+              echo "${CHANGED_FILES}"
+              # shellcheck disable=SC2086
+              pre-commit run --files ${CHANGED_FILES}
+              ;;
+            none)
+              echo "ℹ️ No source files changed; nothing for pre-commit to check."
+              exit 0
+              ;;
+            *)
+              echo "⚠️ Unrecognized changed-files mode '${MODE}'; checking all files."
+              pre-commit run --all-files
+              ;;
+          esac
          PRE_COMMIT_EXIT_CODE=$?
          git diff --quiet --exit-code
          GIT_DIFF_EXIT_CODE=$?
@@ -102,3 +189,12 @@ jobs:
            echo "📖 More details here: https://superset.apache.org/docs/contributing/development#git-hooks"
            exit 1
          fi
+
+  actions-timeline:
+    needs: pre-commit
+    if: always()
+    runs-on: ubuntu-26.04
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -11,7 +11,7 @@ permissions:

 jobs:
  config:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    outputs:
      has-secrets: ${{ steps.check.outputs.has-secrets }}
    steps:
@@ -29,11 +29,11 @@ jobs:
    needs: config
    if: needs.config.outputs.has-secrets
    name: Bump version and publish package(s)
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: write
    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          # pulls all commits (needed for lerna / semantic release to correctly version)
@@ -50,7 +50,7 @@ jobs:

      - name: Install Node.js
        if: env.HAS_TAGS
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-frontend/.nvmrc"

@@ -40,7 +40,7 @@ concurrency:

 jobs:
  config:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    outputs:
      has-secrets: ${{ steps.check.outputs.has-secrets }}
      latest-release: ${{ steps.latest.outputs.tag }}
@@ -93,16 +93,16 @@ jobs:
    needs: config
    if: needs.config.outputs.has-secrets == '1'
    name: docker-rebuild
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    strategy:
      # Mirror the same matrix the release publisher uses so every variant
      # operators consume from Docker Hub gets the refreshed base.
      matrix:
-        build_preset: ["dev", "lean", "py310", "websocket", "dockerize", "py311", "py312"]
+        build_preset: ["dev", "lean", "websocket", "dockerize", "py311", "py312"]
      fail-fast: false
    steps:
      - name: "Checkout release tag: ${{ needs.config.outputs.latest-release }}"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ needs.config.outputs.latest-release }}
          fetch-depth: 0
@@ -117,7 +117,7 @@ jobs:
          build: "true"

      - name: Use Node.js 20
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 20

@@ -155,7 +155,7 @@ jobs:
  notify-on-failure:
    needs: [config, docker-rebuild]
    if: failure() && needs.config.outputs.has-secrets == '1'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: read
      issues: write
@@ -2,7 +2,8 @@ name: 🎪 Superset Showtime

 # Ultra-simple: just sync on any PR state change
 on:
-  # zizmor: ignore[dangerous-triggers] - required to react to PR label changes; this workflow does not check out or execute PR-provided code
+  # zizmor: ignore[dangerous-triggers] - required to react to PR label changes; PR code is
+  # only checked out and built after the maintainer-authorization gate (write/admin actors)
  pull_request_target:
    types: [labeled, unlabeled, synchronize, closed]

@@ -152,10 +153,14 @@ jobs:

      - name: Checkout PR code (only if build needed)
        if: steps.auth.outputs.authorized == 'true' && steps.check.outputs.build_needed == 'true'
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ steps.check.outputs.target_sha }}
          persist-credentials: false
+          # Building fork PR code is Showtime's purpose: deploys are gated on the
+          # maintainer-authorization step above (write/admin actors only), so this
+          # checkout is an explicit, authorized opt-in rather than an automatic one.
+          allow-unsafe-pr-checkout: true

      - name: Setup Docker Environment (only if build needed)
        if: steps.auth.outputs.authorized == 'true' && steps.check.outputs.build_needed == 'true'
@@ -11,6 +11,7 @@ on:
 permissions:
  contents: read
  pull-requests: read
+  actions: read

 # cancel previous workflow jobs for PRs
 concurrency:
@@ -19,7 +20,7 @@ concurrency:

 jobs:
  test-load-examples:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    env:
      PYTHONPATH: ${{ github.workspace }}
      SUPERSET_CONFIG: tests.integration_tests.superset_test_config
@@ -40,8 +41,12 @@ jobs:
        ports:
          - 16379:6379
    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
+
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -30,10 +30,11 @@ concurrency:

 permissions:
  contents: read
+  actions: read

 jobs:
  config:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    outputs:
      has-secrets: ${{ steps.check.outputs.has-secrets }}
    steps:
@@ -57,21 +58,25 @@ jobs:
      (github.event_name != 'workflow_run' ||
       github.event.workflow_run.head_repository.full_name == github.repository)
    name: Build & Deploy
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
+
      - name: "Checkout ${{ github.event.workflow_run.head_sha || github.sha }}"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ github.event.workflow_run.head_sha || github.sha }}
          persist-credentials: false
          submodules: recursive
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./docs/.nvmrc"
      - name: Setup Python
        uses: ./.github/actions/setup-backend/
-      - uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520 # v5.4.0
+      - uses: actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95 # v5.6.0
        with:
          distribution: "zulu"
          java-version: "21"
@@ -21,64 +21,79 @@ permissions:
  contents: read

 jobs:
-  linkinator:
-    # See docs here: https://github.com/marketplace/actions/linkinator
+  lychee:
+    # See docs here: https://github.com/lycheeverse/lychee-action
    # Only run on pull_request, not workflow_run
    if: github.event_name == 'pull_request'
    name: Link Checking
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
-      # Do not bump this linkinator-action version without opening
-      # an ASF Infra ticket to allow the new version first!
-      - uses: JustinBeckwith/linkinator-action@af984b9f30f63e796ae2ea5be5e07cb587f1bbd9 # v2.3
+      # Restores the on-disk request cache (.lycheecache) lychee writes when
+      # `--cache` is set, so re-runs don't re-check every external link from
+      # scratch. Key never matches exactly (github.run_id is unique per run),
+      # so actions/cache always saves a fresh copy afterwards; restore-keys
+      # falls back to the most recent prior cache on lookup.
+      - uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
+        with:
+          path: .lycheecache
+          key: lychee-cache-${{ github.run_id }}
+          restore-keys: lychee-cache-
+      # v2.8.0 and v2.9.0 are both on ASF Infra's action allowlist
+      # (apache/infrastructure-actions approved_patterns.yml) as of this
+      # writing. Do not bump past v2.9.0 without opening an Infra ticket
+      # to allow the new SHA first!
+      - uses: lycheeverse/lychee-action@e7477775783ea5526144ba13e8db5eec57747ce8 # v2.9.0
        continue-on-error: true # This will make the job advisory (non-blocking, no red X)
        with:
-          paths: "**/*.md, **/*.mdx"
-          linksToSkip: >-
-            ^https://github.com/apache/(superset|incubator-superset)/(pull|issues)/\d+,
-            ^https://github.com/apache/(superset|incubator-superset)/commit/[a-f0-9]+,
-            superset-frontend/.*CHANGELOG\.md,
-            http://localhost:8088/,
-            http://127.0.0.1:3000/,
-            http://localhost:9001/,
-            https://charts.bitnami.com/bitnami,
-            https://www.li.me/,
-            https://www.fanatics.com/,
-            https://tails.com/gb/,
-            https://www.techaudit.info/,
-            https://avetilearning.com/,
-            https://www.udemy.com/,
-            https://trustmedis.com/,
-            http://theiconic.com.au/,
-            https://dev.mysql.com/doc/refman/5.7/en/innodb-limits.html,
-            ^https://img\.shields\.io/.*,
-            https://vkusvill.ru/,
-            https://www.linkedin.com/in/mark-thomas-b16751158/,
-            https://theiconic.com.au/,
-            https://wattbewerb.de/,
-            https://timbr.ai/,
-            https://opensource.org/license/apache-2-0,
-            https://www.plaidcloud.com/
+          fail: false
+          args: >-
+            --verbose --no-progress
+            --cache --max-cache-age 7d
+            --exclude '^https://github.com/apache/(superset|incubator-superset)/(pull|issues)/\d+'
+            --exclude '^https://github.com/apache/(superset|incubator-superset)/commit/[a-f0-9]+'
+            --exclude 'superset-frontend/.*CHANGELOG\.md'
+            --exclude 'http://localhost:8088/'
+            --exclude 'http://127.0.0.1:3000/'
+            --exclude 'http://localhost:9001/'
+            --exclude 'https://charts.bitnami.com/bitnami'
+            --exclude 'https://www.li.me/'
+            --exclude 'https://www.fanatics.com/'
+            --exclude 'https://tails.com/gb/'
+            --exclude 'https://www.techaudit.info/'
+            --exclude 'https://avetilearning.com/'
+            --exclude 'https://www.udemy.com/'
+            --exclude 'https://trustmedis.com/'
+            --exclude 'http://theiconic.com.au/'
+            --exclude 'https://dev.mysql.com/doc/refman/5.7/en/innodb-limits.html'
+            --exclude '^https://img\.shields\.io/.*'
+            --exclude 'https://vkusvill.ru/'
+            --exclude 'https://www.linkedin.com/in/mark-thomas-b16751158/'
+            --exclude 'https://theiconic.com.au/'
+            --exclude 'https://wattbewerb.de/'
+            --exclude 'https://timbr.ai/'
+            --exclude 'https://opensource.org/license/apache-2-0'
+            --exclude 'https://www.plaidcloud.com/'
+            './**/*.md' './**/*.mdx'

  build-on-pr:
    # Build docs when PR changes docs/** (uses committed databases.json)
    if: github.event_name == 'pull_request'
    name: Build (PR trigger)
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    defaults:
      run:
        working-directory: docs
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./docs/.nvmrc"
      - name: yarn install
@@ -106,19 +121,19 @@ jobs:
      github.event.workflow_run.conclusion == 'success' &&
      github.event.workflow_run.head_repository.full_name == github.repository
    name: Build (after integration tests)
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    defaults:
      run:
        working-directory: docs
    steps:
      - name: "Checkout PR head: ${{ github.event.workflow_run.head_sha }}"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ github.event.workflow_run.head_sha }}
          persist-credentials: false
          submodules: recursive
      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./docs/.nvmrc"
      - name: yarn install
@@ -28,7 +28,7 @@ concurrency:

 jobs:
  changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 10
    permissions:
      contents: read
@@ -38,7 +38,7 @@ jobs:
      frontend: ${{ steps.check.outputs.frontend }}
    steps:
      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check for file changes
@@ -50,27 +50,20 @@ jobs:
  cypress-matrix:
    needs: changes
    if: (needs.changes.outputs.python == 'true' || needs.changes.outputs.frontend == 'true') && github.event.pull_request.draft == false
-    # Somehow one test flakes on 24.04 for unknown reasons, this is the only GHA left on 22.04
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
    permissions:
      contents: read
      pull-requests: read
    strategy:
      # when one test fails, DO NOT cancel the other
-      # parallel_id, because this will kill Cypress processes
+      # app_root variant, because this will kill Cypress processes
      # leaving the Dashboard hanging ...
      # https://github.com/cypress-io/github-action/issues/48
      fail-fast: false
      matrix:
-        parallel_id: [0, 1]
        browser: ["chrome"]
        app_root: ${{ github.event_name == 'push' && fromJSON('["", "/app/prefix"]') || fromJSON('[""]') }}
-        # The /app/prefix variant (push events only) is smoke-tested on a single
-        # shard rather than the full matrix, so exclude it from the other shards.
-        exclude:
-          - parallel_id: 1
-            app_root: "/app/prefix"
    env:
      SUPERSET_ENV: development
      SUPERSET_CONFIG: tests.integration_tests.superset_test_config
@@ -97,21 +90,21 @@ jobs:
      # Conditional checkout based on context
      - name: Checkout for push or pull_request event
        if: github.event_name == 'push' || github.event_name == 'pull_request'
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
      - name: Checkout using ref (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch' && github.event.inputs.ref != ''
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          ref: ${{ github.event.inputs.ref }}
          submodules: recursive
      - name: Checkout using PR ID (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch' && github.event.inputs.pr_id != ''
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          ref: refs/pull/${{ github.event.inputs.pr_id }}/merge
@@ -128,7 +121,7 @@ jobs:
        with:
          run: testdata
      - name: Setup Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-frontend/.nvmrc"
          cache: "npm"
@@ -149,8 +142,6 @@ jobs:
        uses: ./.github/actions/cached-dependencies
        env:
          CYPRESS_BROWSER: ${{ matrix.browser }}
-          PARALLEL_ID: ${{ matrix.parallel_id }}
-          PARALLELISM: 2
          CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
          NODE_OPTIONS: "--max-old-space-size=4096"
        with:
@@ -168,12 +159,12 @@ jobs:
        if: failure()
        with:
          path: ${{ github.workspace }}/superset-frontend/cypress-base/cypress/screenshots
-          name: cypress-artifact-${{ github.run_id }}-${{ github.job }}-${{ matrix.browser }}-${{ matrix.parallel_id }}--${{ steps.set-safe-app-root.outputs.safe_app_root }}
+          name: cypress-artifact-${{ github.run_id }}-${{ github.job }}-${{ matrix.browser }}--${{ steps.set-safe-app-root.outputs.safe_app_root }}

  playwright-tests:
    needs: changes
    if: needs.changes.outputs.python == 'true' || needs.changes.outputs.frontend == 'true'
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
    permissions:
      contents: read
@@ -207,21 +198,21 @@ jobs:
      # Conditional checkout based on context (same as Cypress workflow)
      - name: Checkout for push or pull_request event
        if: github.event_name == 'push' || github.event_name == 'pull_request'
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
      - name: Checkout using ref (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch' && github.event.inputs.ref != ''
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          ref: ${{ github.event.inputs.ref }}
          submodules: recursive
      - name: Checkout using PR ID (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch' && github.event.inputs.pr_id != ''
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          ref: refs/pull/${{ github.event.inputs.pr_id }}/merge
@@ -238,7 +229,7 @@ jobs:
        with:
          run: playwright_testdata
      - name: Setup Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-frontend/.nvmrc"
          cache: "npm"
@@ -265,6 +256,21 @@ jobs:
          NODE_OPTIONS: "--max-old-space-size=4096"
        with:
          run: playwright-run "${{ matrix.app_root }}"
+      - name: Run Playwright (Soft-delete Tests)
+        uses: ./.github/actions/cached-dependencies
+        env:
+          NODE_OPTIONS: "--max-old-space-size=4096"
+          # Scoped to this step: each playwright-run boots its own gunicorn
+          # with the step's env, so the Required Tests server above keeps
+          # master's Flask configuration while this one runs with SOFT_DELETE
+          # on — the same isolation pattern as the Embedded step in
+          # superset-playwright.yml. Without a flag-on server the
+          # recently-archived specs skip themselves everywhere and ship zero
+          # executed E2E coverage; in the Required run above they are
+          # collected and skipped, which is expected.
+          SUPERSET_FEATURE_SOFT_DELETE: "true"
+        with:
+          run: playwright-run "${{ matrix.app_root }}" recently-archived/
      - name: Set safe app root
        if: failure()
        id: set-safe-app-root
@@ -301,7 +307,7 @@ jobs:
  cypress-matrix-required:
    needs: [changes, cypress-matrix]
    if: always()
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 5
    permissions: {}
    steps:
@@ -323,7 +329,7 @@ jobs:
  playwright-tests-required:
    needs: [changes, playwright-tests]
    if: always()
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 5
    permissions: {}
    steps:
@@ -341,3 +347,14 @@ jobs:
            exit 1
          fi
          echo "playwright-tests result: $RESULT (changes: $CHANGES)"
+
+  actions-timeline:
+    needs: [cypress-matrix, playwright-tests, cypress-matrix-required, playwright-tests-required]
+    if: always()
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: read
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -11,6 +11,7 @@ on:
 permissions:
  contents: read
  pull-requests: read
+  actions: read

 # cancel previous workflow jobs for PRs
 concurrency:
@@ -19,19 +20,19 @@ concurrency:

 jobs:
  test-superset-extensions-cli-package:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
    strategy:
      matrix:
        # Full version spread on push (master/release) + nightly; current only
        # on PRs to cut runner cost (cross-version breaks are caught at merge).
-        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["previous", "current", "next"]') }}
+        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["current", "next"]') }}
    defaults:
      run:
        working-directory: superset-extensions-cli
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -69,3 +70,12 @@ jobs:
        with:
          name: superset-extensions-cli-coverage-html
          path: htmlcov/
+
+  actions-timeline:
+    needs: test-superset-extensions-cli-package
+    if: always()
+    runs-on: ubuntu-26.04
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -21,13 +21,19 @@ permissions:

 jobs:
  frontend-build:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
+    # The change detector reads the PR's file list, which needs
+    # `pull-requests: read`. Public repos serve that endpoint without it;
+    # private forks return 403.
+    permissions:
+      contents: read
+      pull-requests: read
    outputs:
      should-run: ${{ steps.check.outputs.frontend }}
    steps:
      - name: Checkout Code
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          fetch-depth: 0
@@ -51,7 +57,7 @@ jobs:
          git show -s --format=raw HEAD
          docker buildx build \
            -t $TAG \
-            --cache-from=type=registry,ref=apache/superset-cache:3.10-slim-trixie \
+            --cache-from=type=registry,ref=apache/superset-cache:3.11-slim-trixie \
            --target superset-node-ci \
            .

@@ -74,7 +80,7 @@ jobs:
      matrix:
        shard: [1, 2, 3, 4, 5, 6, 7, 8]
      fail-fast: false
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 20
    steps:
      - name: Download Docker Image Artifact
@@ -104,13 +110,13 @@ jobs:
  report-coverage:
    needs: [sharded-jest-tests]
    if: needs.frontend-build.outputs.should-run == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 15
    permissions:
      id-token: write
    steps:
      - name: Checkout Code
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          fetch-depth: 0
@@ -122,31 +128,19 @@ jobs:
          pattern: coverage-artifacts-*
          path: coverage/

-      - name: Reorganize test result reports
-        run: |
-          find coverage/
-          for i in {1..8}; do
-            mv coverage/coverage-artifacts-${i}/coverage-final.json coverage/coverage-shard-${i}.json
-          done
-        shell: bash
-
-      - name: Merge Code Coverage
-        run: npx nyc merge coverage/ merged-output/coverage-summary.json
-
      - name: Upload Code Coverage
        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7.0.0
        with:
          flags: javascript
          use_oidc: true
          verbose: true
-          disable_search: true
-          files: merged-output/coverage-summary.json
+          directory: coverage
          slug: apache/superset

  lint-frontend:
    needs: frontend-build
    if: needs.frontend-build.outputs.should-run == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 20
    steps:
      - name: Download Docker Image Artifact
@@ -171,7 +165,7 @@ jobs:
  validate-frontend:
    needs: frontend-build
    if: needs.frontend-build.outputs.should-run == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 20
    steps:
      - name: Download Docker Image Artifact
@@ -183,6 +177,11 @@ jobs:
        run: |
          zstd -d < docker-image.tar.zst | docker load

+      - name: Validate dependency tree
+        run: |
+          docker run --rm $TAG bash -c \
+          "npm ls --all --package-lock-only --depth=0 --json > /dev/null"
+
      - name: Build Plugins Packages
        run: |
          docker run --rm $TAG bash -c \
@@ -191,7 +190,7 @@ jobs:
  test-storybook:
    needs: frontend-build
    if: needs.frontend-build.outputs.should-run == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 25
    steps:
      - name: Download Docker Image Artifact
@@ -207,3 +206,14 @@ jobs:
        run: |
          docker run --rm $TAG bash -c \
          "npm run build-storybook && npx playwright install-deps && npx playwright install chromium && npm run test-storybook:ci"
+
+  actions-timeline:
+    needs: [report-coverage, lint-frontend, validate-frontend, test-storybook]
+    if: always()
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: read
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -2,24 +2,32 @@ name: "Helm: lint and test charts"

 on:
  pull_request:
-    types: [opened, edited, reopened, synchronize]
+    types: [opened, reopened, synchronize]
    paths:
      - "helm/**"

 permissions:
  contents: read
+  actions: read

-# cancel previous workflow jobs for PRs
+# Serialize runs per PR without cancelling: when a first-time contributor's
+# queued runs are approved together, cancel-in-progress lets an older run
+# cancel a newer one, leaving a permanently-cancelled required check on the
+# head SHA. Queued runs are cheap here, so let them all complete.
 concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
-  cancel-in-progress: true
+  cancel-in-progress: false

 jobs:
  lint-test:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
+
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -28,13 +36,18 @@ jobs:
      - name: Set up Helm
        uses: azure/setup-helm@9bc31f4ebc9c6b171d7bfbaa5d006ae7abdb4310 # v5.0.1
        with:
-          version: v3.16.4
+          version: v3.21.3

      - name: Setup Python
        uses: ./.github/actions/setup-backend/
        with:
          install-superset: "false"

+      # Still vendored (not de-vendored like chart-releaser-action below): the
+      # allowlisted helm/chart-testing-action@v2.8.0 depends internally on
+      # astral-sh/setup-uv@v7.0.0, which isn't itself on the ASF Actions
+      # allowlist (only v8.1.0+ are, at apache/infrastructure-actions'
+      # actions.yml). Needs an INFRA request before this can de-vendor too.
      - name: Set up chart-testing
        uses: ./.github/actions/chart-testing-action

@@ -56,3 +69,9 @@ jobs:
          CT_LINT_CONF: lintconf.yaml
          CT_SINCE: HEAD
          CT_CHART_REPOS: bitnami=https://charts.bitnami.com/bitnami
+
+      - name: Set up helm-unittest
+        run: helm plugin install https://github.com/helm-unittest/helm-unittest --version v1.1.1
+
+      - name: Run helm-unittest
+        run: helm unittest helm/superset
@@ -1,6 +1,9 @@
 # This workflow automates the release process for Helm charts.
-# The workflow creates a new branch for the release and opens a pull request against the 'gh-pages' branch,
-# allowing the changes to be reviewed and merged manually.
+# Each run force-recreates a single 'helm-publish' branch from the tip of 'gh-pages' and
+# opens (or reuses) one pull request against 'gh-pages', allowing the changes to be
+# reviewed and merged manually. Because chart-releaser rebuilds index.yaml from all
+# published GitHub releases, the branch always contains every chart released since the
+# last merge, and the PR can never go stale or conflict with gh-pages.

 name: "Helm: release charts"

@@ -18,9 +21,15 @@ on:
        required: false
        default: "master"

+# Serialize runs: concurrent runs would race on force-pushing the shared
+# helm-publish branch while chart-releaser is mid-release.
+concurrency:
+  group: helm-release
+  cancel-in-progress: false
+
 jobs:
  release:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: write
      pull-requests: write
@@ -29,7 +38,7 @@ jobs:

    steps:
      - name: Checkout code
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ inputs.ref || github.ref_name }}
          persist-credentials: true
@@ -57,9 +66,9 @@ jobs:
          echo "DEBUG TAGS"
          git show-ref --tags

-      - name: Create unique pages branch name
+      - name: Set pages branch name
        id: vars
-        run: echo "branch_name=helm-publish-${GITHUB_SHA:0:7}" >> $GITHUB_ENV
+        run: echo "branch_name=helm-publish" >> $GITHUB_ENV

      - name: Force recreate branch from gh-pages
        env:
@@ -86,23 +95,23 @@ jobs:
          # Return to the original branch
          git checkout local_gha_temp

-      - name: Fetch/list all tags
-        run: |
-          git submodule update
-          cat .github/actions/chart-releaser-action/action.yml
-
      - name: Run chart-releaser
-        uses: ./.github/actions/chart-releaser-action
+        uses: helm/chart-releaser-action@cae68fefc6b5f367a0275617c9f83181ba54714f # v1.7.0
        with:
          version: v1.6.0
          charts_dir: helm
          mark_as_latest: false
+          # A helm/** change without a Chart.yaml version bump repackages the
+          # already-released version; without this, cr aborts on the existing
+          # release tag (422 already_exists) instead of proceeding to rebuild
+          # the index, and the whole run fails.
+          skip_existing: true
          pages_branch: ${{ env.branch_name }}
        env:
          CR_TOKEN: "${{ github.token }}"
          CR_RELEASE_NAME_TEMPLATE: "superset-helm-chart-{{ .Version }}"

-      - name: Open Pull Request
+      - name: Open or reuse Pull Request
        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
        with:
          script: |
@@ -113,15 +122,72 @@ jobs:
              throw new Error("Branch name is not defined.");
            }

-            const pr = await github.rest.pulls.create({
+            // The branch is force-recreated from gh-pages on every run, so an
+            // already-open PR for it now reflects this run's charts; opening
+            // another would both fail (422) and recreate the stale-PR pileup
+            // this fixed branch exists to avoid.
+            const { data: existing } = await github.rest.pulls.list({
              owner,
              repo,
-              title: `Helm chart release for ${branchName}`,
-              head: branchName,
-              base: "gh-pages", // Adjust if the target branch is different
-              body: `This PR releases Helm charts to the gh-pages branch.`,
+              state: "open",
+              head: `${owner}:${branchName}`,
+              base: "gh-pages",
            });

-            core.info(`Pull request created: ${pr.data.html_url}`);
+            let current;
+            if (existing.length > 0) {
+              current = existing[0];
+              core.info(`Reusing existing pull request: ${current.html_url}`);
+            } else {
+              const { data: pr } = await github.rest.pulls.create({
+                owner,
+                repo,
+                title: "Helm chart release",
+                head: branchName,
+                base: "gh-pages", // Adjust if the target branch is different
+                body: [
+                  "This PR releases Helm charts to the gh-pages branch.",
+                  "",
+                  "It is force-updated from the tip of `gh-pages` by every release run,",
+                  "so it always contains every chart released since the last merge and",
+                  "never needs to be closed as superseded.",
+                ].join("\n"),
+              });
+              current = pr;
+              core.info(`Pull request created: ${current.html_url}`);
+            }
+
+            // Sweep release PRs left open by older runs (per-SHA helm-publish-*
+            // branches from the previous scheme). Their content is a subset of
+            // the evergreen PR, so close them with a pointer to it.
+            const { data: openPrs } = await github.rest.pulls.list({
+              owner,
+              repo,
+              state: "open",
+              base: "gh-pages",
+              per_page: 100,
+            });
+
+            for (const stale of openPrs) {
+              if (
+                stale.number !== current.number &&
+                stale.head.repo?.full_name === process.env.GITHUB_REPOSITORY &&
+                stale.head.ref.startsWith("helm-publish")
+              ) {
+                await github.rest.issues.createComment({
+                  owner,
+                  repo,
+                  issue_number: stale.number,
+                  body: `Superseded by #${current.number}, which now carries all unreleased charts. Closing.`,
+                });
+                await github.rest.pulls.update({
+                  owner,
+                  repo,
+                  pull_number: stale.number,
+                  state: "closed",
+                });
+                core.info(`Closed superseded release PR #${stale.number}`);
+              }
+            }
        env:
          BRANCH_NAME: ${{ env.branch_name }}
@@ -24,7 +24,7 @@ concurrency:

 jobs:
  changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 10
    permissions:
      contents: read
@@ -34,7 +34,7 @@ jobs:
      frontend: ${{ steps.check.outputs.frontend }}
    steps:
      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check for file changes
@@ -48,7 +48,7 @@ jobs:
  playwright-tests-experimental:
    needs: changes
    if: needs.changes.outputs.python == 'true' || needs.changes.outputs.frontend == 'true'
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
    continue-on-error: true
    permissions:
@@ -83,21 +83,21 @@ jobs:
      # Conditional checkout based on context (same as Cypress workflow)
      - name: Checkout for push or pull_request event
        if: github.event_name == 'push' || github.event_name == 'pull_request'
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
      - name: Checkout using ref (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch' && github.event.inputs.ref != ''
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          ref: ${{ github.event.inputs.ref }}
          submodules: recursive
      - name: Checkout using PR ID (workflow_dispatch)
        if: github.event_name == 'workflow_dispatch' && github.event.inputs.pr_id != ''
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          ref: refs/pull/${{ github.event.inputs.pr_id }}/merge
@@ -114,7 +114,7 @@ jobs:
        with:
          run: playwright_testdata
      - name: Setup Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-frontend/.nvmrc"
          cache: "npm"
@@ -170,3 +170,14 @@ jobs:
            ${{ github.workspace }}/superset-frontend/playwright-results/
            ${{ github.workspace }}/superset-frontend/test-results/
          name: playwright-experimental-artifact-${{ github.run_id }}-${{ github.job }}-${{ matrix.browser }}--${{ steps.set-safe-app-root.outputs.safe_app_root }}
+
+  actions-timeline:
+    needs: playwright-tests-experimental
+    if: always()
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: read
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -20,7 +20,7 @@ concurrency:

 jobs:
  changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 10
    permissions:
      contents: read
@@ -29,7 +29,7 @@ jobs:
      python: ${{ steps.check.outputs.python }}
    steps:
      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check for file changes
@@ -41,7 +41,7 @@ jobs:
  test-mysql:
    needs: changes
    if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 45
    permissions:
      id-token: write
@@ -72,7 +72,7 @@ jobs:
          - 16379:6379
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -127,7 +127,7 @@ jobs:
  test-postgres:
    needs: changes
    if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 45
    permissions:
      id-token: write
@@ -135,7 +135,7 @@ jobs:
      matrix:
        # Full version spread on push (master/release) + nightly; current only
        # on PRs to cut runner cost (cross-version breaks are caught at merge).
-        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["current", "previous", "next"]') }}
+        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["current", "next"]') }}
    env:
      PYTHONPATH: ${{ github.workspace }}
      SUPERSET_CONFIG: tests.integration_tests.superset_test_config
@@ -157,7 +157,7 @@ jobs:
          - 16379:6379
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -188,7 +188,7 @@ jobs:
  test-sqlite:
    needs: changes
    if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 45
    permissions:
      id-token: write
@@ -207,7 +207,7 @@ jobs:
          - 16379:6379
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -243,7 +243,7 @@ jobs:
  test-postgres-required:
    needs: [changes, test-postgres]
    if: always()
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 5
    steps:
      - name: Check test-postgres result
@@ -255,3 +255,14 @@ jobs:
            exit 1
          fi
          echo "test-postgres result: $RESULT"
+
+  actions-timeline:
+    needs: [test-mysql, test-postgres, test-sqlite, test-postgres-required]
+    if: always()
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: read
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -16,7 +16,7 @@ concurrency:

 jobs:
  changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 10
    permissions:
      contents: read
@@ -25,7 +25,7 @@ jobs:
      python: ${{ steps.check.outputs.python }}
    steps:
      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check for file changes
@@ -37,7 +37,7 @@ jobs:
  test-postgres-presto:
    needs: changes
    if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 45
    permissions:
      id-token: write
@@ -72,7 +72,7 @@ jobs:
          - 16379:6379
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -100,7 +100,7 @@ jobs:
  test-postgres-hive:
    needs: changes
    if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 45
    permissions:
      id-token: write
@@ -127,7 +127,7 @@ jobs:
          - 16379:6379
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -158,3 +158,14 @@ jobs:
          verbose: true
          use_oidc: true
          slug: apache/superset
+
+  actions-timeline:
+    needs: [test-postgres-presto, test-postgres-hive]
+    if: always()
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: read
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -21,7 +21,7 @@ concurrency:

 jobs:
  changes:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 10
    permissions:
      contents: read
@@ -30,7 +30,7 @@ jobs:
      python: ${{ steps.check.outputs.python }}
    steps:
      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Check for file changes
@@ -42,7 +42,7 @@ jobs:
  unit-tests:
    needs: changes
    if: needs.changes.outputs.python == 'true'
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 30
    permissions:
      id-token: write
@@ -50,12 +50,18 @@ jobs:
      matrix:
        # Full version spread on push (master/release) + nightly; current only
        # on PRs to cut runner cost (cross-version breaks are caught at merge).
-        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["previous", "current", "next"]') }}
+        python-version: ${{ github.event_name == 'pull_request' && fromJSON('["current"]') || fromJSON('["current", "next"]') }}
    env:
      PYTHONPATH: ${{ github.workspace }}
+      # Promotes the SQLAlchemy 2.0 deprecation warnings already locked in as
+      # errors via pytest.ini's `filterwarnings` to actually run in CI, so a
+      # regression on those fails the build instead of relying on a
+      # contributor remembering to set this locally. See the migration
+      # battleplan: https://github.com/apache/superset/discussions/40273
+      SQLALCHEMY_WARN_20: "1"
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -93,9 +99,16 @@ jobs:
  unit-tests-required:
    needs: [changes, unit-tests]
    if: always()
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    timeout-minutes: 5
+    permissions:
+      contents: read
+      actions: read
    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
+
      - name: Check unit-tests result
        env:
          RESULT: ${{ needs.unit-tests.result }}
@@ -20,7 +20,7 @@ permissions:

 jobs:
  post-comment:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    # Only act when the Translations workflow failed (which means a regression
    # was detected — the workflow exits 1 on regression).
    if: github.event.workflow_run.conclusion == 'failure'
@@ -19,13 +19,13 @@ concurrency:

 jobs:
  frontend-check-translations:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: read
      pull-requests: read
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -38,7 +38,7 @@ jobs:

      - name: Setup Node.js
        if: steps.check.outputs.frontend
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-frontend/.nvmrc"
          cache: "npm"
@@ -55,13 +55,13 @@ jobs:
          npm run build-translation

  babel-extract:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: read
      pull-requests: read
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          submodules: recursive
@@ -153,3 +153,14 @@ jobs:
      - name: Fail if regression detected
        if: steps.regression.outcome == 'failure'
        run: exit 1
+
+  actions-timeline:
+    needs: [frontend-check-translations, babel-extract]
+    if: always()
+    runs-on: ubuntu-26.04
+    permissions:
+      actions: read
+    steps:
+      - uses: Kesin11/actions-timeline@7bf79990b7c09f5dfb570ac30b814ca597bd538e # v3.1.1
+        with:
+          expand-composite-actions: true
@@ -21,15 +21,15 @@ concurrency:

 jobs:
  app-checks:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    timeout-minutes: 20
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Setup Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: './superset-websocket/.nvmrc'
      - name: Install dependencies
@@ -41,9 +41,9 @@ jobs:
      - name: typescript checks
        working-directory: ./superset-websocket
        run: npm run type
-      - name: prettier
+      - name: code format check
        working-directory: ./superset-websocket
-        run: npm run prettier-check
+        run: npm run format-check
      - name: unit tests
        working-directory: ./superset-websocket
        run: npm run test
@@ -15,7 +15,7 @@ on:

 jobs:
  supersetbot:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    if: >
      github.event_name == 'workflow_dispatch' ||
      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@supersetbot'))
@@ -38,7 +38,7 @@ jobs:
            });

      - name: "Checkout ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

@@ -27,7 +27,7 @@ jobs:
      # zizmor: ignore[artipacked] - required persisted credentials to push synced requirement changes back to remote
      - name: Checkout source code
        if: ${{ steps.dependabot-metadata.outputs.package-ecosystem == 'pip' }}
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          persist-credentials: true
@@ -38,7 +38,7 @@ jobs:
      - name: Login to Docker Hub
        if: ${{ steps.dependabot-metadata.outputs.package-ecosystem == 'pip' }}
        continue-on-error: true
-        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4.2.0
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
@@ -32,7 +32,7 @@ concurrency:

 jobs:
  config:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    outputs:
      has-secrets: ${{ steps.check.outputs.has-secrets }}
    steps:
@@ -50,17 +50,17 @@ jobs:
    needs: config
    if: needs.config.outputs.has-secrets
    name: docker-release
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: write
    strategy:
      matrix:
        build_preset:
-          ["dev", "lean", "py310", "websocket", "dockerize", "py311", "py312"]
+          ["dev", "lean", "websocket", "dockerize", "py311", "py312"]
      fail-fast: false
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          fetch-depth: 0
@@ -75,7 +75,7 @@ jobs:

      - name: Use Node.js 20
        # zizmor: ignore[cache-poisoning] - node only runs the supersetbot CLI; no dependency cache is enabled
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 20
          package-manager-cache: false
@@ -120,20 +120,20 @@ jobs:
  update-prs-with-release-info:
    needs: config
    if: needs.config.outputs.has-secrets
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
          fetch-depth: 0

      - name: Use Node.js 20
        # zizmor: ignore[cache-poisoning] - node only runs the supersetbot CLI; no dependency cache is enabled
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 20
          package-manager-cache: false
@@ -11,7 +11,7 @@ permissions:

 jobs:
  config:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    outputs:
      has-secrets: ${{ steps.check.outputs.has-secrets }}
    steps:
@@ -28,16 +28,16 @@ jobs:
  process-and-upload:
    needs: config
    if: needs.config.outputs.has-secrets
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    name: Generate Reports
    steps:
      - name: Checkout Repository
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

      - name: Set up Node.js
-        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version-file: "./superset-frontend/.nvmrc"

@@ -7,7 +7,7 @@ on:

 jobs:
  welcome:
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-slim
    if: github.event.pull_request.author_association == 'FIRST_TIME_CONTRIBUTOR'
    permissions:
      pull-requests: write
@@ -57,6 +57,7 @@ local_config.py
 /superset_text.yml
 superset.egg-info/
 superset/bin/supersetc
+superset/extensions/.reload_trigger
 tmp
 rat-results.txt
 superset/app/
@@ -21,9 +21,6 @@
 [submodule ".github/actions/pr-lint-action"]
 	path = .github/actions/pr-lint-action
 	url = https://github.com/morrisoncole/pr-lint-action
-[submodule ".github/actions/file-changes-action"]
-	path = .github/actions/file-changes-action
-	url = https://github.com/trilom/file-changes-action
 [submodule ".github/actions/cached-dependencies"]
 	path = .github/actions/cached-dependencies
 	url = https://github.com/apache-superset/cached-dependencies
@@ -33,9 +30,6 @@
 [submodule ".github/actions/chart-testing-action"]
 	path = .github/actions/chart-testing-action
 	url = https://github.com/helm/chart-testing-action
-[submodule ".github/actions/chart-releaser-action"]
-	path = .github/actions/chart-releaser-action
-	url = https://github.com/helm/chart-releaser-action
 [submodule ".github/actions/github-action-push-to-another-repository"]
 	path = .github/actions/github-action-push-to-another-repository
 	url = https://github.com/cpina/github-action-push-to-another-repository
@@ -31,9 +31,10 @@ repos:
            types-simplejson,
            types-python-dateutil,
            types-requests,
-            # types-redis 4.6.0.5 is failing mypy
-            # because of https://github.com/python/typeshed/pull/10531
-            types-redis==4.6.0.4,
+            # types-redis is intentionally absent: redis-py ships its own
+            # bundled types (py.typed, since 4.6+/5.x), while the stub
+            # package is unmaintained (frozen at the 4.6.0.x API surface).
+            # Installing the stub would shadow the accurate inline types.
            types-pytz,
            types-croniter,
            types-PyYAML,
@@ -61,9 +62,9 @@ repos:
        args: ["--markdown-linebreak-ext=md"]
  - repo: local
    hooks:
-      - id: prettier-frontend
-        name: prettier (frontend)
-        entry: bash -c 'cd superset-frontend && for file in "$@"; do npx prettier --write "${file#superset-frontend/}"; done'
+      - id: oxfmt-frontend
+        name: oxfmt (frontend)
+        entry: bash -c 'cd superset-frontend && files=(); for f in "$@"; do files+=("${f#superset-frontend/}"); done; npx oxfmt --write --no-error-on-unmatched-pattern -- "${files[@]}"' --
        language: system
        pass_filenames: true
        files: ^superset-frontend/.*\.(js|jsx|ts|tsx|css|scss|sass|json)$
@@ -81,6 +82,12 @@ repos:
        language: system
        pass_filenames: true
        files: ^superset-frontend/.*\.(js|jsx|ts|tsx)$
+      - id: stylelint-frontend
+        name: stylelint (frontend css-in-js)
+        entry: ./scripts/stylelint.sh
+        language: system
+        pass_filenames: true
+        files: ^superset-frontend/.*\.(js|jsx|ts|tsx)$
      - id: eslint-docs
        name: eslint (docs)
        entry: bash -c 'cd docs && FILES=$(printf "%s\n" "$@" | sed "s|^docs/||" | tr "\n" " ") && yarn eslint --fix --quiet $FILES'
@@ -137,7 +144,7 @@ repos:
              git fetch --no-recurse-submodules origin "$TARGET_BRANCH" 2>/dev/null || true
            fi
            BASE=$(git merge-base origin/"$TARGET_BRANCH" HEAD 2>/dev/null) || BASE="HEAD"
-            files=$(git diff --name-only --diff-filter=ACM "$BASE"..HEAD 2>/dev/null | grep '^superset/.*\.py$' || true)
+            files=$(git diff --name-only --diff-filter=ACM "$BASE"..HEAD 2>/dev/null | grep '^superset/.*\.py$' | grep -v '^superset/migrations/' || true)
            if [ -n "$files" ]; then
              pylint --rcfile=.pylintrc --load-plugins=superset.extensions.pylint --reports=no $files
            else
@@ -7,9 +7,9 @@
 .codecov.yml
 .eslintrc
 .eslintignore
+.stylelintignore
 .flake8
 .nvmrc
-.prettierrc
 .rat-excludes
 .swcrc
 .*log
@@ -63,7 +63,6 @@ tsconfig.tsbuildinfo
 .*yml
 .*iml
 .esprintrc
-.prettierignore
 generator-superset/*
 temporary_superset_ui/*

@@ -19,7 +19,7 @@ git commit --amend  # or new commit
 ```

 Common pre-commit failures:
- **Formatting** - black, prettier, eslint will auto-fix
+- **Formatting** - black, oxfmt, eslint will auto-fix
 - **Type errors** - mypy failures need manual fixes
 - **Linting** - ruff, pylint issues need manual fixes

@@ -263,7 +263,7 @@ git add .                        # Pre-commit only checks staged files
 # Quick validation (faster than --all-files)
 pre-commit run                   # Staged files only
 pre-commit run mypy              # Python type checking
-pre-commit run prettier          # Code formatting
+pre-commit run format            # Code formatting
 pre-commit run eslint            # Frontend linting
 ```

@@ -120,7 +120,7 @@ RUN useradd --user-group -d ${SUPERSET_HOME} -m --no-log-init --shell /bin/bash
 # Some bash scripts needed throughout the layers
 COPY --chmod=755 docker/*.sh /app/docker/

-COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
+RUN pip install --no-cache-dir --upgrade uv

 # Using uv as it's faster/simpler than pip
 RUN uv venv /app/.venv
@@ -141,7 +141,7 @@ RUN --mount=type=cache,target=/root/.cache/uv \

 COPY superset/translations/ /app/translations_mo/
 RUN if [ "${BUILD_TRANSLATIONS}" = "true" ]; then \
-        pybabel compile -d /app/translations_mo | true; \
+        pybabel compile --use-fuzzy -d /app/translations_mo || true; \
    fi; \
    rm -f /app/translations_mo/*/*/*.[po,json]

@@ -15,8 +15,8 @@
 # limitations under the License.
 #

-# Python version installed; we need 3.10-3.11
-PYTHON=`command -v python3.11 || command -v python3.10`
+# Python version installed; we need 3.11-3.12
+PYTHON=`command -v python3.11 || command -v python3.12`

 .PHONY: install superset venv pre-commit up down logs ps nuke ports open

@@ -76,7 +76,7 @@ update-js:

 venv:
 	# Create a virtual environment and activate it (recommended)
-	if ! [ -x "${PYTHON}" ]; then echo "You need Python 3.10 or 3.11 installed"; exit 1; fi
+	if ! [ -x "${PYTHON}" ]; then echo "You need Python 3.11 or 3.12 installed"; exit 1; fi
 	test -d venv || ${PYTHON} -m venv venv # setup a python3 virtualenv
 	. venv/bin/activate

@@ -95,7 +95,7 @@ py-format: pre-commit
 	pre-commit run black --all-files

 js-format:
-	cd superset-frontend; npm run prettier
+	cd superset-frontend; npm run format

 flask-app:
 	flask run -p 8088 --reload --debugger
@@ -29,7 +29,7 @@ under the License.
 [![Last Commit](https://img.shields.io/github/last-commit/apache/superset)](https://github.com/apache/superset/commits/master)
 [![Open Issues](https://img.shields.io/github/issues/apache/superset)](https://github.com/apache/superset/issues)
 [![Open PRs](https://img.shields.io/github/issues-pr/apache/superset)](https://github.com/apache/superset/pulls)
-[![Get on Slack](https://img.shields.io/badge/slack-join-orange.svg)](http://bit.ly/join-superset-slack)
+[![Get on Slack](https://img.shields.io/badge/slack-join-orange.svg)](https://bit.ly/join-superset-slack)
 [![Documentation](https://img.shields.io/badge/docs-apache.org-blue.svg)](https://superset.apache.org)

 <picture width="500">
@@ -186,7 +186,7 @@ Try out Superset's [quickstart](https://superset.apache.org/docs/quickstart/) gu
 ## Get Involved

 - Ask and answer questions on [StackOverflow](https://stackoverflow.com/questions/tagged/apache-superset) using the **apache-superset** tag
- [Join our community's Slack](http://bit.ly/join-superset-slack)
+- [Join our community's Slack](https://bit.ly/join-superset-slack)
  and please read our [Slack Community Guidelines](https://github.com/apache/superset/blob/master/CODE_OF_CONDUCT.md#slack-community-guidelines)
 - [Join our dev@superset.apache.org Mailing list](https://lists.apache.org/list.html?dev@superset.apache.org). To join, simply send an email to [dev-subscribe@superset.apache.org](mailto:dev-subscribe@superset.apache.org)
 - Follow us on social media:
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-FROM python:3.10-slim-trixie
+FROM python:3.11-slim-trixie

 RUN useradd --user-group --create-home --no-log-init --shell /bin/bash superset

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-FROM python:3.10-slim-trixie
+FROM python:3.11-slim-trixie

 RUN useradd --user-group --create-home --no-log-init --shell /bin/bash superset

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-FROM python:3.10-slim-trixie
+FROM python:3.11-slim-trixie
 ARG VERSION

 RUN git clone --depth 1 --branch ${VERSION} https://github.com/apache/superset.git /superset
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-FROM python:3.10-slim-trixie
+FROM python:3.11-slim-trixie

 RUN apt-get update -y
 RUN apt-get install -y \
@@ -423,7 +423,7 @@ git push origin ${SUPERSET_VERSION}

 ### Publishing a Convenience Release to PyPI

-Extract the release to the `/tmp` folder to build the PiPY release. Files in the `/tmp` folder will be automatically deleted by the OS.
+Extract the release to the `/tmp` folder to build the PyPI release. Files in the `/tmp` folder will be automatically deleted by the OS.

 ```bash
 mkdir -p /tmp/superset && cd /tmp/superset
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements.  See the NOTICE file
 # distributed with this work for additional information
@@ -15,8 +17,6 @@
 # specific language governing permissions and limitations
 # under the License.

-#!/bin/bash
-
 # Function to determine Python command
 get_python_command() {
    if command -v python3 &>/dev/null; then
@@ -168,6 +168,11 @@ categories:
      url: https://www.now.vn/
      contributors: ["@davidkohcw"]

+    - name: Pattern
+      url: https://www.pattern.com
+      contributors: ["@alephys26", "@hladush", "@sanketjadhavSF"]
+      logo: pattern_logo.png
+
    - name: Qunar
      url: https://www.qunar.com/
      contributors: ["@flametest"]
@@ -619,14 +624,34 @@ categories:
    - name: Symmetrics
      url: https://www.symmetrics.fyi

-  Government:
+  Government / Public authority:
+    - name: Centre Régional Auvergnat de l'Information Géographique (France)
+      url: https://www.craig.fr/
+      logo: craig.png
+
    - name: City of Ann Arbor, MI
      url: https://www.a2gov.org/
      contributors: ["@sfirke"]

+    - name: Métropole Européenne de Lille (France)
+      url: https://data.lillemetropole.fr/accueil/
+      logo: mel.jpg
+
    - name: NRLM - Sarathi, India
      url: https://pib.gov.in/PressReleasePage.aspx?PRID=1999586

+    - name: Région Bretagne (France)
+      url: https://geobretagne.fr/
+      logo: geobretagne.svg
+
+    - name: Région Hauts-de-France (France)
+      url: https://www.geo2france.fr/
+      logo: geo2france.png
+
+    - name: Rennes Métropole (France)
+      url: https://metropole.rennes.fr/
+      logo: rennes-ville-metropole_noir.svg
+
    - name: RIS3 Strategy of CZ, MIT CR
      url: https://www.ris3.cz/
      contributors: ["@RIS3CZ"]
@@ -682,6 +707,10 @@ categories:
      url: https://automattic.com/
      contributors: ["@Khrol", "@Usiel"]

+    - name: CamptoCamp
+      url: https://camptocamp.com/
+      logo: camptocamp.svg
+
    - name: Dropbox
      url: https://www.dropbox.com/
      contributors: ["@bkyryliuk"]
@@ -690,6 +719,10 @@ categories:
      url: https://flowbird.com
      contributors: ["@EmmanuelCbd"]

+    - name: geOrchestra
+      url: https://www.georchestra.org
+      logo: georchestra.svg
+
    - name: GEOTAB
      url: https://www.geotab.com
      contributors: ["@JZ6"]
@@ -706,6 +739,10 @@ categories:
      url: https://www.increff.com/
      contributors: ["@ishansinghania"]

+    - name: jDev
+      url: https://jdev.fr/
+      logo: jDev.svg
+
    - name: Let's Roam
      url: https://www.letsroam.com/

@@ -716,6 +753,11 @@ categories:
      url: https://1beat.com/
      contributors: ["@GuyAttia"]

+    - name: pi-Geosolutions
+      url: https://www.pi-geosolutions.fr/
+      logo: pi-Geosolutions.png
+      contributors: ["@jeanpommier"]
+
    - name: X
      url: https://x.com/

@@ -24,6 +24,297 @@ assists people when migrating to a new version.

 ## Next

+### Scheduled report execution now enforces one application deadline
+
+Scheduled report (not alert) executions are now governed by a single
+end-to-end deadline shared by browser readiness, capture/PDF generation,
+notification delivery, and terminal-state persistence, configured via
+`ALERT_REPORTS_EXECUTION_BUDGET_SECONDS` (with per-phase reserve settings).
+Behavior changes to be aware of:
+
+- The effective budget for a schedule is
+  `min(ALERT_REPORTS_EXECUTION_BUDGET_SECONDS, working_timeout)`. The default
+  budget (one hour) matches the historical `working_timeout` model default,
+  so default installations see no change in how long a report may run —
+  but reports now fail cleanly (with an error notification) at the deadline
+  instead of being killed silently by Celery.
+- For REPORT schedules, the Celery `soft_time_limit`/`time_limit` are now
+  derived from that same effective budget plus
+  `ALERT_REPORTS_EXECUTION_HARD_TIMEOUT_GRACE_SECONDS`, replacing the
+  previous `working_timeout + ALERT_REPORTS_WORKING_TIME_OUT_LAG` /
+  `+ ALERT_REPORTS_WORKING_SOFT_TIME_OUT_LAG` derivation. Alert schedules
+  keep the previous behavior.
+- A `working_timeout` smaller than the summed phase reserves is floored at
+  the minimum viable budget (reserves + 30s) with a warning; such reports
+  fail fast at the first phase check rather than erroring at setup.
+- Dashboard reports whose charts have not mounted are no longer captured
+  blank: readiness is polled until the deadline, and the report fails loudly
+  if charts never mount. Thumbnails and non-report screenshots keep their
+  previous behavior.
+
+### Principal listing APIs now honour related-field filters
+
+Two authorization-related listing behaviors changed for API clients. Neither
+affects the Superset UI — `include_ids` and `security/subject` have no frontend
+callers — but external clients will notice:
+
+- `GET /api/v1/<resource>/related/<column>?include_ids=...` now applies the
+  endpoint's `base_related_field_filters`. Previously the forced IDs were fetched
+  with no filtering, so a caller could resolve principals the related-field
+  filters deliberately hide; those IDs are now omitted from the response.
+- `GET /api/v1/security/subject/` now honours `EXCLUDE_USERS_FROM_LISTS` and
+  `EXTRA_RELATED_QUERY_FILTERS`, matching every other principal-listing endpoint.
+  List counts may drop, and fetching an excluded principal via
+  `GET /api/v1/security/subject/<id>` now returns `404`.
+
+### v1 chart import no longer re-adds the importer as editor on overwrite
+
+Re-importing over an existing chart (an overwrite or a soft-delete restore) no
+longer appends the importing user to the chart's `editors`, matching the
+dashboard importer's behavior. This changes anything only for a user who was not
+already an editor of that chart — typically an admin overwriting a chart they do
+not own, who was previously added as an editor as a side effect of the import.
+Newly-created charts are unaffected.
+### ClickHouse: system sampling queries retry with a bounded read
+
+System-generated sampling queries — filter-value dropdowns, the Samples
+tab/dataset preview, and datetime format detection — that ClickHouse rejects
+with a `max_rows_to_read` error (`TOO_MANY_ROWS`, code 158) are now retried
+once with `SETTINGS read_overflow_mode='break'` appended, so they return a
+partial result bounded by the operator's row cap instead of failing. The retry
+applies only to statements Superset generates for physical-table datasets;
+virtual datasets and user-authored SQL remain fully governed by configured
+read limits, and queries that already succeed are never altered. Operators who
+rely on `max_rows_to_read` as a hard failure gate for these system queries can
+restore the previous behavior per database with
+`"disable_sampling_read_limit_override": true` in the database's Extra JSON.
+Note that a retried query returns partial data with no truncation indicator
+(e.g. a filter dropdown may list only a subset of values on tables above the
+row cap).
+
+### Dashboard "Export Data to Excel" requires a Celery worker and S3 bucket
+
+A new dashboard action exports every chart's data to a single multi-sheet
+`.xlsx` asynchronously. It is disabled by default and turns on only when
+`EXCEL_EXPORT_S3_BUCKET` is set (the endpoint returns `501` otherwise). It also
+requires a running Celery worker and a configured SMTP transport, since the task
+emails the requesting user a pre-signed download link. New config keys:
+`EXCEL_EXPORT_S3_BUCKET`, `EXCEL_EXPORT_S3_KEY_PREFIX`,
+`EXCEL_EXPORT_LINK_TTL_SECONDS`, `EXCEL_EXPORT_S3_CLIENT_KWARGS`, and
+`EXCEL_EXPORT_TABLE_VIZ_TYPES`.
+
+The feature depends on `boto3`, which is **not** installed by default; install it
+with `pip install apache-superset[excel-export]`.
+
+A second mode, **Export Images to Excel**, embeds non-table charts as rendered
+images (which viz types stay tabular is controlled by
+`EXCEL_EXPORT_TABLE_VIZ_TYPES`). It renders through the headless webdriver, so the
+menu option only appears when the webdriver screenshot feature flags
+(`ENABLE_DASHBOARD_SCREENSHOT_ENDPOINTS`,
+`ENABLE_DASHBOARD_DOWNLOAD_WEBDRIVER_SCREENSHOT`) are enabled.
+
+Deployments that override `CELERY_CONFIG` must add
+`"superset.tasks.export_dashboard_excel"` to their `imports` tuple, or the task
+will not register and exports will silently never run.
+
+### SQL_QUERY_MUTATOR now honors MUTATE_AFTER_SPLIT in SQL Lab
+
+SQL Lab now applies `SQL_QUERY_MUTATOR` according to `MUTATE_AFTER_SPLIT`, matching the documented semantics and the chart/query path. This only affects deployments that define `SQL_QUERY_MUTATOR` in `superset_config.py`:
+
+- With `MUTATE_AFTER_SPLIT = True`, the mutator previously never ran in SQL Lab; it now runs on each individual statement (including on engines like BigQuery and Kusto that execute multiple statements as one block, where each statement is mutated before the statements are joined).
+- With `MUTATE_AFTER_SPLIT = False` (the default), multi-statement SQL Lab queries previously applied the mutator to each statement separately; the mutator now runs once on the whole un-split query, as documented. Single-statement queries are unaffected.
+- With `MUTATE_AFTER_SPLIT = False` on engines that execute statements individually, the mutator's output is re-parsed to split it into statements. A mutator that emits SQL Superset's parser cannot parse will now fail with a clear parse error before execution, and one that strips a query down to nothing raises an invalid-SQL error instead of executing an empty query.
+
+### Python 3.10 support removed
+
+Python 3.10 is no longer supported. Superset now requires **Python 3.11 or higher**.
+Update your environment (virtualenv, Docker base image, CI configuration, etc.) to
+Python 3.11+ before upgrading. The `apache/superset-cache:3.10-slim-trixie` and
+`py310` Docker image variants are no longer published.
+
+### `from_dttm` and `to_dttm` Jinja template variables removed
+
+The `{{ from_dttm }}` and `{{ to_dttm }}` Jinja template variables, deprecated since
+v5.0, have been removed from the Jinja context and are no longer available in virtual
+dataset SQL or custom SQL expressions.
+
+Replace usages with the `get_time_filter()` function. For example:
+
+```sql
+-- Before
+SELECT * FROM tbl
+WHERE dttm_col > '{{ from_dttm }}' AND dttm_col < '{{ to_dttm }}'
+
+-- After
+{% set tf = get_time_filter("dttm_col") %}
+SELECT * FROM tbl
+WHERE dttm_col > {{ tf.from_expr }} AND dttm_col <= {{ tf.to_expr }}
+```
+
+Note that `from_expr` and `to_expr` are already fully-formatted SQL expressions (e.g.
+`TO_TIMESTAMP('2024-01-01', ...)`) — do not wrap them in single quotes.
+
+### Removed deck.gl JavaScript tooltip/data-mutator controls and ENABLE_JAVASCRIPT_CONTROLS
+
+The `ENABLE_JAVASCRIPT_CONTROLS` feature flag and the deck.gl chart controls it gated
+(`js_tooltip`, `js_onclick_href`, `js_data_mutator`, and the GeoJSON layer's label/icon
+JavaScript-mode generators) have been removed. These controls let users write arbitrary
+JavaScript, sandboxed via Node's `vm` module, to customize deck.gl tooltips, click
+behavior, and data transforms; the flag defaulted off and the feature saw negligible use.
+
+The deck.gl "Extra data for JS" control (`js_columns`) has also been removed. It only
+ever existed to feed extra columns into the JavaScript controls above; deck.gl's
+built-in field-based tooltips and cross-filtering already pull in any columns they need
+via `tooltip_contents`/`cross_filter_column`, so this control had no remaining purpose.
+Any chart layer whose "Advanced" control panel section only contained this control no
+longer has an "Advanced" section.
+
+Any saved charts with these fields set will simply ignore them going forward and fall back
+to deck.gl's built-in field-based tooltips (`tooltip_contents`/`tooltip_template`) and
+native click/cross-filter behavior. No migration is required; the fields are dropped
+silently on next save.
+
+### Owners, dashboard roles, and RLS roles replaced by Subjects
+
+Superset now uses subject-based access assignments for dashboards, charts, datasets,
+alerts/reports, and Row Level Security. A Subject can represent a user, role, or group.
+
+This is a breaking API and metadata change:
+
+- `owners` is replaced by `editors` for dashboards, charts, datasets, and alerts/reports.
+- Dashboard `roles` and the `DASHBOARD_RBAC` feature flag are replaced by dashboard/chart
+  `viewers`, enabled with `ENABLE_VIEWERS`.
+- RLS `roles` is replaced by `subjects`.
+- The legacy `dashboard_user`, `slice_user`, `sqlatable_user`, `report_schedule_user`,
+  `dashboard_roles`, and `rls_filter_roles` tables are migrated into subject junction tables
+  and dropped on upgrade.
+
+For deployments that previously used `DASHBOARD_RBAC` and later disabled it: remove stale rows
+from the legacy `dashboard_roles` table before upgrading, otherwise those role assignments will
+become active dashboard Viewers after migration.
+
+API clients and automation should send and read `editors`, `viewers`, and `subjects` instead
+of the legacy fields.
+
+Subject pickers support users, groups, and roles, but only users and groups are selectable by
+default. Roles remain supported as Subject types for backwards compatibility with RLS role
+assignments and the previous `DASHBOARD_RBAC` model, but they are not recommended for new
+resource-specific assignments. Prefer groups for membership-based access and keep roles focused
+on capability grants. Existing Role subject assignments remain effective after migration even when
+Roles are hidden from the default dropdown values; configure the relevant `SUBJECTS_RELATED_TYPES_*`
+setting to make Roles selectable when editing subject lists. See the [Security documentation](docs/admin_docs/security/security.mdx#subjects)
+for the full Subject model and picker configuration guidance.
+
+To make roles selectable everywhere:
+
+```python
+from superset.subjects.types import SubjectType
+
+SUBJECTS_RELATED_TYPES = [
+    SubjectType.USER,
+    SubjectType.GROUP,
+    SubjectType.ROLE,
+]
+```
+
+To make roles selectable for RLS while other pickers keep the user and group default, use the
+RLS-specific override:
+
+```python
+from superset.subjects.types import SubjectType
+
+SUBJECTS_RELATED_TYPES_RLS = [
+    SubjectType.USER,
+    SubjectType.GROUP,
+    SubjectType.ROLE,
+]
+```
+
+Entity-specific `SUBJECTS_RELATED_TYPES_*` settings replace `SUBJECTS_RELATED_TYPES` for that
+picker.
+
+Deployments using `EXTRA_OWNERS_RESOLVER` must migrate to `EXTRA_EDITORS_RESOLVER`. The new
+resolver should return editor Subjects, subject IDs, or dicts with an `id` key instead of FAB
+User objects. API responses expose these dynamic assignments as `extra_editors` instead of
+`extra_owners`.
+
+`DASHBOARD_RBAC` has been removed. To preserve the previous Dashboard RBAC behavior, enable both
+subject viewers and viewer datasource bypass:
+
+```python
+FEATURE_FLAGS = {
+    "ENABLE_VIEWERS": True,
+}
+VIEWER_PROMISCUOUS_MODE = True
+```
+
+Enabling only `ENABLE_VIEWERS` allows assigning dashboard/chart viewer subjects, but viewers still
+need normal datasource permissions unless `VIEWER_PROMISCUOUS_MODE` is also enabled.
+
+For backwards compatibility, enabling `ENABLE_VIEWERS` does not change access for dashboards or
+charts that have no assigned viewers. Those resources continue to use the implicit dataset-access
+model: users who can access the underlying dataset can still see published dashboards that use that
+dataset and charts backed by that dataset.
+Assigning one or more viewers opts that resource into explicit viewer access for non-editors. To
+return a resource to the implicit dataset-access model, remove all viewers from it. Explicit Viewers
+are the intended model going forward; deprecating and removing implicit viewership can be considered
+in a later major version.
+
+- [41044](https://github.com/apache/superset/issues/41044): Removes the deprecated `AVOID_COLORS_COLLISION` feature flag (it defaulted to `True`). Color-collision avoidance is now permanently enabled; any config override setting it to `False` is ignored.
+
+- [41813](https://github.com/apache/superset/pull/41813): `redis` (the Python client, `redis-py`) is bumped from 5.3.1 to 8.0.1. redis-py 8 changes several connection defaults; Superset's own Redis-backed features (`GLOBAL_ASYNC_QUERIES_CACHE_BACKEND`, `DISTRIBUTED_COORDINATION_CONFIG`, and the MCP Redis store) explicitly pin the pre-upgrade behavior so this bump is a no-op for them: the wire protocol stays RESP2 (not the new RESP3 default, which requires Redis/Sentinel 6+ to speak `HELLO`) and there is still no socket timeout by default (redis-py 8 defaults to 5s, which could otherwise newly time out large cached payloads or slow networks). The no-timeout default can now be overridden via two new config keys, `CACHE_REDIS_SOCKET_TIMEOUT` / `CACHE_REDIS_SOCKET_CONNECT_TIMEOUT`, on any `CacheConfig` dict using `CACHE_TYPE: RedisCache` or `RedisSentinelCache`. Separately, redis-py 6+ changed the default for `ssl_check_hostname` from `False` to `True` for SSL connections using `ssl_cert_reqs="required"` (the default) — this is a security improvement, so it has **not** been reverted; deployments with `CACHE_REDIS_SSL=True` whose certificates lack a hostname matching the connection address should set `CACHE_REDIS_SSL_CERT_REQS="none"` (disables cert verification entirely, matching hostname-check bypass) or replace the certificate. General-purpose cache/results backends configured via `CACHE_CONFIG` / `DATA_CACHE_CONFIG` / `RESULTS_BACKEND` with `CACHE_TYPE: RedisCache` go through `flask-caching`'s own Redis backend (outside Superset's code) and are subject to the same new defaults; pass `socket_timeout` / `protocol` via `CACHE_OPTIONS` there if needed. Celery broker and result-backend connections (built by `kombu`, also outside Superset's code) keep their no-socket-timeout behavior (`kombu` passes `socket_timeout=None` explicitly) but do **not** pin the wire protocol, so they follow redis-py's RESP3 default — which requires a Redis server new enough to speak `HELLO` (Redis 6+). Deployments using a pre-6.0 Redis server (EOL) as a Celery broker should upgrade the server before taking this bump.
+
+- [39925](https://github.com/apache/superset/pull/39925): URL prefixing for `SUPERSET_APP_ROOT` subdirectory deployments is now handled automatically by helpers in `src/utils/navigationUtils` (`openInNewTab`, `redirect`, `getShareableUrl`, `<AppLink>`). Direct imports of `ensureAppRoot` / `makeUrl` from `src/utils/pathUtils` are forbidden outside `navigationUtils.ts` (enforced by a static-invariant test); contributors writing new code should use the focused helpers instead. No runtime behaviour change for existing callers — all 19 prior call sites have been migrated and four pre-existing double-prefix and missing-prefix bugs are fixed as part of the migration.
+
+- [39925](https://github.com/apache/superset/pull/39925): `SupersetClient.getUrl()` now strips a single leading application-root segment from the supplied `endpoint` before building the request URL, so a caller that accidentally pre-prefixes its endpoint (for example by wrapping it with `ensureAppRoot` before passing it to the client) no longer produces a doubled `/superset/superset/...` URL under subdirectory deployment. The strip is **single-pass** — a genuine `/superset/superset/<slug>` route is preserved, not collapsed — and **silent** (no console warning); the static-invariant test remains the primary signal for pre-prefixing at the call site, and this runtime strip is a safety net beneath it. Code that intentionally targeted a literal `/<app_root>/<app_root>/...` endpoint through `getUrl` (a configuration that has no legitimate use under the prefixing model) would have its first redundant segment removed.
+
+- **Breaking — `Superset` view class route prefix removed.** The `Superset` view in `superset/views/core.py` now declares `route_base = ""`, overriding Flask-AppBuilder's auto-derived `/superset` prefix. Routes that previously lived at `/superset/welcome/`, `/superset/dashboard/<id>/`, `/superset/dashboard/p/<key>/`, `/superset/explore/`, etc. now respond at `/welcome/`, `/dashboard/<id>/`, `/dashboard/p/<key>/`, `/explore/`, etc. Under subdirectory deployment (`SUPERSET_APP_ROOT=/superset`) the URLs are unchanged from end-user perspective — `AppRootMiddleware` re-applies the prefix via `SCRIPT_NAME`. Under root deployments, any external integration or bookmark that hard-codes `/superset/<endpoint>/` paths must be updated to drop the prefix. This fixes the doubled `/superset/superset/...` URLs that `url_for` emitted for these endpoints under subdirectory deployment and the related 404s on the routes themselves.
+
+- **Breaking — Three sibling view classes route prefix removed.** Following the same rationale as the `Superset` class above, `ExplorePermalinkView` (`superset/views/explore.py`), `TagModelView`, and `TaggedObjectsModelView` (`superset/views/tags.py`, `superset/views/all_entities.py`) now mount at the application root rather than a hard-coded `/superset/...`. The user-visible URLs `/superset/explore/p/<key>/`, `/superset/tags/`, and `/superset/all_entities/` are unchanged under subdirectory deployment; under root deployments these views now serve `/explore/p/<key>/`, `/tags/`, and `/all_entities/`, so any external integration or bookmark must drop the `/superset/` prefix. `Dashboard.url` and `Dashboard.get_url` likewise return `/dashboard/<id>/` instead of the prior `/superset/dashboard/<id>/` literal so downstream consumers (DashboardList row hrefs, MCP service `dashboard_url`) emit a single, deployment-correct prefix.
+
+- **Legacy `/superset/*` path support.** A new outermost WSGI middleware `LegacyPrefixRedirectMiddleware` (`superset/middleware/legacy_prefix_redirect.py`) 308-redirects every enumerated legacy `/superset/<canonical>` path to its post-`route_base=""` canonical location (e.g. `/superset/welcome/` → `/welcome/` under root; → `/superset/welcome/` under `SUPERSET_APP_ROOT=/superset`, because the canonical resolves through `AppRootMiddleware`). Bookmarks, email links, and external integrations survive the route-base collapse for one release cycle. POST against a GET-only canonical returns 410 Gone instead of 308 (308 would 405 on retry). The shim is removed at EOL `5.0.0`, matching the `@deprecated(eol_version="5.0.0")` gate on `Superset.explore` and `Superset.explore_json`.
+
+- **PWA web app manifest served dynamically.** The PWA manifest is now served at `/pwa-manifest.json` (under `APPLICATION_ROOT`) by a new `PwaManifestView` (`superset/views/pwa_manifest.py`) instead of the static file at `/static/assets/pwa-manifest.json`. The legacy static source at `superset-frontend/src/pwa-manifest.json` has been removed (along with its `webpack.config.js` `CopyPlugin` rule). The new endpoint resolves `APPLICATION_ROOT` and `STATIC_ASSETS_PREFIX` at request time so PWA install works under subdirectory deployments and split static-prefix / app-root deployments (where `STATIC_ASSETS_PREFIX` points to a CDN host while the Superset backend stays under `APPLICATION_ROOT`). The `<link rel="manifest">` href in `superset/templates/superset/spa.html` was updated correspondingly (using a new `application_root_rstrip` template global). Operators with a forked `spa.html` should switch any manifest `<link>` to `{{ application_root_rstrip }}/pwa-manifest.json`.
+
+- **Hard re-bookmark break — `/superset/sql/<database_id>/`.** SQL Lab moved to its own blueprint at `/sqllab/`. The legacy `/superset/sql/<id>/` shape changed to a query-string form (`/sqllab/?dbid=<id>`); no 1:1 path mapping exists, so `LegacyPrefixRedirectMiddleware` does **not** redirect this route — it passes through and surfaces a 404. Users with bookmarks to `/superset/sql/<id>/` must update them to `/sqllab/?dbid=<id>`.
+
+- **`SqlaTable.sql_url` query-string format.** `SqlaTable.sql_url` now URL-encodes `table_name` and joins it as a query parameter rather than concatenating a second `?`. Previously, with `Database.sql_url` returning `/sqllab/?dbid=<id>`, the concatenation produced `/sqllab/?dbid=<id>?table_name=<raw>` — a malformed second `?` that broke the query parser. External code that parsed the legacy `<base>?table_name=<raw>` shape now sees properly percent-encoded values (e.g. `/` → `%2F`, ` ` → `+` or `%20`); decode with `urllib.parse.parse_qsl`.
+
+- **New config flag `EMBEDDED_DISABLE_PERMALINK_ORIGIN_REWRITE` (default `False`).** Share/permalink URLs now substitute `window.location.origin` for the backend-supplied origin so a proxied or subdirectory-deployed Superset never hands the user an unreachable internal hostname. Operators whose reverse proxy correctly forwards `X-Forwarded-Host` *and* who want permalinks to carry the backend's literal origin can opt out by setting `EMBEDDED_DISABLE_PERMALINK_ORIGIN_REWRITE = True` in `superset_config.py`. Default `False` (rewrite is on); flipping the default would regress the dominant proxied/subdir deployment to an unreachable host.
+
+- [41651](https://github.com/apache/superset/pull/41651): **New do-not-translate standard for translation catalogs.** Strings that must stay identical to the source — icon names (e.g. `bolt`), enum/option values (`step-after`), SQL keywords, API field names (`error_message`), code constants, and example placeholders — are now marked with a `#. do-not-translate` extracted comment. The list lives in the `superset/translations/do-not-translate.txt` registry; `scripts/translations/apply_do_not_translate.py` stamps the marker onto `messages.pot` during `babel_update.sh`, and `pybabel update` propagates it to every `.po`, so the status is consistent across all languages. The AI backfill (`backfill_po.py`) and translators leave these entries untranslated (source fallback). The legacy per-catalog convention (a `# Не переводить` translator comment in the `ru` catalog) is still honored for back-compat but is superseded by this standard; contributors adding new machine-read strings should add the msgid to the registry rather than annotating individual catalogs.
+
+### SQL Lab denies large-object and information_schema access by default
+
+`DISALLOWED_SQL_FUNCTIONS` and `DISALLOWED_SQL_TABLES` now ship with additional default entries, so SQL Lab and chart-data queries that reference them are rejected where they were previously allowed:
+
+- PostgreSQL large-object routines (`lo_from_bytea`, `lo_export`, `lo_import`, `lo_put`, `lo_create`, `lo_creat`, `lowrite`, `lo_get`, `loread`, `lo_unlink`), which read and write bytes on the database server's filesystem.
+- The SQL-standard `information_schema` views (`tables`, `columns`, `routines`, `views`, the privilege/grant views, etc.), which expose table, column, privilege, and view-definition metadata across the whole database.
+
+Deployments that legitimately query these (for example tooling that introspects `information_schema`) can restore the previous behavior by overriding `DISALLOWED_SQL_FUNCTIONS` / `DISALLOWED_SQL_TABLES` in `superset_config.py` to drop the entries they need.
+
+Because the denylist now resolves the effective schema through the query-aware path, PostgreSQL queries that change the `search_path` (e.g. `SET search_path = ...`) are rejected on the SQL Lab execution and cost-estimate paths whenever any `DISALLOWED_SQL_TABLES` entry is configured (the default for PostgreSQL), matching the behavior previously applied only when `RLS_IN_SQLLAB` was enabled.
+
+### SQL parser input length cap (SQL_MAX_PARSE_LENGTH)
+
+The SQL parser now rejects scripts whose UTF-8 byte length exceeds the new
+`SQL_MAX_PARSE_LENGTH` config option (default `1_000_000` bytes) before they are
+handed to sqlglot, which bounds parser memory and CPU usage. A single query
+larger than the cap (for example a very large `IN (...)` list or a big
+virtual-dataset SQL) raises a parse error in SQL Lab and dashboard-generated
+queries. Deployments that legitimately run queries above this size should raise
+the value, and `SQL_MAX_PARSE_LENGTH = None` disables the check entirely.
+
+### Ant Design upgraded from v5 to v6
+
+The frontend now builds against Ant Design 6, and `@superset-ui/core` / `@apache-superset/core` peer-depend on `antd ^6`. Custom plugins, extensions, and themes that interact with Ant Design need review:
+
+- **Internal DOM classes were renamed**, so any custom CSS targeting `.ant-*` internals silently stops matching. Notable renames: `.ant-tabs-content-holder` → `.ant-tabs-body-holder`, `.ant-tabs-content` → `.ant-tabs-body`, `.ant-tabs-tabpane` → `.ant-tabs-content`; `.ant-select-selector` → `.ant-select-content`, `.ant-select-selection-placeholder` → `.ant-select-placeholder`, `.ant-select-arrow` → `.ant-select-suffix`; `.ant-tooltip-inner` → `.ant-tooltip-container`; `.ant-popover-inner` → `.ant-popover-container`; `.ant-steps-item-tail` → `.ant-steps-item-rail`.
+- **Some component props changed or were removed** — e.g. `Select` no longer accepts `dropdownAlign`, `visible`/`onVisibleChange` are `open`/`onOpenChange`, `Dropdown` `overlay` is `menu`, `Steps.Step` children are the `items` prop, and `styles.body` on Tooltip/Popover is `styles.container`.
+- **CSS variables are on by default** in antd 6, and `ThemeConfig.cssVar` no longer accepts a boolean; Superset theme configs using `cssVar: true`/`false` are coerced (`true` → `{}`, `false` → omitted).
+
+Theme tokens are unaffected — antd 6 removed none of the tokens Superset exposes, so existing theme configurations continue to work. See the [Ant Design v6 migration guide](https://ant.design/docs/react/migration-v6) for the complete upstream list.
+
 ### Guest-token RLS rules reject unknown fields

 The `rls` rules passed to `POST /api/v1/security/guest_token/` are now validated strictly: a rule may only contain `dataset` and `clause`. Previously unknown fields were silently dropped, so a mistyped or legacy scope key (most commonly `datasource` instead of `dataset`) produced a rule with no `dataset`, which is treated as a *global* rule applied to every dataset the embedded resource can reach. Such a request now returns HTTP 400 identifying the offending field instead of issuing a token with an unintended global rule. Integrators that were sending extra fields in RLS rules must remove them; valid dataset-scoped (`{"dataset": 41, "clause": "..."}`) and global (`{"clause": "..."}`) rules are unaffected.
@@ -40,10 +331,61 @@ When the MCP service has JWT auth enabled (`MCP_AUTH_ENABLED = True`), an audien

 The git SHA and build number surfaced in the "About" section, the bootstrap payload, and the public `/version` endpoint are now only included for admin users by default; the release version string is still shown to everyone. To expose the build details to all users (the previous behavior), set the `SUPERSET_EXPOSE_BUILD_DETAILS` environment variable (or `EXPOSE_BUILD_DETAILS_TO_USERS = True` in `superset_config.py`).

+### Helm chart adopts Kubernetes recommended labels (breaking upgrade)
+
+The Helm chart now labels and selects workloads using the [Kubernetes recommended labels](https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/) (`app.kubernetes.io/*`) instead of the legacy `app`/`release` labels. Because a Deployment's `spec.selector.matchLabels` is immutable, `helm upgrade` against an existing release will fail with a `field is immutable` error.
+
+To upgrade, delete the affected workloads (which selector labels changed) before upgrading, then run the upgrade so they are recreated with the new labels:
+
+```bash
+kubectl delete deployment,statefulset -l release=<release-name> -n <namespace>
+helm upgrade <release-name> superset/superset
+```
+
+Alternatively, perform a fresh install. This is a one-time migration; subsequent upgrades are unaffected.
+
+### Time-series tooltips follow the selected time grain
+
+Tooltips on the Time-series and Mixed Time-series ECharts plugins now respect the chart's time grain (and any dashboard-level time-grain override delivered via `extra_form_data`) when the tooltip time format is left on Adaptive formatting (the default). Tooltips read grain-appropriate labels such as `Jan 2021` (month), `2021 Q1` (quarter), `2021` (year), and weekly date ranges, becoming grain-aware like the x-axis, though the two are formatted independently and their labels may not always match exactly. Only a custom, explicitly-set tooltip time format (a d3 format string) is unaffected — that always wins over the grain.
+
 ### Pivot table First/Last aggregations follow data order

 The pivot table chart's `First` and `Last` aggregations now return the first and last value in data (query result) order, instead of effectively returning the minimum and maximum. Existing pivot tables that use these aggregations for totals/subtotals may show different values after upgrading. For deterministic results, ensure the underlying query has a stable sort order.

+### `FetchRetryOptions` callback parameters widened to allow `null`
+
+The `error` and `response` parameters of the `retryDelay` and `retryOn` callbacks in `FetchRetryOptions` (exported from `@superset-ui/core`) are now typed `Error | null` and `Response | null` to match the actual call-site signature provided by `fetch-retry`. Because these parameter types are contravariant, consumers who typed their callbacks with the non-nullable `(attempt: number, error: Error, response: Response) => number` will get a TypeScript compile error. Widen your callback signatures to accept `Error | null` / `Response | null`.
+
+### Pivot Table totals are now computed by the database (per-metric "Aggregation function" control removed)
+
+Pivot Table subtotals and grand totals are now computed by the database at each
+rollup level instead of re-aggregating the already-aggregated cell values on the
+client. This fixes long-standing incorrect totals for non-additive metrics
+(ratios such as `SUM(a)/SUM(b)`, `COUNT_DISTINCT`, `AVG`, percentiles, etc.),
+which previously summed the displayed cell values.
+
+As a result the per-table **"Aggregation function"** control (which let you pick
+how totals were aggregated client-side, e.g. Sum/Average/Count) has been
+removed: totals now always reflect the metric's own definition evaluated at the
+total's granularity. For additive metrics (`SUM`/`COUNT`/`MIN`/`MAX`) the result
+is unchanged. If you previously relied on a plain sum-of-cells total for a
+non-additive metric, that specific behavior is no longer available.
+
+The "Sum as Fraction of Total/Rows/Columns" display options are back as a
+new, standalone **"Show values as"** control (below "Combine metrics" in the
+Options panel), since those were mathematically correct even before this
+change and are unrelated to the totals-correctness fix. A DB migration
+derives the new field from any still-present `aggregateFunction` Sum-fraction
+value, so a chart that had one of those options configured picks the
+equivalent "Show values as" setting back up automatically. The "Count as
+Fraction of ..." variants are **not** migrated: they divided a record count,
+while the new control divides the metric's own value, so translating them
+automatically would silently change what the chart displays rather than
+restore it; those charts need to be manually reconfigured if the value-based
+percentage is what's wanted. Charts that used any other non-fraction
+`aggregateFunction` value (Sum, Average, Count, ...) are unaffected, since
+that specific behavior remains unavailable per the above.
+
 ### `thumbnail_url` removed from dashboard list API response

 The `thumbnail_url` field has been removed from `GET /api/v1/dashboard/` list responses. External consumers relying on this field must now construct the thumbnail URL client-side using `id` and `changed_on_utc`:
@@ -54,6 +396,12 @@ The `thumbnail_url` field has been removed from `GET /api/v1/dashboard/` list re

 The thumbnail endpoint redirects to the current digest URL regardless of whether the supplied digest is exact. If the image is not yet cached, that digest URL may return `202` and trigger async generation. Using `changed_on_utc` as the digest is sufficient for cache-busting purposes.

+### Dashboard import can overwrite related charts, datasets, and databases
+
+Re-importing an existing dashboard previously overwrote only the dashboard itself; its related charts, datasets, and databases were never updated (the importer hardcoded `overwrite=False` for them). They can now be overwritten as part of the import.
+
+A new `overwrite_all` form field controls this, and defaults to `false` everywhere, so existing behavior is preserved: passing `overwrite=true` alone still overwrites only the dashboard, exactly as before. To also overwrite the related charts, datasets, and databases on the `/api/v1/dashboard/import/` endpoint, pass `overwrite_all=true` explicitly. The import modal in the UI exposes this as an "also overwrite all assets" checkbox, and the CLI `superset import-dashboards` and the `ImportDashboardsCommand` likewise default `overwrite_all` to `false`.
+
 ### Tagging fix for `create_all`-bootstrapped schemas

 Only affects deployments whose metadata schema was created with SQLAlchemy's `create_all` (rather than `superset db upgrade`) on a foreign-key-enforcing backend — PostgreSQL, or MySQL with `FOREIGN_KEY_CHECKS=1`. Such schemas carry three invalid foreign keys on `tagged_object.object_id` that break tagging (`TAGGING_SYSTEM = True`) with a `ForeignKeyViolation`. Schemas built via `superset db upgrade` are unaffected.
@@ -67,6 +415,63 @@ ALTER TABLE tagged_object DROP CONSTRAINT <constraint_name>;
 -- MySQL: find names via `SHOW CREATE TABLE tagged_object;`
 ALTER TABLE tagged_object DROP FOREIGN KEY <constraint_name>;
 ```
+### Entity version-history infrastructure (gated off by default)
+
+Introduces the schema and SQLAlchemy-Continuum wiring that captures version history for charts, dashboards, and datasets, plus read-only `GET /api/v1/{chart,dashboard,dataset}/<uuid>/versions/` endpoints. This ships **inert**: a new config flag `ENABLE_VERSIONING_CAPTURE` defaults to `False`, so no save writes any version rows and the endpoints return empty. It is an operational kill-switch (a release toggle that becomes a permanent ops switch), not a feature flag — set it to `True` to enable capture once validated. The migration is additive; existing entity `PUT` responses gain `old_version_uuid` / `new_version_uuid` body fields and an `ETag` header (both null/absent when capture is off).
+
+A few save- and import-path internals change **unconditionally** (independent of the flag), because the versioned mappers must behave correctly whether or not capture is enabled:
+
+- `DatasetDAO` column/metric updates move from bulk operations to per-row ORM operations, and a metadata refresh now preserves column primary keys via a natural-key (`column_name`) upsert instead of delete-and-reinsert — so charts that reference dataset columns by id keep working across a refresh (previously such references could be invalidated).
+- `ImportExportMixin.reset_ownership` stamps the current user onto `created_by`/`changed_by` when a request context is present (previously left null for the column default to fill).
+- `UpdateDashboardCommand` runs its body under `no_autoflush`.
+
+These are behavior changes that take effect on upgrade regardless of `ENABLE_VERSIONING_CAPTURE`; no operator action is required.
+
+### Cross-entity version activity stream
+
+A read-only companion to the version-history endpoints: each entity type gains a `GET /api/v1/{chart,dashboard,dataset}/<uuid>/activity/` endpoint returning a chronological, access-filtered stream of edits — the entity's own edits plus, for charts and dashboards, transitive edits to related entities during their association windows. Datasets have no related layer in V2, so `include=related` returns an empty stream for a dataset and `include=all` reduces to the dataset's own edits.
+
+| Param | Type | Default | Purpose |
+|---|---|---|---|
+| `since` / `until` | ISO 8601 | — | Bound `issued_at` |
+| `include` | `self` \| `related` \| `all` | `all` | Own edits, related edits, or both |
+| `q` | string | — | Case-insensitive search over the full history, applied before pagination (so `count` reflects matches) |
+| `page` / `page_size` | integer | `0` / `25` | Pagination (`page_size` clamped to 200) |
+
+Authorization reuses the resource's `can_read` permission and per-object `raise_for_access`; related-entity rows are visibility-filtered to what the caller may see. The stream is empty unless version capture is on (`ENABLE_VERSIONING_CAPTURE`).
+
+### Version-history retention (pruning)
+
+Entity version history (the `version_transaction` / `*_version` shadow tables that back version capture) is aged out by a nightly Celery beat task, `version_history.prune_old_versions` (`superset.tasks.version_history_retention`).
+
+| Key | Default | Purpose |
+|---|---|---|
+| `SUPERSET_VERSION_HISTORY_RETENTION_DAYS` | `30` | Version rows whose owning `version_transaction.issued_at` is older than this many days are pruned. Each entity's live row (`end_transaction_id IS NULL`) is always preserved, as are the live rows of its children and associations; closed historical rows (including the baseline) age out. Set to `0` or a negative value to disable pruning. |
+
+The task ships in the default `CeleryConfig` (both the `superset.tasks.version_history_retention` import and the beat entry). A deployment that overrides `CELERY_CONFIG` without the beat entry logs a startup warning. When the override explicitly defines `imports`, a missing retention module is also reported; an absent `imports` setting is not diagnosed because Celery may register tasks through `include`, autodiscovery, or worker startup imports. Retention only prunes whatever history exists — capture itself is gated separately by `ENABLE_VERSIONING_CAPTURE` (ships off).
+
+### Deletion retention (soft-deleted entities are eventually purged)
+
+Soft-deleted dashboards, charts, and datasets are now permanently removed after a retention window (default 30 days; `SOFT_DELETE_RETENTION_DAYS`, `0` disables; settable per workspace at runtime via the `deletion-retention set-window` CLI, which takes precedence). The `deletion_retention.purge_soft_deleted` Celery beat task runs daily and removes each aged-out entity together with its M:N join rows, owned children, datasource permission, and version-history shadow rows. After purge an entity is **unrecoverable** — its detail and `/restore` endpoints return 404 and its version history is gone.
+
+The introducing release **defaults to dry-run** (`SOFT_DELETE_PURGE_DRY_RUN=True`): the task logs `would_purge` counts but deletes nothing, so operators can validate against production before activating real purging by setting it to `False`. Note `would_purge` is an **upper bound** — it counts every entity past the retention window without evaluating deletion blockers, so a real run may purge fewer (entities referenced by report schedules or set as a user's welcome dashboard are blocked and reported separately). The task only acts while the temporary `SOFT_DELETE` rollout flag is on.
+
+Deployments that replace the default `CELERY_CONFIG` must ensure workers register `superset.tasks.deletion_retention` and schedule the `deletion_retention.purge_soft_deleted` task themselves. The shipped Docker development config uses `imports` and includes both entries. While `SOFT_DELETE` is statically enabled, a missing beat entry logs a startup warning; when the override explicitly defines `imports`, a missing purge module is also reported.
+
+Operators can immediately erase a specific entity for compliance (GDPR) via `superset deletion-retention force-purge --uuid <uuid>`; this applies legacy hard-delete semantics — a live chart referencing a force-purged dataset is left without a datasource until re-pointed (the chart is not modified), and it purges the named entity even when it was never soft-deleted. Every purge writes an immutable, content-free audit record to the new `purge_audit_log` table that survives the entity it names: the **scheduled** purge fails closed (an entity whose audit row cannot be written is skipped and retried next run), while **force-purge** proceeds even if the audit write fails — the operator is present and deletion outranks audit for a compliance erasure.
+
+### Recently Archived view and permanent delete (purge) endpoints
+
+Behind the same `SOFT_DELETE` flag, a **Recently Archived** page (Settings menu, `/archived/`) lists soft-deleted charts, dashboards, and datasets with their archive time and archiving user, and offers **Recover** and **Delete permanently** row actions. The page admits any viewer holding `can_read` on **any** of the three types and offers each viewer only the types they can read; a viewer with none of the three sees an explanatory empty state, and unauthenticated requests are redirected to login.
+
+**New endpoints** — `POST /api/v1/{chart,dashboard,dataset}/<uuid>/purge` permanently delete a single **soft-deleted** row, running the same cascade as the retention task. Irreversible. Requires `can_write` on the entity plus editorship of the row (or admin), mirroring `/restore`. The endpoints answer 404 while `SOFT_DELETE` is off (restore deliberately stays live so rows archived before a flag-off remain recoverable), 404 for rows that are not soft-deleted, and 422 with a reason when the purge is blocked (an alert/report references the entity, a user has the dashboard as their welcome page, or a restrictive foreign key intervenes). A purge that cannot write its audit record is refused with 422 rather than executed unrecorded — unlike the operator CLI, an end user's purge never outranks the audit.
+
+With the flag on, delete confirmations across the chart/dashboard/dataset list pages change shape: a recoverable archive is confirmed with a primary **Archive** button and no type-DELETE friction, and the copy states the retention window when one is configured. A bulk dataset selection that includes semantic views keeps the full danger treatment, because semantic views have no soft-delete — they are deleted permanently and the confirmation says so.
+
+This also resolves the limitation noted under *Soft delete and restore for datasets*: a database blocked by soft-deleted datasets can now be freed by purging those datasets (per-entity endpoint, retention task, or `force-purge` CLI) instead of hard-deleting `tables` rows out-of-band.
+
+The `purge_audit_log` table is **never pruned by design** — the audit must survive the entities it names; operators who need to age it out should prune manually.
+

 ### Webhook alerts/reports block private/internal hosts by default

@@ -77,6 +482,7 @@ Deployments that intentionally point webhooks at internal targets (chatops bridg
 ### Impala cancel_query blocks private/internal hosts by default

 The Impala engine spec's `cancel_query` issues an HTTP request from the Superset backend to the host configured on the Impala database connection. That host is now validated before the request: if it resolves to a private/internal IP range, the cancel call is refused and a warning is logged. Operators whose Impala cluster runs on an internal network can opt out by setting `IMPALA_CANCEL_QUERY_ALLOW_INTERNAL_HOSTS = True` in `superset_config.py`. This mirrors the dataset-import and webhook opt-out flags.
+
 ### Map chart renderer and OpenStreetMap migration behavior

 The MapLibre migration for deck.gl charts preserves saved non-Mapbox styles on
@@ -114,6 +520,11 @@ Operators can tune or disable the policy via config:
 ### Data uploads bounded by UPLOAD_MAX_FILE_SIZE_BYTES

 Single data-file uploads (CSV, Excel, columnar) are now bounded by the `UPLOAD_MAX_FILE_SIZE_BYTES` config option, which defaults to `100 * 1024 * 1024` (100 MB). Files larger than this are rejected with a `413` before their contents are buffered into memory. Set `UPLOAD_MAX_FILE_SIZE_BYTES = None` to disable the check and restore unbounded uploads.
+### Currency symbol position follows the locale when unset
+
+When a chart's currency control leaves the **Prefix or suffix** field empty, the currency symbol position is now derived from the deployment locale's own convention via `Intl.NumberFormat` instead of always defaulting to a suffix. For example, under the default `en-US` locale `USD`, `GBP`, and `EUR` render as a prefix (`$ 1,000`), while eurozone locales such as `fr-FR` render `EUR` as a suffix (`1 000 €`). An explicit Prefix/Suffix selection is always honored and is unaffected.
+
+Charts that relied on the previous always-suffix default for an unset position will render the symbol on the locale-appropriate side instead; set the position explicitly on the metric's currency control to pin it.

 ### Duration formatter precision

@@ -179,6 +590,18 @@ Runbook to adopt:
 2. Set that value on the tunnel's `server_host_key` (via the database/SSH tunnel API or UI payload).
 3. Optionally set `SSH_TUNNEL_STRICT_HOST_KEY_CHECKING = True` in `superset_config.py` to require host-key verification on all tunnels.

+### SMTP server certificate validation enabled by default
+
+`SMTP_SSL_SERVER_AUTH` now defaults to `True` (previously `False`). With this default, STARTTLS/SSL connections to the configured SMTP server validate the server's TLS certificate against the system trusted CA store. This makes outbound email (alerts and reports) verify the mail server's identity out of the box.
+
+If your SMTP server presents a self-signed certificate, or a certificate that is not trusted by the system CA store, email delivery may now fail with a certificate verification error. To restore the previous behavior of skipping certificate validation, set the following in `superset_config.py`:
+
+```python
+SMTP_SSL_SERVER_AUTH = False
+```
+
+The recommended fix is to add the SMTP server's certificate (or its issuing CA) to the system trust store rather than disabling validation.
+
 ### Dataset import validates catalog against the target connection

 Importing a dataset now validates the `catalog` field against the target database connection. When the connection has multi-catalog disabled (`allow_multi_catalog` off) and the dataset's catalog is not the connection's default catalog, the import fails instead of silently persisting the non-default catalog. This matches the validation already enforced on the dataset update path and prevents imported datasets from querying an unintended database.
@@ -228,6 +651,86 @@ Schedule the cutover in a quiet window. Runtime reads use only the single config

 The migration is transactional (all-or-nothing) and idempotent — it can be safely re-run or resumed. Note that AES-GCM, unlike AES-CBC, does not support querying directly over encrypted columns; audit any code that filters on an encrypted column before switching. See the SIP at `docs/sip/authenticated-encryption-at-rest.md` for details.

+### Soft delete and restore for datasets
+
+**The soft-delete behavior in this section applies only when the `SOFT_DELETE` feature flag is enabled. The flag defaults to `False`** (`@lifecycle: development`), so on a default deployment `DELETE /api/v1/dataset/<id>` continues to **hard-delete permanently** — nothing is recoverable. Enable `SOFT_DELETE` to get the behavior described below.
+
+**Flag-toggle caveat:** the soft-delete visibility filter is evaluated per query while the flag is on. If datasets are soft-deleted during a flag-on window and the flag is later turned **off**, those rows reappear as live datasets in all lists, lookups, and relationship loads (including charts that reference them). The `POST /<uuid>/restore` endpoint and the `dataset_deleted_state` list filter remain functional regardless of the flag, deliberately, so rows soft-deleted during a flag-on window stay discoverable and restorable after a rollback of the flag.
+
+**Flag-independent parts of this work** (active even with `SOFT_DELETE` off): the restore endpoint and deleted-state filter (above); the database-deletion guard counting soft-deleted datasets; the `get_or_create_dataset` soft-deleted-twin pre-check; the combined datasource listing (`GET /api/v1/datasource/...`) always excluding soft-deleted datasets; and the two uniqueness-validation changes documented at the end of this section. Everything else — the soft DELETE itself and the visibility filtering — is flag-gated.
+
+With the flag enabled: `DELETE /api/v1/dataset/<id>` no longer hard-deletes the dataset (the bulk-delete endpoint behaves the same way). The row is marked with a `deleted_at` timestamp and hidden from all list, detail, and lookup endpoints. Datasets in this state are excluded from default queries and from relationship loads (e.g. `database.tables`).
+
+**No cascade in v1.** Soft-delete does not propagate to dependent charts or dashboards: they remain visible. Loading a chart whose dataset is soft-deleted surfaces a "datasource not found" error at chart-load time. Restore the dataset to recover.
+
+**Database deletion is blocked by soft-deleted datasets.** Superset already refuses to delete a database that still has datasets (`DatabaseDeleteDatasetsExistFailedError`); that check now explicitly counts soft-deleted datasets too (it bypasses the visibility filter), since the soft-deleted `tables` rows still reference the database via `database_id` and must not be orphaned. Consequence: because dataset `DELETE` is soft and v1 ships no hard-delete/purge, **a database that has ever had datasets cannot be deleted through the API once those datasets are soft-deleted** — the rows remain and keep blocking the delete. Until a purge capability lands, operators who must remove such a database have to hard-delete the underlying `tables` rows out-of-band first. This is a deliberate trade-off (no orphaned rows / restorable datasets) and is expected to be resolved by the planned purge work.
+
+**Side-effect change for operators.** Because the row is no longer physically deleted, FAB `ab_view_menu` / permission-view rows tied to the dataset are also preserved. Downstream automation that relied on `DELETE /api/v1/dataset/<id>` cleaning up those rows must now react to the new `POST /api/v1/dataset/<uuid>/restore` lifecycle, or call the eventual hard-delete endpoint.
+
+**New endpoint** — `POST /api/v1/dataset/<uuid>/restore` clears `deleted_at` and returns the dataset to active state. Requires `can_write on Dataset` and editorship of the row (or admin). Soft-deleted datasets can also be surfaced in the list endpoint via the new `dataset_deleted_state` rison filter: `include` returns both live and soft-deleted rows, `only` returns just the soft-deleted ones. Any other value is ignored. For non-admin users, soft-deleted rows are limited to datasets they can edit — the same audience that can restore them.
+
+**Permissions migration:** existing role grants of `can_write on Dataset` cover the new restore endpoint automatically; no role migration is required.
+
+**Schema migration:** the migration adds a nullable `deleted_at` column and an index on it (`ix_tables_deleted_at`) to the `tables` table. The column add is instant; the index build runs inline (no `CONCURRENTLY`) and may briefly block writes on the `tables` table (INSERT/UPDATE/DELETE are queued while the index builds; reads are unaffected) on large Postgres deployments. MySQL InnoDB builds the index online (no blocking). Production deployments with many thousands of datasets should run this migration during a maintenance window.
+
+**Rollback note:** if the application code is rolled back after datasets have been soft-deleted, the older code path's visibility filter no longer applies and previously hidden rows become visible to the older code. Pair the rollback with a data decision (restore the rows, hard-delete them, or also downgrade the migration) rather than assuming the old hard-delete semantics still hold. **Downgrading the migration destroys the deletion markers**: `downgrade()` drops the `deleted_at` column, so any not-yet-restored soft-deleted datasets silently become live, active datasets with no record they were ever deleted. Reconcile the trash (restore or hard-delete each row) *before* downgrading, and disable the `SOFT_DELETE` flag first so no new soft deletes land mid-rollback.
+
+**SQL Lab / dataset-creation flows:** creating a dataset over a table whose dataset sits in the trash is refused. The SQL Lab "save as dataset" flow (`get_or_create_dataset`) and file uploads return a **422 naming the hidden twin and the restore endpoint**; the plain create, update, and duplicate paths currently fail with the generic "already exists" 422. In all cases the remediation is the same: restore the hidden dataset (or use a different table name). Perm-string maintenance also covers hidden rows: renaming a database rewrites `perm`/`schema_perm`/`catalog_perm` on soft-deleted datasets and their charts, so a later restore does not resurrect stale permission strings.
+
+**Importer behavior:** importing a dataset YAML whose UUID matches an existing **soft-deleted** dataset is treated as an implicit restore-with-update — **and this happens even when `overwrite` is not set**. This is a deliberate asymmetry with active rows: an active dataset imported without `overwrite=true` is returned unchanged, but a soft-deleted UUID match is restored *and* has the upload's contents applied regardless of the `overwrite` argument, on the reasoning that re-importing a deleted dataset's exact UUID is an explicit request to bring it back. The restore preserves the original PK, the chart back-reference, `table_columns`, and `sql_metrics`. Non-editors get `ImportFailedError`. Callers without `can_write` get `ImportFailedError` instead of silently receiving the soft-deleted row.
+
+**Uniqueness-validation changes that apply regardless of the feature flag:** two dataset uniqueness checks were tightened alongside this work and are active even with `SOFT_DELETE` off. (1) Create/update uniqueness treats a dataset whose `catalog` is `NULL` as belonging to the database's default catalog, so a legacy twin pair (`catalog=NULL` vs. `catalog=<default>`, same database/schema/name) that older versions allowed now fails validation with "already exists" when either row is edited — resolve by renaming or removing one of the twins. (2) Duplicating a dataset now checks name collisions scoped to the target (database, catalog, schema) instead of globally by name alone: duplicates into other databases that were previously blocked are now allowed.
+
+### Soft delete and restore for charts
+
+**Everything in this section applies only when the `SOFT_DELETE` feature flag is enabled. The flag defaults to `False`** (`@lifecycle: development`), so on a default deployment `DELETE /api/v1/chart/<id>` continues to **hard-delete permanently** — nothing is recoverable. Enable `SOFT_DELETE` to get the behavior described below.
+
+**Flag-toggle caveat:** the soft-delete visibility filter is evaluated per query while the flag is on. If charts are soft-deleted during a flag-on window and the flag is later turned **off**, those rows reappear as live charts in all lists, lookups, and relationship loads (including dashboards that contained them). The `POST /<uuid>/restore` endpoint and the `chart_deleted_state` list filter remain functional regardless of the flag, deliberately, so rows soft-deleted during a flag-on window stay discoverable and restorable after a rollback of the flag.
+
+With the flag enabled: `DELETE /api/v1/chart/<id>` no longer hard-deletes the chart (the bulk-delete endpoint behaves the same way). The row is marked with a `deleted_at` timestamp and hidden from all list, detail, and lookup endpoints. Charts in this state are excluded from default queries and from relationship loads (e.g. `dashboard.slices`).
+
+**Operational notes:** a report schedule whose target chart is soft-deleted now fails its runs with an explicit error ("The chart this report targets was deleted...") until the chart is restored or the report re-pointed — chart deletion is blocked while a report references the chart, but a validate/commit race or a flag toggle can still produce this state. Dashboards **preserve** their membership rows for soft-deleted charts: saving a dashboard does not sever a trashed member, and restoring the chart re-attaches it to its dashboards.
+
+**New endpoint** — `POST /api/v1/chart/<uuid>/restore` clears `deleted_at` and returns the chart to active state. Requires `can_write on Chart` and editorship of the row (or admin). Soft-deleted charts can also be surfaced in the list endpoint via the new `chart_deleted_state` rison filter: `include` returns both live and soft-deleted rows, `only` returns just the soft-deleted ones. Any other value is ignored. For non-admin users, soft-deleted rows are limited to charts they can edit — the same audience that can restore them.
+
+**Permissions migration:** existing role grants of `can_write on Chart` cover the new restore endpoint automatically; no role migration is required.
+
+**Schema migration:** the migration adds a nullable `deleted_at` column and an index on it (`ix_slices_deleted_at`) to the `slices` table. The column add is instant; the index build runs inline (no `CONCURRENTLY`) and may briefly block writes on the `slices` table (INSERT/UPDATE/DELETE are queued while the index builds; reads are unaffected) on large Postgres deployments. MySQL InnoDB builds the index online (no blocking).
+
+**Rollback note:** if the application code is rolled back after charts have been soft-deleted, the older code path's visibility filter no longer applies and previously hidden rows become visible to the older code. Pair the rollback with a data decision (restore the rows, hard-delete them, or also downgrade the migration) rather than assuming the old hard-delete semantics still hold. **Downgrading the migration destroys the deletion markers**: `downgrade()` drops the `deleted_at` column, so any not-yet-restored soft-deleted charts silently become live, active charts with no record they were ever deleted. Reconcile the trash (restore or hard-delete each row) *before* downgrading, and disable the `SOFT_DELETE` flag first so no new soft deletes land mid-rollback.
+
+**Importer behavior:** importing a chart YAML whose UUID matches an existing **soft-deleted** chart is treated as an implicit restore-with-update — **and this happens even when `overwrite` is not set**. This is a deliberate asymmetry with active rows: an active chart imported without `overwrite=true` is returned unchanged, but a soft-deleted UUID match is restored *and* has the upload's contents applied regardless of the `overwrite` argument, on the reasoning that re-importing a deleted chart's exact UUID is an explicit request to bring it back. The restore preserves the original PK and all out-of-archive references (`dashboard_slices` junctions, `report.chart_id`, tag rows). The operation is permission-gated: non-editors get `ImportFailedError`, and callers without `can_write` get `ImportFailedError` instead of silently receiving the soft-deleted row.
+
+- [39914](https://github.com/apache/superset/pull/39914) `ALERT_REPORT_SLACK_V2` now defaults to `True` and the legacy Slack v1 integration (`Slack` recipient type, `files.upload` API) is deprecated for removal in the next major. Slack blocked new apps from `files.upload` in May 2024 and fully retired the method for all apps on November 12, 2025; because the v1 path sends files through `files.upload`, v1 file-bearing sends now fail at the API level — only text-only `chat_postMessage` still works via the legacy path. Grant your Slack bot the `channels:read` and `groups:read` scopes so existing `Slack` recipients can be auto-upgraded to `SlackV2` on next send. Operators who explicitly override the flag to `False`, or whose Slack bot is missing those scopes, will see deprecation warnings while text-only sends continue through the legacy path.
+
+### Soft delete and restore for dashboards
+
+**Everything in this section applies only when the `SOFT_DELETE` feature flag is enabled. The flag defaults to `False`** (`@lifecycle: development`), so on a default deployment `DELETE /api/v1/dashboard/<id>` continues to **hard-delete permanently** — nothing is recoverable. Enable `SOFT_DELETE` to get the behavior described below.
+
+**Flag-toggle caveat:** the soft-delete visibility filter is evaluated per query while the flag is on. If dashboards are soft-deleted during a flag-on window and the flag is later turned **off**, those rows reappear as live dashboards in all lists and lookups (including slug lookups — if a soft-deleted dashboard's slug was reused while the flag was on, both rows become visible with the same slug). The `POST /<uuid>/restore` endpoint and the `dashboard_deleted_state` list filter remain functional regardless of the flag, deliberately, so rows soft-deleted during a flag-on window stay discoverable and restorable after a rollback of the flag.
+
+With the flag enabled: `DELETE /api/v1/dashboard/<id>` no longer hard-deletes the dashboard (the bulk-delete endpoint behaves the same way). The row is marked with a `deleted_at` timestamp and hidden from the dashboard API's list, detail, and lookup endpoints, which return 404 for soft-deleted dashboards. The embedded-dashboard iframe URL (`/embedded/<uuid>`) keeps rendering because it reads only `embedded.allowed_domains` and `embedded.dashboard_id` (the FK column) without dereferencing the parent dashboard; the frontend's subsequent dashboard-API fetch is what sees the 404 and surfaces "dashboard not found" to the user.
+
+**New endpoint** — `POST /api/v1/dashboard/<uuid>/restore` clears `deleted_at` and returns the dashboard to active state. Requires `can_write on Dashboard` and editorship of the row (or admin). Soft-deleted dashboards can also be surfaced in the list endpoint via the new `dashboard_deleted_state` rison filter: `include` returns both live and soft-deleted rows, `only` returns just the soft-deleted ones. Any other value is ignored. For non-admin users, soft-deleted rows are limited to dashboards they can edit — the same audience that can restore them.
+
+**Permissions migration:** existing role grants of `can_write on Dashboard` cover the new restore endpoint automatically; no role migration is required.
+
+**Schema migration:** the migration adds a nullable `deleted_at` column and an index on it (`ix_dashboards_deleted_at`) to the `dashboards` table, and **replaces the full unique constraint on `slug`** with a partial unique index (`ix_dashboards_active_slug`) enforcing slug uniqueness only among active (non-soft-deleted) rows. The column add is instant. On Postgres the constraint swap briefly blocks reads and writes during `ALTER TABLE ... DROP CONSTRAINT` (acquires `ACCESS EXCLUSIVE`), then blocks writes only during `CREATE UNIQUE INDEX` (acquires `ShareLock`); reads pass through during the index build. Both windows are sub-second on a typical `dashboards` table. MySQL InnoDB builds the functional index online (no blocking).
+
+**Rollback note:** the downgrade restores the original full unique constraint on `slug`. If the partial-index window allowed slug reuse (a soft-deleted row and an active row holding the same slug), `ALTER TABLE ... ADD CONSTRAINT idx_unique_slug UNIQUE (slug)` will abort with a unique-constraint violation. Before downgrading, hard-delete the soft-deleted duplicates (or rename one side) so each slug appears at most once across all rows. Rolling back the application code while leaving the new migration in place is also possible but exposes soft-deleted rows to the older code path; pair the rollback with a data decision (restore, hard-delete, or migrate-down).
+
+The partial-index replacement is dialect-dependent: PostgreSQL uses a native `WHERE deleted_at IS NULL` partial index; MySQL 8.0.13+ uses a functional index over `(CASE WHEN deleted_at IS NULL THEN slug END)` (8.0.13 is the first release with functional key parts). **MySQL <8.0.13, MariaDB, and SQLite keep the original full unique constraint** (functional indexes / column-level UNIQUE recreation aren't supported cleanly — MariaDB is excluded even at 10.x because its `CASE`-expression index semantics differ), so on those backends a soft-deleted dashboard continues to reserve its slug for the lifetime of the row.
+
+**Slug semantics:** on PostgreSQL and MySQL 8.0.13+, the slug of a soft-deleted dashboard is **free for reuse**. A new active dashboard can claim it immediately. Restoring a soft-deleted dashboard whose slug has since been claimed returns **422 with a clean error** (`DashboardSlugConflictError`) — rename one of the dashboards and retry; the restore is not silently rejected by a database-level constraint violation.
+
+**Importer behavior:** importing a dashboard YAML whose UUID matches an existing **soft-deleted** dashboard is treated as an implicit restore-with-update — **and this happens even when `overwrite` is not set**. This is a deliberate asymmetry with active rows: an active dashboard imported without `overwrite=true` is returned unchanged (the import never mutates it), but a soft-deleted UUID match is restored *and* has the upload's contents applied regardless of the `overwrite` argument, on the reasoning that re-importing a deleted dashboard's exact UUID is an explicit request to bring it back. The restore preserves the original PK and all pre-deletion relationship rows (`dashboard_slices` junctions, editor/viewer subjects, tags). Callers whose imports must never mutate existing state should treat bundles that may contain previously deleted UUIDs accordingly. The operation is permission-gated: it requires `can_write` and editorship of the deleted row (or admin) — non-editors get `ImportFailedError`, and callers without `can_write` get `ImportFailedError` instead of silently receiving the soft-deleted row.
+
+### Engine spec capability flag: `supports_offset`
+
+A new `BaseEngineSpec.supports_offset` attribute (default `True`) indicates whether a database engine supports the SQL `OFFSET` clause. Engines that do not support `OFFSET` — such as Elasticsearch SQL and OpenDistro — opt out by setting it to `False`, and Superset uses each engine's cursor API to paginate drill-to-detail samples instead of emitting `OFFSET`. Downstream forks maintaining custom engine specs may set the flag to `False` (and implement `fetch_data_with_cursor`) to avoid crashes when paginated drill-to-detail queries are run against engines without `OFFSET` support.
+
+**Note on deep-pagination cost:** Cursor-based engines (including Elasticsearch and OpenDistro) are forward-only, so reaching page `N` of a drill-to-detail view issues `N` round trips to the cluster. Deep pagination is therefore linear in page number; users paginating into the hundreds or thousands will notice added latency compared to `OFFSET`-capable engines.
+
 ### Granular Export Controls

 A new feature flag `GRANULAR_EXPORT_CONTROLS` introduces three fine-grained permissions that replace the legacy `can_csv` permission:
@@ -258,12 +761,22 @@ Added a new combined datasource list endpoint at `GET /api/v1/datasource/` to se
 - Semantic views are included only when the `SEMANTIC_LAYERS` feature flag is enabled.
 - The endpoint enforces strict `order_column` validation and returns `400` for invalid sort columns.

+### Custom time range "Now"/"Today" anchors resolve in local time
+
+Custom time ranges that use the "Now" or "Today" anchor (for the Start, End, or the relative anchor itself) previously resolved that anchor in UTC before formatting it into a naive datetime string, which was then re-parsed elsewhere as local time. For users outside UTC, this made the resolved anchor drift by their browser's UTC offset. "Now"/"Today" now resolve directly in local time, matching the later local re-parse.
+
+Charts and dashboards using these anchors will compute a different (correct) timestamp after upgrading; if a chart's filters or drill-downs were tuned to compensate for the old offset, review them after upgrading.
+
 ## 6.1.0

 ### ClickHouse minimum driver version bump

 The minimum required version of `clickhouse-connect` has been raised to `>=0.13.0`. If you are using the ClickHouse connector, please upgrade your `clickhouse-connect` package. The `_mutate_label` workaround that appended hash suffixes to column aliases has also been removed, as it is no longer needed with modern versions of the driver.

+### Kenya Country Map: Updated Administrative Divisions
+
+The Kenya country map has been updated to reflect the 47 counties established under Kenya's 2010 constitution, replacing the outdated 8-province boundaries from the Natural Earth dataset. County keys now use ISO 3166-2:KE codes (`KE-01` through `KE-47`), replacing the former province codes (`KE-110`, `KE-200`, ..., `KE-800`). Dashboards that join on the old province codes will need to re-key their datasets to use the new county codes.
+
 ### MCP Tool Observability

 MCP (Model Context Protocol) tools now include enhanced observability instrumentation for monitoring and debugging:
@@ -472,6 +985,7 @@ See `superset/mcp_service/PRODUCTION.md` for deployment guides.

 ---

+- [38358](https://github.com/apache/superset/pull/38358): Switched CrateDB PyPI package from `crate[sqlalchemy]` to `sqlalchemy-cratedb`.
 - [35621](https://github.com/apache/superset/pull/35621): The default hash algorithm has changed from MD5 to SHA-256 for improved security and FedRAMP compliance. This affects cache keys for thumbnails, dashboard digests, chart digests, and filter option names. Existing cached data will be invalidated upon upgrade. To opt out of this change and maintain backward compatibility, set `HASH_ALGORITHM = "md5"` in your `superset_config.py`.
 - [35062](https://github.com/apache/superset/pull/35062): Changed the function signature of `setupExtensions` to `setupCodeOverrides` with options as arguments.

@@ -517,6 +1031,29 @@ See `superset/mcp_service/PRODUCTION.md` for deployment guides.
  }
  ```

+### Composite primary keys on many-to-many association tables
+
+Eight M:N association tables move from a synthetic `id INTEGER PRIMARY KEY` to a composite `PRIMARY KEY (fk1, fk2)` on their two foreign-key columns. The surrogate `id` is dropped, and the redundant `UNIQUE (fk1, fk2)` on the two tables that carried one is removed (now subsumed by the PK).
+
+| Table | Composite PK |
+|---|---|
+| `dashboard_roles` | `(dashboard_id, role_id)` |
+| `dashboard_slices` | `(dashboard_id, slice_id)` |
+| `dashboard_user` | `(user_id, dashboard_id)` |
+| `report_schedule_user` | `(user_id, report_schedule_id)` |
+| `rls_filter_roles` | `(role_id, rls_filter_id)` |
+| `rls_filter_tables` | `(table_id, rls_filter_id)` |
+| `slice_user` | `(user_id, slice_id)` |
+| `sqlatable_user` | `(user_id, table_id)` |
+
+**Before upgrading:**
+
+- The migration **deletes** two classes of pre-existing rows the composite PK cannot accommodate: duplicate `(fk1, fk2)` pairs (it keeps the lowest `id` and removes the rest) and rows with `NULL` in either FK column. Both are meaningless for `secondary=` association tables, but export the affected rows first if you need an audit record.
+- External tooling (BI tools, backup scripts) that references the surrogate `id` on these tables will break; no application code references it.
+- Downgrade restores the `id` column (and the original `UNIQUE` on the two tables that had it) but leaves the FK columns `NOT NULL` (intentional — a `NULL` FK in a junction row is meaningless).
+
+For large `dashboard_slices` / `report_schedule_user` tables, see the operator runbook in [#39859](https://github.com/apache/superset/pull/39859) — pre-flight inventory queries, per-dialect lock-window sizing, and the duplicate / NULL-FK roll-up — to plan the maintenance window.
+
 ## 6.0.0
 - [33055](https://github.com/apache/superset/pull/33055): Upgrades Flask-AppBuilder to 5.0.0. The AUTH_OID authentication type has been deprecated and is no longer available as an option in Flask-AppBuilder. OpenID (OID) is considered a deprecated authentication protocol - if you are using AUTH_OID, you will need to migrate to an alternative authentication method such as OAuth, LDAP, or database authentication before upgrading.
 - [34871](https://github.com/apache/superset/pull/34871): Fixed Jest test hanging issue from Ant Design v5 upgrade. MessageChannel is now mocked in test environment to prevent rc-overflow from causing Jest to hang. Test environment only - no production impact.
@@ -28,8 +28,10 @@ x-superset-image: &superset-image apachesuperset.docker.scarf.sh/apache/superset
 x-superset-volumes:
  &superset-volumes # /app/pythonpath_docker will be appended to the PYTHONPATH in the final container
  - ./docker:/app/docker
-  - ./superset-core:/app/superset-core
  - superset_home:/app/superset_home
+x-superset-environment: &superset-environment
+  # Tagged images must use their bundled packages rather than host bind mounts.
+  DEV_MODE: "false"

 services:
  redis:
@@ -58,6 +60,7 @@ services:
        required: true
      - path: docker/.env-local # optional override
        required: false
+    environment: *superset-environment
    image: *superset-image
    container_name: superset_app
    command: ["/app/docker/docker-bootstrap.sh", "app-gunicorn"]
@@ -79,6 +82,7 @@ services:
        required: true
      - path: docker/.env-local # optional override
        required: false
+    environment: *superset-environment
    depends_on:
      db:
        condition: service_started
@@ -98,6 +102,7 @@ services:
        required: true
      - path: docker/.env-local # optional override
        required: false
+    environment: *superset-environment
    restart: unless-stopped
    depends_on:
      superset-init:
@@ -120,6 +125,7 @@ services:
        required: true
      - path: docker/.env-local # optional override
        required: false
+    environment: *superset-environment
    restart: unless-stopped
    depends_on:
      superset-init:
@@ -71,7 +71,7 @@ x-common-build: &common-build
  context: .
  target: ${SUPERSET_BUILD_TARGET:-dev} # can use `dev` (default) or `lean`
  cache_from:
-    - apache/superset-cache:3.10-slim-trixie
+    - apache/superset-cache:3.11-slim-trixie
  args:
    DEV_MODE: "true"
    INCLUDE_CHROMIUM: ${INCLUDE_CHROMIUM:-false}
@@ -33,7 +33,7 @@ x-common-build: &common-build
  context: .
  target: dev
  cache_from:
-    - apache/superset-cache:3.10-slim-trixie
+    - apache/superset-cache:3.11-slim-trixie

 services:
  redis:
@@ -34,11 +34,12 @@ x-superset-volumes: &superset-volumes
  - superset_home:/app/superset_home
  - ./tests:/app/tests
  - superset_data:/app/data
+  - ./local_extensions:/app/local_extensions
 x-common-build: &common-build
  context: .
  target: ${SUPERSET_BUILD_TARGET:-dev} # can use `dev` (default) or `lean`
  cache_from:
-    - apache/superset-cache:3.10-slim-trixie
+    - apache/superset-cache:3.11-slim-trixie
  args:
    DEV_MODE: "true"
    INCLUDE_CHROMIUM: ${INCLUDE_CHROMIUM:-false}
@@ -38,7 +38,7 @@ RESET='\033[0m'
 echo -e "${GREEN}Updating package lists...${RESET}"
 apt-get update -qq

-echo -e "${GREEN}Installing packages: $@${RESET}"
+echo -e "${GREEN}Installing packages: $*${RESET}"
 apt-get install -yqq --no-install-recommends "$@"

 echo -e "${GREEN}Autoremoving unnecessary packages...${RESET}"
@@ -98,7 +98,9 @@ case "${1}" in
        echo "  🔒 Werkzeug debugger disabled (set SUPERSET_DEBUG_ENABLED=true to enable)"
    fi

-    flask run -p $PORT --reload $DEBUGGER_FLAG --host=0.0.0.0 --exclude-patterns "*/node_modules/*:*/.venv/*:*/build/*:*/__pycache__/*:*/superset-frontend/*"
+    flask run -p $PORT --reload $DEBUGGER_FLAG --host=0.0.0.0 \
+      --extra-files "/app/superset/extensions/.reload_trigger" \
+      --exclude-patterns "*/node_modules/*:*/.venv/*:*/build/*:*/__pycache__/*:*/superset-frontend/*:*/superset/__init__.py"
    ;;
  app-gunicorn)
    echo "Starting web app..."
@@ -84,9 +84,11 @@ class CeleryConfig:
    broker_url = f"redis://{REDIS_HOST}:{REDIS_PORT}/{REDIS_CELERY_DB}"
    imports = (
        "superset.sql_lab",
+        "superset.tasks.deletion_retention",
        "superset.tasks.scheduler",
        "superset.tasks.thumbnails",
        "superset.tasks.cache",
+        "superset.tasks.export_dashboard_excel",
    )
    result_backend = f"redis://{REDIS_HOST}:{REDIS_PORT}/{REDIS_RESULTS_DB}"
    worker_prefetch_multiplier = 1
@@ -100,6 +102,13 @@ class CeleryConfig:
            "task": "reports.prune_log",
            "schedule": crontab(minute=10, hour=0),
        },
+        # Gated on the SOFT_DELETE feature flag, which is off by default: the
+        # task is scheduled either way, but purges nothing while the flag is
+        # unset. Enable it in FEATURE_FLAGS below to exercise retention locally.
+        "deletion_retention.purge_soft_deleted": {
+            "task": "deletion_retention.purge_soft_deleted",
+            "schedule": crontab(minute=0, hour=0),
+        },
    }


@@ -113,7 +122,13 @@ FEATURE_FLAGS = {
 }
 EXTENSIONS_PATH = "/app/docker/extensions"
 ALERT_REPORTS_NOTIFICATION_DRY_RUN = True
-WEBDRIVER_BASEURL = f"http://superset_app{os.environ.get('SUPERSET_APP_ROOT', '/')}/"  # When using docker compose baseurl should be http://superset_nginx{ENV{BASEPATH}}/  # noqa: E501
+# The Docker Compose app service is named "superset" and listens on 8088. Report
+# paths are root-relative, so urljoin drops the base path; only the scheme, host,
+# and port must be correct here. SUPERSET_APP_ROOT is kept for consumers that
+# concatenate paths directly (e.g. cache warm-up). For screenshots in the dev
+# stack (unbuilt static assets) point this at the nginx service instead:
+# http://nginx{SUPERSET_APP_ROOT}/
+WEBDRIVER_BASEURL = f"http://superset:8088{os.environ.get('SUPERSET_APP_ROOT', '/')}/"
 # The base URL for the email report hyperlinks.
 WEBDRIVER_BASEURL_USER_FRIENDLY = (
    f"http://localhost:8888/{os.environ.get('SUPERSET_APP_ROOT', '/')}/"
@@ -163,10 +163,10 @@ do
    # Iterate through the components of the version strings
    for (( j=0; j<${#THIS_TAG_NAME_ARRAY[@]}; j++ )); do
        echo "Comparing ${THIS_TAG_NAME_ARRAY[$j]} to ${LATEST_RELEASE_TAG_ARRAY[$j]}"
-        if [[ $((THIS_TAG_NAME_ARRAY[$j])) > $((LATEST_RELEASE_TAG_ARRAY[$j])) ]]; then
+        if [[ $((THIS_TAG_NAME_ARRAY[$j])) -gt $((LATEST_RELEASE_TAG_ARRAY[$j])) ]]; then
            compare_result="greater"
            break
-        elif [[ $((THIS_TAG_NAME_ARRAY[$j])) < $((LATEST_RELEASE_TAG_ARRAY[$j])) ]]; then
+        elif [[ $((THIS_TAG_NAME_ARRAY[$j])) -lt $((LATEST_RELEASE_TAG_ARRAY[$j])) ]]; then
            compare_result="lesser"
            break
        fi
@@ -9,11 +9,13 @@ When working on the Storybook-to-MDX documentation system:
 ## Why This Matters

 The generator (`scripts/generate-superset-components.mjs`) should be lightweight - it extracts data from stories and passes it through. When you add special cases to the generator:
+
 - It becomes harder to maintain
 - Stories diverge from their docs representation
 - Future stories need to know about generator quirks

 When you fix stories to match the expected patterns:
+
 - Stories work identically in Storybook and Docs
 - The generator stays simple and predictable
 - Patterns are consistent and learnable
@@ -21,6 +23,7 @@ When you fix stories to match the expected patterns:
 ## Story Patterns for Docs Generation

 ### Required Structure
+
 ```tsx
 // Use inline export default (NOT const meta = ...; export default meta)
 export default {
@@ -45,6 +48,7 @@ export const InteractiveMyComponent: Story = {
 ```

 ### For Components with Variants (size × style grids)
+
 ```tsx
 const sizes = ['small', 'medium', 'large'];
 const variants = ['primary', 'secondary', 'danger'];
@@ -63,16 +67,20 @@ InteractiveButton.parameters = {
 ```

 ### For Components Requiring Children
+
 ```tsx
 InteractiveIconTooltip.parameters = {
  docs: {
    // Component descriptors with dot notation for nested components
-    sampleChildren: [{ component: 'Icons.InfoCircleOutlined', props: { iconSize: 'l' } }],
+    sampleChildren: [
+      { component: 'Icons.InfoCircleOutlined', props: { iconSize: 'l' } },
+    ],
  },
 };
 ```

 ### For Custom Live Code Examples
+
 ```tsx
 InteractiveMyComponent.parameters = {
  docs: {
@@ -84,6 +92,7 @@ InteractiveMyComponent.parameters = {
 ```

 ### For Complex Props (objects, arrays)
+
 ```tsx
 InteractiveMenu.parameters = {
  docs: {
@@ -99,13 +108,13 @@ InteractiveMenu.parameters = {

 ## Common Issues and How to Fix Them (in the Story)

-| Issue | Wrong Approach | Right Approach |
-|-------|---------------|----------------|
-| Component not generated | Add pattern to generator | Change story to use inline `export default` |
+| Issue                                   | Wrong Approach                | Right Approach                                    |
+| --------------------------------------- | ----------------------------- | ------------------------------------------------- |
+| Component not generated                 | Add pattern to generator      | Change story to use inline `export default`       |
 | Control shows as text instead of select | Add special case in generator | Add `argTypes` with `control: { type: 'select' }` |
-| Missing children/content | Modify StorybookWrapper | Add `parameters.docs.sampleChildren` |
-| Gallery not showing | Add to generator output | Add `parameters.docs.gallery` config |
-| Wrong live example | Hardcode in generator | Add `parameters.docs.liveExample` |
+| Missing children/content                | Modify StorybookWrapper       | Add `parameters.docs.sampleChildren`              |
+| Gallery not showing                     | Add to generator output       | Add `parameters.docs.gallery` config              |
+| Wrong live example                      | Hardcode in generator         | Add `parameters.docs.liveExample`                 |

 ## Files

@@ -0,0 +1,9 @@
+{
+  "$schema": "./node_modules/oxfmt/configuration_schema.json",
+  "singleQuote": true,
+  "trailingComma": "all",
+  "arrowParens": "avoid",
+  "printWidth": 80,
+  "sortPackageJson": false,
+  "ignorePatterns": ["**/*.mdx"]
+}
@@ -1,5 +0,0 @@
-{
-  "singleQuote": true,
-  "trailingComma": "all",
-  "arrowParens": "avoid"
-}
@@ -69,6 +69,7 @@ yarn eslint              # Lint TypeScript/JavaScript files
 ## 📁 Documentation Structure

 ### Main Documentation (`/docs`)
+
 The primary documentation lives in `/docs` with this structure:

 ```
@@ -104,54 +105,57 @@ docs/
 ```

 ### Admin Docs (`/admin_docs`)
+
 Admin-focused content: installation, configuration, security.

 ### Developer Docs (`/developer_docs`)
+
 Developer-focused content: API documentation, architecture guides, CLI tools, code examples.

 ### Component Playground (`/components`)
+
 Interactive component examples for UI development.

 ## 📝 Documentation Standards

 ### File Types
+
 - **`.md` files**: Basic Markdown documents
 - **`.mdx` files**: Markdown with JSX - can include React components
 - **`.tsx` files in `/src`**: Custom React components and pages

 ### Frontmatter Structure
+
 Every documentation page should have frontmatter:

 ```yaml
 ---
 title: Page Title
 description: Brief description for SEO
-sidebar_position: 1  # Optional: controls order in sidebar
+sidebar_position: 1 # Optional: controls order in sidebar
 ---
 ```

 ### MDX Component Usage
+
 MDX files can import and use React components:

-```mdx
+````mdx
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';

 <Tabs>
  <TabItem value="npm" label="npm" default>
-    ```bash
-    npm install superset
-    ```
+    ```bash npm install superset ```
  </TabItem>
  <TabItem value="yarn" label="yarn">
-    ```bash
-    yarn add superset
-    ```
+    ```bash yarn add superset ```
  </TabItem>
 </Tabs>
-```
+````

 ### Code Blocks
+
 Use triple backticks with language identifiers:

 ````markdown
@@ -171,6 +175,7 @@ pip install apache-superset
 ````

 ### Admonitions
+
 Docusaurus supports various admonition types:

 ```markdown
@@ -198,20 +203,21 @@ This is an info box
 ## 🔄 Version Management

 ### Version Configuration
+
 Versions are managed through `versions-config.json`:

 ```json
 {
  "docs": {
    "disabled": false,
-    "lastVersion": "6.0.0",        // Default version shown
-    "includeCurrentVersion": true,  // Show "Next" version
+    "lastVersion": "6.0.0", // Default version shown
+    "includeCurrentVersion": true, // Show "Next" version
    "onlyIncludeVersions": ["current", "6.0.0"],
    "versions": {
      "current": {
        "label": "Next",
        "path": "",
-        "banner": "unreleased"     // Shows warning banner
+        "banner": "unreleased" // Shows warning banner
      },
      "6.0.0": {
        "label": "6.0.0",
@@ -224,6 +230,7 @@ Versions are managed through `versions-config.json`:
 ```

 ### Creating New Versions
+
 **IMPORTANT**: Always use the custom scripts, NOT native Docusaurus commands:

 ```bash
@@ -235,8 +242,10 @@ yarn docusaurus docs:version 6.1.0
 ```

 ### Version Files Created
+
 When versioning, these files are created (per section, with the
 section's plugin id as prefix):
+
 - `<section>_versioned_docs/version-X.X.X/` - Snapshot of current docs
 - `<section>_versioned_sidebars/version-X.X.X-sidebars.json` - Sidebar config
 - `<section>_versions.json` - List of all versions
@@ -246,6 +255,7 @@ Section plugin ids: `user_docs`, `admin_docs`, `developer_docs`, `components`.
 ## 🎨 Styling and Theming

 ### Custom CSS
+
 Add custom styles in `/src/css/custom.css`:

 ```css
@@ -256,13 +266,14 @@ Add custom styles in `/src/css/custom.css`:
 ```

 ### Custom Components
+
 Create React components in `/src/components/`:

 ```tsx
 // src/components/FeatureCard.tsx
 import React from 'react';

-export default function FeatureCard({title, description}) {
+export default function FeatureCard({ title, description }) {
  return (
    <div className="card">
      <h3>{title}</h3>
@@ -277,10 +288,7 @@ Use in MDX:
 ```mdx
 import FeatureCard from '@site/src/components/FeatureCard';

-<FeatureCard
-  title="Fast"
-  description="Lightning fast queries"
-/>
+<FeatureCard title="Fast" description="Lightning fast queries" />
 ```

 ## 📦 Key Dependencies
@@ -295,6 +303,7 @@ import FeatureCard from '@site/src/components/FeatureCard';
 ## 🔗 Linking Strategies

 ### Internal Links
+
 Use relative paths for internal documentation:

 ```markdown
@@ -303,6 +312,7 @@ Use relative paths for internal documentation:
 ```

 ### External Links
+
 Always use full URLs:

 ```markdown
@@ -310,6 +320,7 @@ Always use full URLs:
 ```

 ### Linking to Code
+
 Reference code in the main repository:

 ```markdown
@@ -319,21 +330,24 @@ See the [main configuration file](https://github.com/apache/superset/blob/master
 ## 🛠️ Common Documentation Tasks

 ### Adding a New Guide
+
 1. Create the `.mdx` file in the appropriate directory
 2. Add frontmatter with title and description
 3. Update sidebar if needed (for manual sidebar configs)

 ### Adding API Documentation
+
 The API docs use Swagger UI embedded in `/docs/api.mdx`:

 ```mdx
-import SwaggerUI from "swagger-ui-react";
-import "swagger-ui-react/swagger-ui.css";
+import SwaggerUI from 'swagger-ui-react';
+import 'swagger-ui-react/swagger-ui.css';

 <SwaggerUI url="/api/v1/openapi.json" />
 ```

 ### Adding Interactive Examples
+
 Use MDX to create interactive documentation:

 ```mdx
@@ -360,6 +374,7 @@ When creating or updating documentation:
 ## 🔍 Searching and Navigation

 ### Sidebar Configuration
+
 Sidebars are configured in `/sidebars.js`:

 ```javascript
@@ -385,6 +400,7 @@ module.exports = {
 ```

 ### Search
+
 Docusaurus includes Algolia DocSearch integration configured in `docusaurus.config.ts`.

 ## 🚫 Common Pitfalls to Avoid
@@ -398,6 +414,7 @@ Docusaurus includes Algolia DocSearch integration configured in `docusaurus.conf
 ## 🔧 Troubleshooting

 ### Dev Server Issues
+
 ```bash
 yarn stop     # Kill any running servers
 yarn clear    # Clear cache
@@ -405,6 +422,7 @@ yarn start    # Restart
 ```

 ### Build Failures
+
 ```bash
 # Check for broken links
 yarn build
@@ -417,7 +435,9 @@ yarn eslint
 ```

 ### Version Issues
+
 If versions don't appear in dropdown:
+
 1. Check `versions-config.json` includes the version
 2. Verify version files exist in `<section>_versioned_docs/`
 3. Restart dev server
@@ -432,9 +452,10 @@ If versions don't appear in dropdown:
 ## 📖 Real Examples and Patterns

 ### Example: Configuration Documentation Pattern
+
 From `docs/configuration/configuring-superset.mdx`:

-```mdx
+````mdx
 ---
 title: Configuring Superset
 hide_title: true
@@ -452,7 +473,9 @@ Superset exposes hundreds of configurable parameters through its
 ```bash
 export SUPERSET_CONFIG_PATH=/app/superset_config.py
 ```
-```
+````
+
+````

 **Key patterns:**
 - Links to source code for reference
@@ -476,9 +499,10 @@ documentation at [docs.preset.io](https://docs.preset.io/).
 ### Connecting to a new database

 <img src={useBaseUrl("/img/tutorial/tutorial_01_add_database_connection.png")} width="600" />
-```
+````

 **Key patterns:**
+
 - Import Docusaurus hooks for dynamic URLs
 - Use of admonitions (:::tip) for helpful information
 - Screenshots with useBaseUrl for proper path resolution
@@ -486,11 +510,12 @@ documentation at [docs.preset.io](https://docs.preset.io/).
 - Step-by-step visual guides

 ### Example: API Documentation Pattern
+
 From `docs/api.mdx`:

 ```mdx
-import SwaggerUI from "swagger-ui-react";
-import "swagger-ui-react/swagger-ui.css";
+import SwaggerUI from 'swagger-ui-react';
+import 'swagger-ui-react/swagger-ui.css';

 ## API Documentation

@@ -498,6 +523,7 @@ import "swagger-ui-react/swagger-ui.css";
 ```

 **Key patterns:**
+
 - Embedding interactive Swagger UI
 - Importing necessary CSS
 - Direct API spec integration
@@ -508,49 +534,39 @@ import "swagger-ui-react/swagger-ui.css";
 // For images in static folder
 import useBaseUrl from "@docusaurus/useBaseUrl";

-<img src={useBaseUrl("/img/feature-screenshot.png")} width="600" />
+<img src={useBaseUrl('/img/feature-screenshot.png')} width="600" />

 // With caption
+
 <figure>
-  <img src={useBaseUrl("/img/dashboard.png")} alt="Dashboard view" />
+  <img src={useBaseUrl('/img/dashboard.png')} alt="Dashboard view" />
  <figcaption>Superset Dashboard Interface</figcaption>
 </figure>
 ```

 ### Multi-Tab Code Examples

-```mdx
+````mdx
 import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';

 <Tabs
  defaultValue="docker"
  values={[
-    {label: 'Docker', value: 'docker'},
-    {label: 'Kubernetes', value: 'k8s'},
-    {label: 'PyPI', value: 'pypi'},
-  ]}>
-  <TabItem value="docker">
-    ```bash
-    docker-compose up
-    ```
-  </TabItem>
-  <TabItem value="k8s">
-    ```bash
-    kubectl apply -f superset.yaml
-    ```
-  </TabItem>
-  <TabItem value="pypi">
-    ```bash
-    pip install apache-superset
-    ```
-  </TabItem>
+    { label: 'Docker', value: 'docker' },
+    { label: 'Kubernetes', value: 'k8s' },
+    { label: 'PyPI', value: 'pypi' },
+  ]}
+>
+  <TabItem value="docker">```bash docker-compose up ```</TabItem>
+  <TabItem value="k8s">```bash kubectl apply -f superset.yaml ```</TabItem>
+  <TabItem value="pypi">```bash pip install apache-superset ```</TabItem>
 </Tabs>
-```
+````

 ### Configuration File Examples

-```mdx
+````mdx
 ```python title="superset_config.py"
 # Database connection example
 SQLALCHEMY_DATABASE_URI = 'postgresql://user:password@localhost/superset'
@@ -565,7 +581,9 @@ FEATURE_FLAGS = {
    'DASHBOARD_NATIVE_FILTERS': True,
 }
 ```
-```
+````
+
+````

 ### Cross-Referencing Pattern

@@ -578,11 +596,11 @@ For detailed configuration options, see:
 External resources:
 - [SQLAlchemy Documentation](https://docs.sqlalchemy.org/)
 - [Flask Configuration](https://flask.palletsprojects.com/config/)
-```
+````

 ### Writing Installation Guides

-```mdx
+````mdx
 ## Prerequisites

 :::warning
@@ -596,8 +614,10 @@ Ensure you have Python 3.9+ and Node.js 16+ installed before proceeding.
   git clone https://github.com/apache/superset.git
   cd superset
   ```
+````

 2. **Install Python dependencies**
+
   ```bash
   pip install -e .
   ```
@@ -611,7 +631,8 @@ Ensure you have Python 3.9+ and Node.js 16+ installed before proceeding.
 :::tip Success Check
 Navigate to http://localhost:8088 and login with admin/admin
 :::
-```
+
+````

 ### Documenting API Endpoints

@@ -630,9 +651,10 @@ Returns a list of charts.
 ```bash
 curl -X GET "http://localhost:8088/api/v1/chart/" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN"
-```
+````

 **Example Response:**
+
 ```json
 {
  "count": 42,
@@ -645,8 +667,10 @@ curl -X GET "http://localhost:8088/api/v1/chart/" \
  ]
 }
 ```
+
 ```

 ---

 **Note**: This documentation site serves as the primary resource for Superset users, administrators, and contributors. Always prioritize clarity, accuracy, and completeness when creating or updating documentation.
+```
@@ -66,6 +66,7 @@ yarn version:add:components 1.2.0
 ```

 What the script does:
+
 1. Refreshes auto-generated content via `generate:smart` (database pages, API reference, component pages).
 2. Calls `yarn docusaurus docs:version` (or the per-section equivalent) to snapshot the section.
 3. Freezes any data-file imports (`@site/static/*.json`, `../../data/*.json`) into a snapshot-local `_versioned_data/` dir so the historical version doesn't silently mutate when the source files change.
@@ -73,6 +74,7 @@ What the script does:
 5. Updates `versions-config.json` and `<section>_versions.json`.

 **Do NOT use** the native Docusaurus commands directly (`yarn docusaurus docs:version`), as they will:
+
 - ❌ Create version files but NOT update `versions-config.json`
 - ❌ Skip auto-gen refresh, freezing whatever was on disk
 - ❌ Skip data-import freezing, leaving the snapshot pointed at live data
@@ -82,9 +84,11 @@ What the script does:
 ### Managing Versions

 #### With Automated Scripts
+
 The automated scripts handle all configuration updates automatically. No manual editing required!

 #### Manual Configuration
+
 If creating versions manually, you'll need to:

 1. **Update `versions-config.json`** (or `docusaurus.config.ts` if not using dynamic config):
@@ -109,6 +113,7 @@ If creating versions manually, you'll need to:
 ### Removing a Version

 #### Using Automated Scripts (Recommended)
+
 ```bash
 # Main Documentation
 yarn version:remove:user_docs 1.0.0
@@ -124,6 +129,7 @@ yarn version:remove:components 1.0.0
 ```

 #### Manual Removal
+
 To manually remove a version:

 1. **Delete the version folder** from the appropriate location:
@@ -153,6 +159,7 @@ To manually remove a version:
 ### Version Configuration Examples

 #### Main Documentation (default plugin)
+
 ```typescript
 docs: {
  includeCurrentVersion: true,
@@ -174,6 +181,7 @@ docs: {
 ```

 #### Developer Docs & Components (custom plugins)
+
 ```typescript
 {
  id: 'developer_docs',
@@ -210,23 +218,28 @@ docs: {
 #### Version Not Showing After Creation

 If you accidentally used `yarn docusaurus docs:version` instead of `yarn version:add`:
+
 1. **Problem**: The version files were created but `versions-config.json` wasn't updated
 2. **Solution**: Either:
   - Revert the changes: `git restore user_docs_versions.json && rm -rf user_docs_versioned_docs/ user_docs_versioned_sidebars/`
   - Then use the correct command: `yarn version:add:user_docs <version>`

 For other issues:
+
 - **Restart the server**: Changes to version configuration require a server restart
 - **Check config file**: Ensure `versions-config.json` includes the new version
 - **Verify files exist**: Check that versioned docs folder was created

 #### Broken Links in Versioned Documentation
+
 When creating a new version, links in the documentation are preserved as-is. Common issues:
+
 - **Cross-section links**: Links between sections (e.g., from developer_docs to docs) need to be version-aware
 - **Absolute vs relative paths**: Use relative paths within the same section
 - **Version-specific URLs**: Update hardcoded URLs to use version variables

 To fix broken links:
+
 1. Use `type: 'doc'` with `docId` for version-aware navigation in navbar
 2. Use relative paths within the same documentation section
 3. Test all versions after creation to identify broken links
@@ -9,8 +9,8 @@ version: 2

 Users can configure automated alerts and reports to send dashboards or charts to an email recipient or Slack channel.

- *Alerts* are sent when a SQL condition is reached
- *Reports* are sent on a schedule
+- _Alerts_ are sent when a SQL condition is reached
+- _Reports_ are sent on a schedule

 Alerts and reports are disabled by default. To turn them on, you'll need to change configuration settings and install a suitable headless browser in your environment.

@@ -26,16 +26,17 @@ Alerts and reports are disabled by default. To turn them on, you'll need to chan
  - emails: `SMTP_*` settings
  - Slack messages: `SLACK_API_TOKEN`
 - Users can customize the email subject by including date code placeholders, which will automatically be replaced with the corresponding UTC date when the email is sent. To enable this functionality, activate the `"DATE_FORMAT_IN_EMAIL_SUBJECT"` [feature flag](/admin-docs/configuration/configuring-superset#feature-flags). This enables date formatting in email subjects, preventing all reporting emails from being grouped into the same thread (optional for the reporting feature).
-    - Use date codes from [strftime.org](https://strftime.org/) to create the email subject.
-    - If no date code is provided, the original string will be used as the email subject.
+  - Use date codes from [strftime.org](https://strftime.org/) to create the email subject.
+  - If no date code is provided, the original string will be used as the email subject.

 ##### Disable dry-run mode

-Screenshots will be taken but no messages actually sent as long as `ALERT_REPORTS_NOTIFICATION_DRY_RUN = True`, its default value in `docker/pythonpath_dev/superset_config.py`.  To disable dry-run mode and start receiving email/Slack notifications, set `ALERT_REPORTS_NOTIFICATION_DRY_RUN` to `False` in [superset config](https://github.com/apache/superset/blob/master/docker/pythonpath_dev/superset_config.py).
+Screenshots will be taken but no messages actually sent as long as `ALERT_REPORTS_NOTIFICATION_DRY_RUN = True`, its default value in `docker/pythonpath_dev/superset_config.py`. To disable dry-run mode and start receiving email/Slack notifications, set `ALERT_REPORTS_NOTIFICATION_DRY_RUN` to `False` in [superset config](https://github.com/apache/superset/blob/master/docker/pythonpath_dev/superset_config.py).

 #### In your `Dockerfile`

 You'll need to extend the Superset image to include a headless browser. Your options include:
+
 - Use Playwright with Chromium: this is the recommended approach as of version 4.1.x or greater. Playwright always uses Chromium — the `WEBDRIVER_TYPE` config setting has no effect when Playwright is active. A working example of a Dockerfile that installs these tools is provided under "Building your own production Docker image" on the [Docker Builds](/admin-docs/installation/docker-builds#building-your-own-production-docker-image) page. Enable the `PLAYWRIGHT_REPORTS_AND_THUMBNAILS` feature flag in your config to activate it.
 - Use Firefox (Selenium): you'll need to install geckodriver and Firefox. Set `WEBDRIVER_TYPE` to `"firefox"` in your `superset_config.py`.
 - Use Chrome (Selenium): you'll need to install Chrome. Set `WEBDRIVER_TYPE` to `"chrome"` in your `superset_config.py`.
@@ -131,11 +132,11 @@ Superset sends an HTTP POST with `Content-Type: application/json`:
  },
  "text": "Alert condition met: value exceeded threshold",
  "description": "Monthly revenue dropped below target",
-  "url": "https://your-superset-host/superset/dashboard/1/"
+  "url": "https://your-superset-host/dashboard/1/"
 }
 ```

-When a report includes file attachments (CSV, PDF, or PNG screenshots), the request is sent as `multipart/form-data` instead. In that case, each top-level payload field (`name`, `text`, `description`, `url`) becomes its own form field, and nested structures like `header` are serialized as a JSON-encoded string in their own field. Every attachment is added as a repeated form field named `files`:
+When a report includes file attachments (CSV, Excel, PDF, or PNG screenshots), the request is sent as `multipart/form-data` instead. In that case, each top-level payload field (`name`, `text`, `description`, `url`) becomes its own form field, and nested structures like `header` are serialized as a JSON-encoded string in their own field. Every attachment is added as a repeated form field named `files`:

 ```
 POST /webhook HTTP/1.1
@@ -204,7 +205,7 @@ You need to replace default values with your custom Redis, Slack and/or SMTP con
 Superset uses Celery beat and Celery worker(s) to send alerts and reports.

 - The beat is the scheduler that tells the worker when to perform its tasks. This schedule is defined when you create the alert or report.
- The worker will process the  tasks that need to be performed when an alert or report is fired.
+- The worker will process the tasks that need to be performed when an alert or report is fired.

 In the `CeleryConfig`, only the `beat_schedule` is relevant to this feature, the rest of the `CeleryConfig` can be changed for your needs.

@@ -244,6 +245,53 @@ class CeleryConfig:
    }
 CELERY_CONFIG = CeleryConfig

+# Scheduled reports share one deadline across browser readiness, capture/PDF
+# generation, delivery, and terminal-state persistence. The effective budget
+# for a schedule is min(this value, the schedule's working_timeout), so the
+# per-schedule field keeps its meaning as a user-facing cap. The default (one
+# hour) matches the historical working_timeout default, so upgrading changes
+# no default behavior; lower it to enforce a tighter report SLA.
+ALERT_REPORTS_EXECUTION_BUDGET_SECONDS = 3600
+
+# These reserves are part of (not additions to) the total budget and their sum
+# must be less than it. Readiness polling stops in time to leave capacity for
+# the later phases.
+ALERT_REPORTS_EXECUTION_CAPTURE_RESERVE_SECONDS = 60
+ALERT_REPORTS_EXECUTION_DELIVERY_RESERVE_SECONDS = 120
+ALERT_REPORTS_EXECUTION_CLEANUP_RESERVE_SECONDS = 30
+
+# Celery's hard limit leaves this additional window for terminal cleanup after
+# the soft limit, which equals the resolved execution budget (the configured
+# budget capped by each schedule's working_timeout).
+# ALERT_REPORTS_WORKING_TIME_OUT_KILL controls these Celery limits; disabling
+# it does not disable the application deadline above.
+ALERT_REPORTS_EXECUTION_HARD_TIMEOUT_GRACE_SECONDS = 30
+
+# Invalid budget/reserve combinations fail application startup instead of
+# allowing every scheduled report to fail later. A report Celery soft timeout
+# records ERROR and increments `reports.execute.celery_soft_timeout`; it does
+# not attempt an in-band customer error notification during the hard-limit
+# grace window. Alert schedules retain their existing timeout notifications.
+#
+# The application deadline is cooperative between synchronous phases. The
+# Celery limits provide the final preemption boundary when the worker pool
+# supports them; PDF construction is checked immediately before and after the
+# synchronous builder but cannot be interrupted inside that call.
+#
+# Sizing the budget against infrastructure limits:
+# - Kubernetes (or similar) pod termination grace must exceed
+#   budget + hard-timeout grace, or in-flight reports are killed mid-run on
+#   every deploy/node drain despite the application deadline.
+# - The web server's per-request timeout (e.g. gunicorn ``timeout``) bounds
+#   each individual chart data request made by the headless browser -- not
+#   the report as a whole. Readiness allowance beyond that per-request
+#   ceiling buys nothing for a single slow chart (its request dies at the
+#   web layer and the chart reaches an error state), but multi-chart and
+#   tiled captures legitimately accumulate total time well past it.
+
+# Screenshot-specific waits continue to apply to thumbnails and other
+# standalone screenshot calls. Scheduled reports derive their waits from the
+# shared execution deadline above.
 SCREENSHOT_LOCATE_WAIT = 100
 SCREENSHOT_LOAD_WAIT = 600

@@ -277,7 +325,7 @@ WEBDRIVER_OPTION_ARGS = [
 ]

 # This is for internal use, you can keep http
-WEBDRIVER_BASEURL = "http://superset:8088" # When running using docker compose use "http://superset_app:8088'
+WEBDRIVER_BASEURL = "http://superset:8088" # This is also the default for Docker Compose, where the app service is named "superset"
 # This is the link sent to the recipient. Change to your domain, e.g. https://superset.mydomain.com
 WEBDRIVER_BASEURL_USER_FRIENDLY = "http://localhost:8088"
 ```
@@ -287,8 +335,10 @@ to specify on behalf of which username to render the dashboards. In general, das
 are not accessible to unauthorized requests, that is why the worker needs to take over credentials
 of an existing user to take a snapshot.

-By default, Alerts and Reports are executed as the owner of the alert/report object. To use a fixed user account,
-just change the config as follows (`admin` in this example):
+By default, Alerts and Reports are executed as a physical user represented by the alert/report editors
+(giving priority to the last modifier, then the creator, then the first direct user editor, then a
+deterministic user from editor roles or groups). To use a fixed user account, just change the config
+as follows (`admin` in this example):

 ```python
 from superset.tasks.types import FixedExecutor
@@ -311,7 +361,7 @@ Please refer to `ExecutorType` in the codebase for other executor types.

 It's also possible to specify a minimum interval between each report's execution through the config file:

-``` python
+```python
 # Set a minimum interval threshold between executions (for each Alert/Report)
 # Value should be an integer
 ALERT_MINIMUM_INTERVAL = int(timedelta(minutes=10).total_seconds())
@@ -320,7 +370,7 @@ REPORT_MINIMUM_INTERVAL = int(timedelta(minutes=5).total_seconds())

 Alternatively, you can assign a function to `ALERT_MINIMUM_INTERVAL` and/or `REPORT_MINIMUM_INTERVAL`. This is useful to dynamically retrieve a value as needed:

-``` python
+```python
 def alert_dynamic_minimal_interval(**kwargs) -> int:
    """
    Define logic here to retrieve the value dynamically
@@ -333,7 +383,7 @@ ALERT_MINIMUM_INTERVAL = alert_dynamic_minimal_interval

 For security, Superset rewrites external links in alert/report email HTML so
 they go through a warning page before the user is navigated to the external
-site.  Internal links (matching your configured base URL) are not affected.
+site. Internal links (matching your configured base URL) are not affected.

 ```python
 # Disable external link redirection entirely (default: True)
@@ -345,21 +395,21 @@ to determine which hosts are internal.

 ## Troubleshooting

-There are many reasons that reports might not be working.  Try these steps to check for specific issues.
+There are many reasons that reports might not be working. Try these steps to check for specific issues.

 ### Confirm feature flag is enabled and you have sufficient permissions

-If you don't see "Alerts & Reports" under the *Manage* section of the Settings dropdown in the Superset UI, you need to enable the `ALERT_REPORTS` feature flag (see above). Enable another feature flag and check to see that it took effect, to verify that your config file is getting loaded.
+If you don't see "Alerts & Reports" under the _Manage_ section of the Settings dropdown in the Superset UI, you need to enable the `ALERT_REPORTS` feature flag (see above). Enable another feature flag and check to see that it took effect, to verify that your config file is getting loaded.

 Log in as an admin user to ensure you have adequate permissions.

 ### Check the logs of your Celery worker

-This is the best source of information about the problem.  In a docker compose deployment, you can do this with a command like `docker logs superset_worker --since 1h`.
+This is the best source of information about the problem. In a docker compose deployment, you can do this with a command like `docker logs superset_worker --since 1h`.

 ### Check web browser and webdriver installation

-To take a screenshot, the worker visits the dashboard or chart using a headless browser, then takes a screenshot. If you are able to send a chart as CSV or text but can't send as PNG, your problem may lie with the browser.
+To take a screenshot, the worker visits the dashboard or chart using a headless browser, then takes a screenshot. If you are able to send a chart as CSV, XLSX, or text but can't send as PNG, your problem may lie with the browser.

 If you are handling the installation of the headless browser on your own, do your own verification to ensure that the headless browser opens successfully in the worker environment.

@@ -367,7 +417,7 @@ If you are handling the installation of the headless browser on your own, do you

 One symptom of an invalid connection to an email server is receiving an error of `[Errno 110] Connection timed out` in your logs when the report tries to send.

-Confirm via testing that your outbound email configuration is correct.  Here is the simplest test, for an un-authenticated email SMTP email service running on port 25.  If you are sending over SSL, for instance, study how [Superset's codebase sends emails](https://github.com/apache/superset/blob/master/superset/utils/core.py#L818) and then test with those commands and arguments.
+Confirm via testing that your outbound email configuration is correct. Here is the simplest test, for an un-authenticated email SMTP email service running on port 25. If you are sending over SSL, for instance, study how [Superset's codebase sends emails](https://github.com/apache/superset/blob/master/superset/utils/core.py#L818) and then test with those commands and arguments.

 Start Python in your worker environment, replace all example values, and run:

@@ -393,16 +443,16 @@ This should send an email.

 Possible fixes:

- Some cloud hosts disable outgoing unauthenticated SMTP email to prevent spam.  For instance, [Azure blocks port 25 by default on some machines](https://learn.microsoft.com/en-us/azure/virtual-network/troubleshoot-outbound-smtp-connectivity). Enable that port or use another sending method.
+- Some cloud hosts disable outgoing unauthenticated SMTP email to prevent spam. For instance, [Azure blocks port 25 by default on some machines](https://learn.microsoft.com/en-us/azure/virtual-network/troubleshoot-outbound-smtp-connectivity). Enable that port or use another sending method.
 - Use another set of SMTP credentials that you verify works in this setup.

 ### Browse to your report from the worker

-The worker may be unable to reach the report. It will use the value of `WEBDRIVER_BASEURL` to browse to the report.  If that route is invalid, or presents an authentication challenge that the worker can't pass, the report screenshot will fail.
+The worker may be unable to reach the report. It will use the value of `WEBDRIVER_BASEURL` to browse to the report. If that route is invalid, or presents an authentication challenge that the worker can't pass, the report screenshot will fail.

-Check this by attempting to `curl` the URL of a report that you see in the error logs of your worker. For instance, from the worker environment, run `curl http://superset_app:8088/superset/dashboard/1/`. You may get different responses depending on whether the dashboard exists - for example, you may need to change the `1` in that URL. If there's a URL in your logs from a failed report screenshot, that's a good place to start. The goal is to determine a valid value for `WEBDRIVER_BASEURL` and determine if an issue like HTTPS or authentication is redirecting your worker.
+Check this by attempting to `curl` the URL of a report that you see in the error logs of your worker. For instance, from the worker environment, run `curl http://superset:8088/dashboard/1/`. You may get different responses depending on whether the dashboard exists - for example, you may need to change the `1` in that URL. If there's a URL in your logs from a failed report screenshot, that's a good place to start. The goal is to determine a valid value for `WEBDRIVER_BASEURL` and determine if an issue like HTTPS or authentication is redirecting your worker.

-In a deployment with authentication measures enabled like HTTPS and Single Sign-On, it may make sense to have the worker navigate directly to the Superset application running in the same location, avoiding the need to sign in.  For instance, you could use `WEBDRIVER_BASEURL="http://superset_app:8088"` for a docker compose deployment, and set `"force_https": False,` in your `TALISMAN_CONFIG`.
+In a deployment with authentication measures enabled like HTTPS and Single Sign-On, it may make sense to have the worker navigate directly to the Superset application running in the same location, avoiding the need to sign in. For instance, you could use `WEBDRIVER_BASEURL="http://superset:8088"` for a docker compose deployment, and set `"force_https": False,` in your `TALISMAN_CONFIG` — appropriate only for an isolated development stack or when HTTPS is enforced by a trusted proxy in front of Superset.

 ### Duplicate report deliveries

@@ -510,6 +560,7 @@ schedule the queries that have `schedule_info` in their JSON metadata. For sched
 Airflow, additional fields can be easily added to the configuration file above.

 :::resources
+
 - [Tutorial: Automated Alerts and Reporting via Slack/Email in Superset](https://dev.to/ngtduc693/apache-superset-topic-5-automated-alerts-and-reporting-via-slackemail-in-superset-2gbe)
 - [Blog: Integrating Slack alerts and Apache Superset for better data observability](https://medium.com/affinityanswers-tech/integrating-slack-alerts-and-apache-superset-for-better-data-observability-fd2f9a12c350)
-:::
+  :::
@@ -104,5 +104,6 @@ celery --app=superset.tasks.celery_app:app flower
 ```

 :::resources
+
 - [Blog: How to Set Up Global Async Queries (GAQ) in Apache Superset](https://medium.com/@ngigilevis/how-to-set-up-global-async-queries-gaq-in-apache-superset-a-complete-guide-9d2f4a047559)
-:::
+  :::
@@ -1,25 +1,7 @@
-{/*
-Licensed to the Apache Software Foundation (ASF) under one
-or more contributor license agreements.  See the NOTICE file
-distributed with this work for additional information
-regarding copyright ownership.  The ASF licenses this file
-to you under the Apache License, Version 2.0 (the
-"License"); you may not use this file except in compliance
-with the License.  You may obtain a copy of the License at
-
-  http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing,
-software distributed under the License is distributed on an
-"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, either express or implied.  See the License for the
-specific language governing permissions and limitations
-under the License.
-*/}
-
 ---
 title: AWS IAM Authentication
 sidebar_label: AWS IAM Authentication
+version: 1
 sidebar_position: 15
 ---

@@ -31,7 +13,7 @@ Cross-account IAM role assumption via STS `AssumeRole` is supported, allowing a

 ## Prerequisites

- Enable the `AWS_DATABASE_IAM_AUTH` feature flag in `superset_config.py`. IAM authentication is gated behind this flag; if it is disabled, connections using `aws_iam` fail with *"AWS IAM database authentication is not enabled."*
+- Enable the `AWS_DATABASE_IAM_AUTH` feature flag in `superset_config.py`. IAM authentication is gated behind this flag; if it is disabled, connections using `aws_iam` fail with _"AWS IAM database authentication is not enabled."_
  ```python
  FEATURE_FLAGS = {
      "AWS_DATABASE_IAM_AUTH": True,
@@ -66,14 +48,14 @@ IAM authentication is configured via the **encrypted_extra** field of the databa
 }
 ```

-| Field | Required | Description |
-|-------|----------|-------------|
-| `enabled` | Yes | Set to `true` to activate IAM auth |
-| `role_arn` | No | ARN of the cross-account IAM role to assume via STS. Omit for same-account auth |
-| `external_id` | No | External ID for the STS `AssumeRole` call, if required by the target role's trust policy |
-| `region` | Yes | AWS region of the database cluster |
-| `db_username` | Yes | The database username associated with the IAM identity |
-| `session_duration` | No | STS session duration in seconds (default: `3600`) |
+| Field              | Required | Description                                                                              |
+| ------------------ | -------- | ---------------------------------------------------------------------------------------- |
+| `enabled`          | Yes      | Set to `true` to activate IAM auth                                                       |
+| `role_arn`         | No       | ARN of the cross-account IAM role to assume via STS. Omit for same-account auth          |
+| `external_id`      | No       | External ID for the STS `AssumeRole` call, if required by the target role's trust policy |
+| `region`           | Yes      | AWS region of the database cluster                                                       |
+| `db_username`      | Yes      | The database username associated with the IAM identity                                   |
+| `session_duration` | No       | STS session duration in seconds (default: `3600`)                                        |

 ### Redshift (Serverless)

@@ -76,6 +76,21 @@ value defined in `DATA_CACHE_CONFIG`.
 Note, that by setting the cache timeout to `-1`, caching for charting data can be disabled, either
 per chart, dataset or database, or by default if set in `DATA_CACHE_CONFIG`.

+## Limiting Cached Result Size
+
+Very large chart or SQL query results can flood the cache backend (Redis/Memcached), evicting many
+smaller useful entries or exhausting memory. To cap the size of any single value written to the data
+cache, set `DATA_CACHE_MAX_VALUE_SIZE` (in bytes) in `superset_config.py`:
+
+```python
+DATA_CACHE_MAX_VALUE_SIZE = 10 * 1024 * 1024  # 10 MB
+```
+
+When a result's serialized size exceeds this threshold it is not written to the data cache — the
+chart still renders, but the next load re-queries the datasource instead of getting a cache hit. The
+`skip_cache_value_too_large` statsd metric is incremented each time this happens. Set to `None` (the
+default) to disable the check.
+
 ## SQL Lab Query Results

 Caching for SQL Lab query results is used when async queries are enabled and is configured using
@@ -139,6 +154,10 @@ from superset.tasks.types import FixedExecutor
 THUMBNAIL_EXECUTORS = [FixedExecutor("admin")]
 ```

+When using `ExecutorType.EDITOR`, thumbnails are rendered as a physical user represented by
+the dashboard or chart editors. Superset prioritizes the last modifier, then the creator,
+then the first direct user editor, then a deterministic user from editor roles or groups.
+
 For this feature you will need a cache system and celery workers. All thumbnails are stored on cache
 and are processed asynchronously by the workers.

@@ -179,10 +198,10 @@ WEBDRIVER_BASEURL = "https://superset.company.com"

 To control which user account is used for rendering thumbnails and warming up caches, configure
 `THUMBNAIL_EXECUTORS` and `CACHE_WARMUP_EXECUTORS`. Each accepts a list of executor types (which
-resolve to an owner, creator, modifier, or the currently-logged-in user) and/or a `FixedExecutor`
-pinned to a specific username. By default, thumbnails render as the current user
-(`ExecutorType.CURRENT_USER`) and cache warmup runs as the chart/dashboard owner
-(`ExecutorType.OWNER`).
+resolve to an editor, creator, modifier, or the currently-logged-in user) and/or a
+`FixedExecutor` pinned to a specific username. By default, thumbnails render as the current user
+(`ExecutorType.CURRENT_USER`) and cache warmup uses editor-based execution
+(`ExecutorType.EDITOR`) where executor-based cache warmup is used.

 To force both to run as a dedicated service account (`admin` in this example):

@@ -304,6 +323,7 @@ While database-backed operations work reliably, the Redis backend is recommended
 deployments where low latency and reduced database load are important.

 :::resources
+
 - [Blog: The Data Engineer's Guide to Lightning-Fast Superset Dashboards](https://preset.io/blog/the-data-engineers-guide-to-lightning-fast-apache-superset-dashboards/)
 - [Blog: Accelerating Dashboards with Materialized Views](https://preset.io/blog/accelerating-apache-superset-dashboards-with-materialized-views/)
-:::
+  :::
@@ -97,6 +97,50 @@ for more information on how to configure it.

 At the very least, you'll want to change `SECRET_KEY` and `SQLALCHEMY_DATABASE_URI`. Continue reading for more about each of these.

+## Chart-data query timing
+
+Set `CHART_DATA_INCLUDE_TIMING = True` to add an optional versioned timing object
+to every successful JSON query result returned by the chart-data API. The setting
+is `False` by default, so enabling it is an explicit API-contract choice for an
+operator. File exports, streaming responses, and HTTP error responses do not
+include this object.
+
+```json
+{
+  "timing": {
+    "version": 1,
+    "query": {
+      "query_planning_ms": 1.23,
+      "cache_resolution_ms": 0.45,
+      "data_acquisition_ms": null,
+      "payload_assembly_ms": 0.67,
+      "total_ms": 2.98
+    }
+  }
+}
+```
+
+Durations are milliseconds rounded to two decimal places. A numeric `0.0`
+means that the corresponding stage ran but rounded below that precision;
+`null` means it did not apply. For example, `data_acquisition_ms` is null for
+a normal dataframe cache hit, while metadata-only results have null phase values
+and a numeric total.
+
+The phases have fixed ownership: `query_planning_ms` includes Jinja rendering,
+row-level-security transformation, and cache identity; `cache_resolution_ms`
+includes cache lookup, compatibility policy, deserialization, and rehydration;
+`data_acquisition_ms` includes database work and annotation dependencies; and
+`payload_assembly_ms` includes response shaping and AUTO-currency fallback.
+
+`total_ms` is measured over one continuous per-query execution interval. It
+contains the exposed stages and unattributed work such as query-result cache
+persistence, so it is not the sum of the phase values. Query-context cache
+persistence is excluded. The total also excludes request parsing,
+authorization, contribution-total work before the per-query loop, client
+post-processing, JSON serialization, network transfer, and background async
+producer execution. Additive optional fields can preserve version 1; a field
+rename, removal, or semantic change requires a new version.
+
 ## Specifying a SECRET_KEY

 ### Adding an initial SECRET_KEY
@@ -149,10 +193,10 @@ database engine on a separate host or container.

 Superset supports the following database engines/versions:

-| Database Engine                           | Supported Versions                       |
-| ----------------------------------------- | ---------------------------------------- |
-| [PostgreSQL](https://www.postgresql.org/) | 10.X, 11.X, 12.X, 13.X, 14.X, 15.X, 16.X |
-| [MySQL](https://www.mysql.com/)           | 5.7, 8.X                                 |
+| Database Engine                           | Supported Versions                             |
+| ----------------------------------------- | ---------------------------------------------- |
+| [PostgreSQL](https://www.postgresql.org/) | 10.X, 11.X, 12.X, 13.X, 14.X, 15.X, 16.X, 17.X |
+| [MySQL](https://www.mysql.com/)           | 5.7, 8.X                                       |

 Use the following database drivers and connection strings:

@@ -225,7 +269,7 @@ RequestHeader set X-Forwarded-Proto "https"

 ## Configuring the application root

-*Please be advised that this feature is in BETA.*
+_Please be advised that this feature is in BETA._

 Superset supports running the application under a non-root path. The root path
 prefix can be specified in one of three ways:
@@ -312,10 +356,13 @@ AUTH_USER_REGISTRATION_ROLE = "Public"
 ```

 In case you want to assign the `Admin` role on new user registration, it can be assigned as follows:
+
 ```python
 AUTH_USER_REGISTRATION_ROLE = "Admin"
 ```
+
 If you encounter the [issue](https://github.com/apache/superset/issues/13243) of not being able to list users from the Superset main page settings, although a newly registered user has an `Admin` role, please re-run `superset init` to sync the required permissions. Below is the command to re-run `superset init` using docker compose.
+
 ```
 docker-compose exec superset superset init
 ```
@@ -549,6 +596,25 @@ CELERY_BEAT_SCHEDULE = {

 Adjust `retention_period_days` to control how long query rows are kept. Companion opt-in tasks (`prune_logs`, `prune_tasks`) exist for pruning the logs and tasks tables; see the commented-out examples in `superset/config.py`. Without enabling these tasks, the metadata database will grow unbounded over time.

+## Dashboard Layout Size Limit
+
+Each dashboard stores its layout (the position, size, and nesting of every chart, row, and tab) as a JSON blob in the metadata database. Superset caps the length of this serialized blob with `SUPERSET_DASHBOARD_POSITION_DATA_LIMIT`, which defaults to `65535`:
+
+```python
+SUPERSET_DASHBOARD_POSITION_DATA_LIMIT = 65535
+```
+
+This is a Python-level cap (65535 is 2¹⁶ − 1), independent of the database column capacity — the `position_json` column is a `MEDIUMTEXT`, which holds far more. When the serialized layout reaches this limit, the editor blocks the save and reports the current length, the limit, and this setting's name. A warning is shown once the layout passes 90% of the limit.
+
+Large dashboards — for example, many charts spread across nested tabs — can exceed the default. Because the underlying column comfortably stores larger values, you can safely raise the limit:
+
+```python
+SUPERSET_DASHBOARD_POSITION_DATA_LIMIT = 131072  # double the default
+```
+
+Alternatively, split a very large dashboard into several smaller ones. Note that this check is enforced when saving layout edits in the UI; a dashboard imported from a ZIP with an oversized layout will load and render, but cannot be edited and re-saved until the limit is raised.
+
 :::resources
+
 - [Blog: Feature Flags in Apache Superset](https://preset.io/blog/feature-flags-in-apache-superset-and-preset/)
-:::
+  :::
@@ -22,10 +22,10 @@ The current list of countries can be found in the src

 The Country Maps visualization already ships with the maps for the following countries:

-<ul style={{columns: 3}}>
-{countriesData.countries.map((country, index) => (
-  <li key={index}>{country}</li>
-))}
+<ul style={{ columns: 3 }}>
+  {countriesData.countries.map((country, index) => (
+    <li key={index}>{country}</li>
+  ))}
 </ul>

 ## Adding a New Country
@@ -7,7 +7,7 @@ version: 1

 import featureFlags from '@site/static/feature-flags.json';

-export const FlagTable = ({flags}) => (
+export const FlagTable = ({ flags }) => (
  <table>
    <thead>
      <tr>
@@ -17,14 +17,21 @@ export const FlagTable = ({flags}) => (
      </tr>
    </thead>
    <tbody>
-      {flags.map((flag) => (
+      {flags.map(flag => (
        <tr key={flag.name}>
-          <td><code>{flag.name}</code></td>
-          <td><code>{flag.default ? 'True' : 'False'}</code></td>
+          <td>
+            <code>{flag.name}</code>
+          </td>
+          <td>
+            <code>{flag.default ? 'True' : 'False'}</code>
+          </td>
          <td>
            {flag.description}
            {flag.docs && (
-              <> (<a href={flag.docs}>docs</a>)</>
+              <>
+                {' '}
+                (<a href={flag.docs}>docs</a>)
+              </>
            )}
          </td>
        </tr>
@@ -50,12 +57,12 @@ FEATURE_FLAGS = {

 Feature flags progress through lifecycle stages:

-| Stage | Description |
-|-------|-------------|
+| Stage           | Description                                                                    |
+| --------------- | ------------------------------------------------------------------------------ |
 | **Development** | Experimental features under active development. May be incomplete or unstable. |
-| **Testing** | Feature complete but undergoing testing. Usable but may contain bugs. |
-| **Stable** | Production-ready features. Safe for all deployments. |
-| **Deprecated** | Features scheduled for removal. Migrate away from these. |
+| **Testing**     | Feature complete but undergoing testing. Usable but may contain bugs.          |
+| **Stable**      | Production-ready features. Safe for all deployments.                           |
+| **Deprecated**  | Features scheduled for removal. Migrate away from these.                       |

 ---

@@ -148,10 +148,10 @@ datasets by saving the following YAML to file and then running the **import_data

 ```yaml
 databases:
- database_name: main
-  tables:
-  - table_name: random_time_series
-    columns:
-    - column_name: ds
-      verbose_name: datetime
+  - database_name: main
+    tables:
+      - table_name: random_time_series
+        columns:
+          - column_name: ds
+            verbose_name: datetime
 ```
@@ -18,14 +18,44 @@ DECKGL_BASE_MAP = [
    ['tile://https://your_personal_url/{z}/{x}/{y}.png', 'MyTile']
 ]
 ```
+
 Openstreetmap tiles url can be added without prefix.
+
 ```python
 DECKGL_BASE_MAP = [
    ['https://c.tile.openstreetmap.org/{z}/{x}/{y}.png', 'OpenStreetMap']
 ]
 ```

+[Yandex Tiles API](https://yandex.ru/maps-api/docs/tiles-api/request.html) can be used as a custom tile provider. The URL must include the `apikey` from the [Yandex Developer Dashboard](https://developer.tech.yandex.ru/services), tile coordinates (`x`, `y`, and `z`), and the required map layer parameters.
+
+```python
+DECKGL_BASE_MAP = [
+    [
+        "tile://https://tiles.api-maps.yandex.ru/v1/tiles/"
+        "?apikey=YOUR_YANDEX_API_KEY"
+        "&lang=ru_RU"
+        "&x={x}&y={y}&z={z}"
+        "&l=map"
+        "&projection=web_mercator"
+        "&maptype=map",
+        "Yandex Maps - Web Mercator",
+    ],
+    [
+        "tile://https://tiles.api-maps.yandex.ru/v1/tiles/"
+        "?apikey=YOUR_YANDEX_API_KEY"
+        "&lang=ru_RU"
+        "&x={x}&y={y}&z={z}"
+        "&l=map"
+        "&projection=wgs84_mercator"
+        "&maptype=map",
+        "Yandex Maps - WGS84 Mercator",
+    ],
+]
+```
+
 Default values are:
+
 ```python
 DECKGL_BASE_MAP = [
    ['https://tile.openstreetmap.org/{z}/{x}/{y}.png', 'Streets (OSM)'],
@@ -46,6 +76,7 @@ Setting `DECKGL_BASE_MAP` overwrite default values
 :::

 After defining your map tiles, set them in these variables:
+
 - `CORS_OPTIONS`
 - `connect-src` of `TALISMAN_CONFIG` and `TALISMAN_CONFIG_DEV` variables.

@@ -56,6 +87,7 @@ CORS_OPTIONS: dict[Any, Any] = {
        "https://tile.openstreetmap.org",
        "https://tile.osm.ch",
        "https://your_personal_url/{z}/{x}/{y}.png",
+        "https://tiles.api-maps.yandex.ru",
    ]
 }

@@ -72,6 +104,7 @@ TALISMAN_CONFIG = {
            "https://tile.openstreetmap.org",
            "https://tile.osm.ch",
            "https://your_personal_url/{z}/{x}/{y}.png",
+            "https://tiles.api-maps.yandex.ru",
        ],
        ...
 }
@@ -55,11 +55,11 @@ The MCP server runs as a separate process alongside Superset:
 superset mcp run --host 127.0.0.1 --port 5008
 ```

-| Flag | Default | Description |
-|------|---------|-------------|
-| `--host` | `127.0.0.1` | Host to bind to |
-| `--port` | `5008` | Port to bind to |
-| `--debug` | off | Enable debug logging |
+| Flag      | Default     | Description          |
+| --------- | ----------- | -------------------- |
+| `--host`  | `127.0.0.1` | Host to bind to      |
+| `--port`  | `5008`      | Port to bind to      |
+| `--debug` | off         | Enable debug logging |

 The endpoint is available at `http://<host>:<port>/mcp`.

@@ -99,7 +99,7 @@ See [Connecting AI Clients](#connecting-ai-clients) for Claude Code, Claude Web,
 ## Prerequisites

 - Apache Superset 5.0+ running and accessible
- Python 3.10+
+- Python 3.11+
 - The `fastmcp` package (`pip install fastmcp`)

 ---
@@ -193,22 +193,24 @@ MCP_JWT_AUDIENCE = "your-audience"

 :::warning
 Store `MCP_JWT_SECRET` securely. Never commit it to version control. Use environment variables:
+
 ```python
 import os
 MCP_JWT_SECRET = os.environ.get("MCP_JWT_SECRET")
 ```
+
 :::

 #### JWT claims

 The MCP server validates these standard claims:

-| Claim | Config Key | Description |
-|-------|-----------|-------------|
-| `exp` | -- | Expiration time (always validated) |
-| `iss` | `MCP_JWT_ISSUER` | Token issuer (optional but recommended) |
-| `aud` | `MCP_JWT_AUDIENCE` | Token audience (optional but recommended) |
-| `sub` | -- | Subject -- primary claim used to resolve the Superset user |
+| Claim | Config Key         | Description                                                |
+| ----- | ------------------ | ---------------------------------------------------------- |
+| `exp` | --                 | Expiration time (always validated)                         |
+| `iss` | `MCP_JWT_ISSUER`   | Token issuer (optional but recommended)                    |
+| `aud` | `MCP_JWT_AUDIENCE` | Token audience (optional but recommended)                  |
+| `sub` | --                 | Subject -- primary claim used to resolve the Superset user |

 #### User resolution

@@ -435,7 +437,7 @@ services:
  superset:
    image: apache/superset:latest
    ports:
-      - "8088:8088"
+      - '8088:8088'
    volumes:
      - ./superset_config.py:/app/superset_config.py
    environment:
@@ -443,9 +445,9 @@ services:

  mcp:
    image: apache/superset:latest
-    command: ["superset", "mcp", "run", "--host", "0.0.0.0", "--port", "5008"]
+    command: ['superset', 'mcp', 'run', '--host', '0.0.0.0', '--port', '5008']
    ports:
-      - "5008:5008"
+      - '5008:5008'
    volumes:
      - ./superset_config.py:/app/superset_config.py
    environment:
@@ -494,31 +496,31 @@ All MCP settings go in `superset_config.py`. Defaults are defined in `superset/m

 ### Core

-| Setting | Default | Description |
-|---------|---------|-------------|
-| `MCP_SERVICE_HOST` | `"localhost"` | Host the MCP server binds to |
-| `MCP_SERVICE_PORT` | `5008` | Port the MCP server binds to |
-| `MCP_SERVICE_URL` | `None` | Public base URL for MCP-generated links (set this when behind a reverse proxy) |
-| `MCP_DEBUG` | `False` | Enable debug logging |
-| `MCP_DEV_USERNAME` | -- | Superset username for development mode (no auth) |
-| `MCP_RBAC_ENABLED` | `True` | Enforce Superset's role-based access control on MCP tool calls. When `True`, each tool checks that the authenticated user has the required FAB permission before executing. Disable only for testing or trusted-network deployments. |
-| `MCP_DISABLED_TOOLS` | `set()` | Set of tool names to remove from the MCP server at startup. Disabled tools are never advertised to AI clients during tool discovery. Useful when a custom extension tool should replace a built-in Superset tool. See [Disabling built-in tools](#disabling-built-in-tools). |
+| Setting              | Default       | Description                                                                                                                                                                                                                                                                  |
+| -------------------- | ------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `MCP_SERVICE_HOST`   | `"localhost"` | Host the MCP server binds to                                                                                                                                                                                                                                                 |
+| `MCP_SERVICE_PORT`   | `5008`        | Port the MCP server binds to                                                                                                                                                                                                                                                 |
+| `MCP_SERVICE_URL`    | `None`        | Public base URL for MCP-generated links (set this when behind a reverse proxy)                                                                                                                                                                                               |
+| `MCP_DEBUG`          | `False`       | Enable debug logging                                                                                                                                                                                                                                                         |
+| `MCP_DEV_USERNAME`   | --            | Superset username for development mode (no auth)                                                                                                                                                                                                                             |
+| `MCP_RBAC_ENABLED`   | `True`        | Enforce Superset's role-based access control on MCP tool calls. When `True`, each tool checks that the authenticated user has the required FAB permission before executing. Disable only for testing or trusted-network deployments.                                         |
+| `MCP_DISABLED_TOOLS` | `set()`       | Set of tool names to remove from the MCP server at startup. Disabled tools are never advertised to AI clients during tool discovery. Useful when a custom extension tool should replace a built-in Superset tool. See [Disabling built-in tools](#disabling-built-in-tools). |

 ### Authentication

-| Setting | Default | Description |
-|---------|---------|-------------|
-| `MCP_AUTH_ENABLED` | `False` | Enable JWT authentication |
-| `MCP_JWT_ALGORITHM` | `"RS256"` | JWT signing algorithm (`RS256` or `HS256`) |
-| `MCP_JWKS_URI` | `None` | JWKS endpoint URL (RS256) |
-| `MCP_JWT_PUBLIC_KEY` | `None` | Static RSA public key string (RS256) |
-| `MCP_JWT_SECRET` | `None` | Shared secret string (HS256) |
-| `MCP_JWT_ISSUER` | `None` | Expected `iss` claim |
-| `MCP_JWT_AUDIENCE` | `None` | Expected `aud` claim |
-| `MCP_REQUIRED_SCOPES` | `[]` | Required JWT scopes |
-| `MCP_JWT_DEBUG_ERRORS` | `False` | Log detailed JWT errors server-side (never exposed in HTTP responses per RFC 6750) |
-| `MCP_AUTH_FACTORY` | `None` | Custom auth provider factory `(flask_app) -> auth_provider`. Takes precedence over built-in JWT |
-| `MCP_USER_RESOLVER` | `None` | Custom function `(app, access_token) -> username` to extract a Superset username from a validated JWT token. When `None`, the default resolver checks `preferred_username`, `username`, `email`, and `sub` claims in that order. |
+| Setting                | Default   | Description                                                                                                                                                                                                                      |
+| ---------------------- | --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `MCP_AUTH_ENABLED`     | `False`   | Enable JWT authentication                                                                                                                                                                                                        |
+| `MCP_JWT_ALGORITHM`    | `"RS256"` | JWT signing algorithm (`RS256` or `HS256`)                                                                                                                                                                                       |
+| `MCP_JWKS_URI`         | `None`    | JWKS endpoint URL (RS256)                                                                                                                                                                                                        |
+| `MCP_JWT_PUBLIC_KEY`   | `None`    | Static RSA public key string (RS256)                                                                                                                                                                                             |
+| `MCP_JWT_SECRET`       | `None`    | Shared secret string (HS256)                                                                                                                                                                                                     |
+| `MCP_JWT_ISSUER`       | `None`    | Expected `iss` claim                                                                                                                                                                                                             |
+| `MCP_JWT_AUDIENCE`     | `None`    | Expected `aud` claim                                                                                                                                                                                                             |
+| `MCP_REQUIRED_SCOPES`  | `[]`      | Required JWT scopes                                                                                                                                                                                                              |
+| `MCP_JWT_DEBUG_ERRORS` | `False`   | Log detailed JWT errors server-side (never exposed in HTTP responses per RFC 6750)                                                                                                                                               |
+| `MCP_AUTH_FACTORY`     | `None`    | Custom auth provider factory `(flask_app) -> auth_provider`. Takes precedence over built-in JWT                                                                                                                                  |
+| `MCP_USER_RESOLVER`    | `None`    | Custom function `(app, access_token) -> username` to extract a Superset username from a validated JWT token. When `None`, the default resolver checks `preferred_username`, `username`, `email`, and `sub` claims in that order. |

 ### Response Size Guard

@@ -529,6 +531,7 @@ MCP_RESPONSE_SIZE_CONFIG = {
    "enabled": True,
    "token_limit": 25000,
    "warn_threshold_pct": 80,
+    "max_list_items": 100,
    "excluded_tools": [
        "health_check",
        "get_chart_preview",
@@ -538,12 +541,13 @@ MCP_RESPONSE_SIZE_CONFIG = {
 }
 ```

-| Key | Default | Description |
-|-----|---------|-------------|
-| `enabled` | `True` | Enable response size checking |
-| `token_limit` | `25000` | Maximum estimated token count per response |
-| `warn_threshold_pct` | `80` | Warn when response exceeds this percentage of the limit |
-| `excluded_tools` | See above | Tools exempt from size checking (e.g., tools that return URLs, not data) |
+| Key                  | Default   | Description                                                                                                                                                                                                                                                                                                                                                                                                            |
+| -------------------- | --------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `enabled`            | `True`    | Enable response size checking                                                                                                                                                                                                                                                                                                                                                                                          |
+| `token_limit`        | `25000`   | Maximum estimated token count per response                                                                                                                                                                                                                                                                                                                                                                             |
+| `warn_threshold_pct` | `80`      | Warn when response exceeds this percentage of the limit                                                                                                                                                                                                                                                                                                                                                                |
+| `max_list_items`     | `100`     | Cap on list-field length (e.g. `charts`, `native_filters`) applied to the `get_*_info` tools before falling back to more aggressive truncation. Raised from a hardcoded 30 in earlier versions; the higher default only keeps more data before the same token-budget fallback kicks in, so it's not a breaking change, but tenants that tuned workflows around the old 30-item cap should lower this value explicitly. |
+| `excluded_tools`     | See above | Tools exempt from size checking (e.g., tools that return URLs, not data)                                                                                                                                                                                                                                                                                                                                               |

 ### Caching

@@ -569,18 +573,18 @@ MCP_CACHE_CONFIG = {
 }
 ```

-| Key | Default | Description |
-|-----|---------|-------------|
-| `enabled` | `False` | Enable response caching |
-| `CACHE_KEY_PREFIX` | `None` | Optional prefix for cache keys (useful for shared Redis) |
-| `list_tools_ttl` | `300` | Cache TTL in seconds for `tools/list` |
-| `list_resources_ttl` | `300` | Cache TTL for `resources/list` |
-| `list_prompts_ttl` | `300` | Cache TTL for `prompts/list` |
-| `read_resource_ttl` | `3600` | Cache TTL for `resources/read` |
-| `get_prompt_ttl` | `3600` | Cache TTL for `prompts/get` |
-| `call_tool_ttl` | `3600` | Cache TTL for `tools/call` |
-| `max_item_size` | `1048576` | Maximum cached item size in bytes (1 MB) |
-| `excluded_tools` | See above | Tools that are never cached (mutating or non-deterministic) |
+| Key                  | Default   | Description                                                 |
+| -------------------- | --------- | ----------------------------------------------------------- |
+| `enabled`            | `False`   | Enable response caching                                     |
+| `CACHE_KEY_PREFIX`   | `None`    | Optional prefix for cache keys (useful for shared Redis)    |
+| `list_tools_ttl`     | `300`     | Cache TTL in seconds for `tools/list`                       |
+| `list_resources_ttl` | `300`     | Cache TTL for `resources/list`                              |
+| `list_prompts_ttl`   | `300`     | Cache TTL for `prompts/list`                                |
+| `read_resource_ttl`  | `3600`    | Cache TTL for `resources/read`                              |
+| `get_prompt_ttl`     | `3600`    | Cache TTL for `prompts/get`                                 |
+| `call_tool_ttl`      | `3600`    | Cache TTL for `tools/call`                                  |
+| `max_item_size`      | `1048576` | Maximum cached item size in bytes (1 MB)                    |
+| `excluded_tools`     | See above | Tools that are never cached (mutating or non-deterministic) |

 ### Redis Store (Multi-Pod)

@@ -595,12 +599,12 @@ MCP_STORE_CONFIG = {
 }
 ```

-| Key | Default | Description |
-|-----|---------|-------------|
-| `enabled` | `False` | Enable Redis-backed store |
-| `CACHE_REDIS_URL` | `None` | Redis connection URL (e.g., `redis://redis-host:6379/0`) |
-| `event_store_max_events` | `100` | Maximum events retained per session |
-| `event_store_ttl` | `3600` | Event TTL in seconds |
+| Key                      | Default | Description                                              |
+| ------------------------ | ------- | -------------------------------------------------------- |
+| `enabled`                | `False` | Enable Redis-backed store                                |
+| `CACHE_REDIS_URL`        | `None`  | Redis connection URL (e.g., `redis://redis-host:6379/0`) |
+| `event_store_max_events` | `100`   | Maximum events retained per session                      |
+| `event_store_ttl`        | `3600`  | Event TTL in seconds                                     |

 ### Tool Search

@@ -623,15 +627,15 @@ MCP_TOOL_SEARCH_CONFIG = {
 }
 ```

-| Key | Default | Description |
-|-----|---------|-------------|
-| `enabled` | `True` | Enable tool search. When `False`, all tools are listed upfront |
-| `strategy` | `"bm25"` | Search ranking algorithm. `"bm25"` supports natural language; `"regex"` supports pattern matching |
-| `max_results` | `5` | Maximum tools returned per search query |
-| `always_visible` | See above | Tools that always appear in `list_tools`, regardless of search |
-| `include_schemas` | `False` | When `False` (default, "summary mode"), search results omit `inputSchema` entirely and include a lightweight `parameters_hint` listing top-level parameter names. Set to `True` to include the full `inputSchema` in search results. Full schemas are always used when a tool is actually invoked via `call_tool`. |
-| `compact_schemas` | `True` | Strip `$defs` / `$ref` and replace with `{"type": "object"}` in search results to reduce token cost. Only takes effect when `include_schemas=True` — ignored in summary mode. |
-| `max_description_length` | `300` | Truncate tool descriptions in search results (0 = no truncation). Applies in both summary and full-schema modes. |
+| Key                      | Default   | Description                                                                                                                                                                                                                                                                                                        |
+| ------------------------ | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `enabled`                | `True`    | Enable tool search. When `False`, all tools are listed upfront                                                                                                                                                                                                                                                     |
+| `strategy`               | `"bm25"`  | Search ranking algorithm. `"bm25"` supports natural language; `"regex"` supports pattern matching                                                                                                                                                                                                                  |
+| `max_results`            | `5`       | Maximum tools returned per search query                                                                                                                                                                                                                                                                            |
+| `always_visible`         | See above | Tools that always appear in `list_tools`, regardless of search                                                                                                                                                                                                                                                     |
+| `include_schemas`        | `False`   | When `False` (default, "summary mode"), search results omit `inputSchema` entirely and include a lightweight `parameters_hint` listing top-level parameter names. Set to `True` to include the full `inputSchema` in search results. Full schemas are always used when a tool is actually invoked via `call_tool`. |
+| `compact_schemas`        | `True`    | Strip `$defs` / `$ref` and replace with `{"type": "object"}` in search results to reduce token cost. Only takes effect when `include_schemas=True` — ignored in summary mode.                                                                                                                                      |
+| `max_description_length` | `300`     | Truncate tool descriptions in search results (0 = no truncation). Applies in both summary and full-schema modes.                                                                                                                                                                                                   |

 :::tip
 Set `enabled: False` to revert to the traditional "show all tools at once" behavior, which some clients or workflows may prefer.
@@ -668,16 +672,16 @@ The MCP server respects Superset's full role-based access control (RBAC). Every

 Each tool declares one or more required FAB permissions. The table below maps tool groups to their permission requirements:

-| Tool group | Required FAB permission |
-|------------|------------------------|
-| `list_charts`, `get_chart_info`, `get_chart_data`, `get_chart_preview`, `generate_chart`, `update_chart` | `can_read` on `Chart` (read), `can_write` on `Chart` (mutate) |
-| `list_dashboards`, `get_dashboard_info`, `generate_dashboard`, `add_chart_to_existing_dashboard` | `can_read` on `Dashboard` (read), `can_write` on `Dashboard` (mutate) |
-| `list_datasets`, `get_dataset_info`, `create_virtual_dataset` | `can_read` on `Dataset` (read), `can_write` on `Dataset` (mutate) |
-| `list_databases`, `get_database_info` | `can_read` on `Database` |
-| `execute_sql` | `can_execute_sql_query` on `SQLLab` |
-| `open_sql_lab_with_context` | `can_read` on `SQLLab` |
-| `save_sql_query` | `can_write` on `SavedQuery` |
-| `health_check` | None (public) |
+| Tool group                                                                                               | Required FAB permission                                               |
+| -------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------- |
+| `list_charts`, `get_chart_info`, `get_chart_data`, `get_chart_preview`, `generate_chart`, `update_chart` | `can_read` on `Chart` (read), `can_write` on `Chart` (mutate)         |
+| `list_dashboards`, `get_dashboard_info`, `generate_dashboard`, `add_chart_to_existing_dashboard`         | `can_read` on `Dashboard` (read), `can_write` on `Dashboard` (mutate) |
+| `list_datasets`, `get_dataset_info`, `create_virtual_dataset`                                            | `can_read` on `Dataset` (read), `can_write` on `Dataset` (mutate)     |
+| `list_databases`, `get_database_info`                                                                    | `can_read` on `Database`                                              |
+| `execute_sql`                                                                                            | `can_execute_sql_query` on `SQLLab`                                   |
+| `open_sql_lab_with_context`                                                                              | `can_read` on `SQLLab`                                                |
+| `save_sql_query`                                                                                         | `can_write` on `SavedQuery`                                           |
+| `health_check`                                                                                           | None (public)                                                         |

 To disable RBAC checking globally (for trusted-network deployments or testing), set:

@@ -704,13 +708,13 @@ This makes MCP activity fully auditable alongside regular Superset activity. The

 Every MCP request passes through a middleware stack before reaching the tool function. The default stack (assembled in `build_middleware_list()` in `server.py`) is:

-| Middleware | Purpose | Default |
-|------------|---------|---------|
-| `StructuredContentStripperMiddleware` | Strips `structuredContent` from responses for Claude.ai bridge compatibility | Enabled |
-| `LoggingMiddleware` | Logs each tool call with user, parameters, and duration | Enabled |
-| `GlobalErrorHandlerMiddleware` | Catches unhandled exceptions and sanitizes sensitive data before it reaches the client | Enabled |
-| `ResponseSizeGuardMiddleware` | Estimates token count, warns at 80% of limit, blocks at limit | Enabled (configurable via `MCP_RESPONSE_SIZE_CONFIG`) |
-| `ResponseCachingMiddleware` | Caches read-heavy tool responses (in-memory or Redis) | Disabled (enable via `MCP_CACHE_CONFIG`) |
+| Middleware                            | Purpose                                                                                | Default                                               |
+| ------------------------------------- | -------------------------------------------------------------------------------------- | ----------------------------------------------------- |
+| `StructuredContentStripperMiddleware` | Strips `structuredContent` from responses for Claude.ai bridge compatibility           | Enabled                                               |
+| `LoggingMiddleware`                   | Logs each tool call with user, parameters, and duration                                | Enabled                                               |
+| `GlobalErrorHandlerMiddleware`        | Catches unhandled exceptions and sanitizes sensitive data before it reaches the client | Enabled                                               |
+| `ResponseSizeGuardMiddleware`         | Estimates token count, warns at 80% of limit, blocks at limit                          | Enabled (configurable via `MCP_RESPONSE_SIZE_CONFIG`) |
+| `ResponseCachingMiddleware`           | Caches read-heavy tool responses (in-memory or Redis)                                  | Disabled (enable via `MCP_CACHE_CONFIG`)              |

 Additional middleware classes (`RateLimitMiddleware`, `FieldPermissionsMiddleware`, `PrivateToolMiddleware`) are implemented in `superset/mcp_service/middleware.py` but are not added to the default pipeline. They are available for operators who want to layer them in via a custom startup path.

@@ -8,12 +8,10 @@ version: 1

 ## CORS

-
 :::note
 In Superset versions prior to `5.x` you have to install to install `flask-cors` with `pip install flask-cors` to enable CORS support.
 :::

-
 The following keys in `superset_config.py` can be specified to configure CORS:

 - `ENABLE_CORS`: Must be set to `True` in order to enable CORS
@@ -54,15 +52,17 @@ Restart Superset for this configuration change to take effect.
 There are two approaches to making dashboards publicly accessible:

 **Option 1: Dataset-based access (simpler)**
+
 1. Set `PUBLIC_ROLE_LIKE = "Public"` in `superset_config.py`
 2. Grant the Public role access to the relevant datasets (Menu → Security → List Roles → Public)
 3. All published dashboards using those datasets become visible to anonymous users

 **Option 2: Dashboard-level access (selective control)**
+
 1. Set `PUBLIC_ROLE_LIKE = "Public"` in `superset_config.py`
-2. Add the `'DASHBOARD_RBAC': True` [Feature Flag](/admin-docs/configuration/feature-flags)
-3. Edit each dashboard's properties and add the "Public" role
-4. Only dashboards with the Public role explicitly assigned are visible to anonymous users
+2. Add the `'ENABLE_VIEWERS': True` [Feature Flag](/admin-docs/configuration/feature-flags)
+3. Edit each dashboard's properties and add the "Public" role subject as a viewer
+4. Only published dashboards with the Public role subject explicitly assigned are visible to anonymous users

 See the [Public role documentation](/admin-docs/security/#public) for more details.

@@ -75,7 +75,7 @@ Now anybody can directly access the dashboard's URL. You can embed it in an ifra
  width="600"
  height="400"
  seamless
-  frameBorder="0"
+  frameborder="0"
  scrolling="no"
  src="https://superset.my-domain.com/superset/dashboard/10/?standalone=1&height=400"
 >
@@ -123,17 +123,17 @@ running a custom auth postback endpoint), you can add the endpoints to `WTF_CSRF
 ## SSH Tunneling

 1. Turn on feature flag
-    - Change [`SSH_TUNNELING`](https://github.com/apache/superset/blob/eb8386e3f0647df6d1bbde8b42073850796cc16f/superset/config.py#L489) to `True`
-    - If you want to add more security when establishing the tunnel we allow users to overwrite the `SSHTunnelManager` class [here](https://github.com/apache/superset/blob/eb8386e3f0647df6d1bbde8b42073850796cc16f/superset/config.py#L507)
-    - You can also set the [`SSH_TUNNEL_LOCAL_BIND_ADDRESS`](https://github.com/apache/superset/blob/eb8386e3f0647df6d1bbde8b42073850796cc16f/superset/config.py#L508) this the host address where the tunnel will be accessible on your VPC
+   - Change [`SSH_TUNNELING`](https://github.com/apache/superset/blob/eb8386e3f0647df6d1bbde8b42073850796cc16f/superset/config.py#L489) to `True`
+   - If you want to add more security when establishing the tunnel we allow users to overwrite the `SSHTunnelManager` class [here](https://github.com/apache/superset/blob/eb8386e3f0647df6d1bbde8b42073850796cc16f/superset/config.py#L507)
+   - You can also set the [`SSH_TUNNEL_LOCAL_BIND_ADDRESS`](https://github.com/apache/superset/blob/eb8386e3f0647df6d1bbde8b42073850796cc16f/superset/config.py#L508) this the host address where the tunnel will be accessible on your VPC

 2. Create database w/ ssh tunnel enabled
-    - With the feature flag enabled you should now see ssh tunnel toggle.
-    - Click the toggle to enable SSH tunneling and add your credentials accordingly.
-        - Superset allows for two different types of authentication (Basic + Private Key). These credentials should come from your service provider.
+   - With the feature flag enabled you should now see ssh tunnel toggle.
+   - Click the toggle to enable SSH tunneling and add your credentials accordingly.
+     - Superset allows for two different types of authentication (Basic + Private Key). These credentials should come from your service provider.

 3. Verify data is flowing
-    - Once SSH tunneling has been enabled, go to SQL Lab and write a query to verify data is properly flowing.
+   - Once SSH tunneling has been enabled, go to SQL Lab and write a query to verify data is properly flowing.

 ## Domain Sharding

@@ -39,8 +39,6 @@ made available in the Jinja context:

 - `columns`: columns which to group by in the query
 - `filter`: filters applied in the query
- `from_dttm`: start `datetime` value from the selected time range (`None` if undefined). **Note:** Only available in virtual datasets when a time range filter is applied in Explore/Chart views—not available in standalone SQL Lab queries. (deprecated beginning in version 5.0, use `get_time_filter` instead)
- `to_dttm`: end `datetime` value from the selected time range (`None` if undefined). **Note:** Only available in virtual datasets when a time range filter is applied in Explore/Chart views—not available in standalone SQL Lab queries. (deprecated beginning in version 5.0, use `get_time_filter` instead)
 - `groupby`: columns which to group by in the query (deprecated)
 - `metrics`: aggregate expressions in the query
 - `row_limit`: row limit of the query
@@ -49,85 +47,26 @@ made available in the Jinja context:
 - `time_column`: temporal column of the query (`None` if undefined)
 - `time_grain`: selected time grain (`None` if undefined)

-For example, to add a time range to a virtual dataset, you can write the following:
+For example, to add a time range to a virtual dataset, use the `get_time_filter` macro:

 ```sql
+{% set tf = get_time_filter("dttm_col") %}
 SELECT *
 FROM tbl
-WHERE dttm_col > '{{ from_dttm }}' and dttm_col < '{{ to_dttm }}'
+WHERE dttm_col > {{ tf.from_expr }} AND dttm_col <= {{ tf.to_expr }}
 ```

-You can also use [Jinja's logic](https://jinja.palletsprojects.com/en/2.11.x/templates/#tests)
-to make your query robust to clearing the timerange filter:
-
-```sql
-SELECT *
-FROM tbl
-WHERE (
-    {% if from_dttm is not none %}
-        dttm_col > '{{ from_dttm }}' AND
-    {% endif %}
-    {% if to_dttm is not none %}
-        dttm_col < '{{ to_dttm }}' AND
-    {% endif %}
-    1 = 1
-)
-```
-
-The `1 = 1` at the end ensures a value is present for the `WHERE` clause even when
-the time filter is not set. For many database engines, this could be replaced with `true`.
-
 Note that the Jinja parameters are called within _double_ brackets in the query and with
 _single_ brackets in the logic blocks.

 ### Understanding Context Availability

-Some Jinja variables like `from_dttm`, `to_dttm`, and `filter` are **only available when a chart or dashboard provides them**. They are populated from:
+Some Jinja variables like `filter` are **only available when a chart or dashboard provides them**. They are populated from:

 - Time range filters applied in Explore/Chart views
 - Dashboard native filters
 - Filter components

-**These variables are NOT available in standalone SQL Lab queries** because there's no filter context. If you try to use `{{ from_dttm }}` directly in SQL Lab, you'll get an "undefined parameter" error.
-
-#### Testing Time-Filtered Queries in SQL Lab
-
-To test queries that use time variables in SQL Lab, you have several options:
-
-**Option 1: Use Jinja defaults (recommended)**
-
-```sql
-SELECT *
-FROM tbl
-WHERE dttm_col > '{{ from_dttm | default("2024-01-01", true) }}'
-  AND dttm_col < '{{ to_dttm | default("2024-12-31", true) }}'
-```
-
-**Option 2: Use SQL Lab Parameters**
-
-Set parameters in the SQL Lab UI (Parameters menu):
-```json
-{
-  "from_dttm": "2024-01-01",
-  "to_dttm": "2024-12-31"
-}
-```
-
-**Option 3: Use `{% set %}` for testing**
-
-```sql
-{% set from_dttm = "2024-01-01" %}
-{% set to_dttm = "2024-12-31" %}
-SELECT *
-FROM tbl
-WHERE dttm_col > '{{ from_dttm }}' AND dttm_col < '{{ to_dttm }}'
-```
-
-:::tip
-When you save a SQL Lab query as a virtual dataset and use it in a chart with time filters,
-the actual filter values will override any defaults or test values you set.
-:::
-
 To add custom functionality to the Jinja context, you need to overload the default Jinja
 context in your environment by defining the `JINJA_CONTEXT_ADDONS` in your superset configuration
 (`superset_config.py`). Objects referenced in this dictionary are made available for users to use
@@ -151,7 +90,7 @@ In the UI you can assign a set of parameters as JSON
 The parameters become available in your SQL (example: `SELECT * FROM {{ my_table }}` ) by using Jinja templating syntax.
 SQL Lab template parameters are stored with the dataset as `TEMPLATE PARAMETERS`.

-There is a special ``_filters`` parameter which can be used to test filters used in the jinja template.
+There is a special `_filters` parameter which can be used to test filters used in the jinja template.

 ```json
 {
@@ -172,7 +111,7 @@ WHERE action in {{ filter_values('action_type')|where_in }}
 GROUP BY action
 ```

-Note ``_filters`` is not stored with the dataset. It's only used within the SQL Lab UI.
+Note `_filters` is not stored with the dataset. It's only used within the SQL Lab UI.

 Besides default Jinja templating, SQL lab also supports self-defined template processor by setting
 the `CUSTOM_TEMPLATE_PROCESSORS` in your superset configuration. The values in this dictionary
@@ -306,16 +245,19 @@ cache key by adding the following parameter to your Jinja code:
 ```

 You can json-stringify the array by adding `|tojson` to your Jinja code:
+
 ```python
 {{ current_user_roles()|tojson }}
 ```

 You can use the `|where_in` filter to use your roles in a SQL statement. For example, if `current_user_roles()` returns `['admin', 'viewer']`, the following template:
+
 ```python
 SELECT * FROM users WHERE role IN {{ current_user_roles()|where_in }}
 ```

 Will be rendered as:
+
 ```sql
 SELECT * FROM users WHERE role IN ('admin', 'viewer')
 ```
@@ -341,6 +283,7 @@ Always treat `url_param()` values as untrusted input. Escaping behaviour varies
 {% if cc not in ('US', 'ES', 'FR') %}{% set cc = 'US' %}{% endif %}
 WHERE country_code = '{{ cc }}'
 ```
+
 :::

 Here's a concrete example:
@@ -425,6 +368,7 @@ This is useful if:
    AND full_name LIKE '{{ filter.get('val') | replace("'", "''") }}'
 {%- endif -%}
 ```
+
 :::

 Here's a concrete example:
@@ -479,17 +423,20 @@ Here's a concrete example:

 ### Time Filter

-The `{{ get_time_filter() }}` macro returns the time filter applied to a specific column. This is useful if you want
-to handle time filters inside the virtual dataset, as by default the time filter is placed on the outer query. This can
-considerably improve performance, as many databases and query engines are able to optimize the query better
-if the temporal filter is placed on the inner query, as opposed to the outer query.
+The `{{ get_time_filter() }}` macro is the standard way to reference the selected time range
+in a virtual dataset. It returns a `TimeFilter` object whose `from_expr` and `to_expr`
+properties are fully-formatted SQL expressions for the start and end of the range — use them
+directly in your `WHERE` clause without quoting.
+
+Placing the filter inside the virtual dataset (rather than relying on it being applied to
+the outer query) also gives many database engines the opportunity to optimize the query better.

 The macro takes the following parameters:

 - `column`: Name of the temporal column. Leave undefined to reference the time range from a Dashboard Native Time Range
  filter (when present).
 - `default`: The default value to fall back to if the time filter is not present, or has the value `No filter`
- `target_type`: The target temporal type as recognized by the target  database (e.g. `TIMESTAMP`, `DATE` or
+- `target_type`: The target temporal type as recognized by the target database (e.g. `TIMESTAMP`, `DATE` or
  `DATETIME`). If `column` is defined, the format will default to the type of the column. This is used to produce
  the format of the `from_expr` and `to_expr` properties of the returned `TimeFilter` object.
 - `strftime`: format using the `strftime` method of `datetime` for custom time formatting.
@@ -595,6 +542,7 @@ The parameter can be used in SQL Lab, or when fetching a metric from another dat
 Superset supports [builtin filters from the Jinja2 templating package](https://jinja.palletsprojects.com/en/stable/templates/#builtin-filters). Custom filters have also been implemented:

 ### Where In
+
 Parses a list into a SQL-compatible statement. This is useful with macros that return an array (for example the `filter_values` macro):

 ```
@@ -614,6 +562,7 @@ Dashboard filter without any value applied
 ### To Datetime

 Loads a string as a `datetime` object. This is useful when performing date operations. For example:
+
 ```
 {% set from_expr = get_time_filter("dttm", strftime="%Y-%m-%d").from_expr %}
 {% set to_expr = get_time_filter("dttm", strftime="%Y-%m-%d").to_expr %}
@@ -625,5 +574,6 @@ Loads a string as a `datetime` object. This is useful when performing date opera
 ```

 :::resources
+
 - [Blog: Intro to Jinja Templating in Apache Superset](https://preset.io/blog/intro-jinja-templating-apache-superset/)
-:::
+  :::
@@ -4,6 +4,7 @@ hide_title: true
 sidebar_position: 12
 version: 1
 ---
+
 # Theming Superset

 :::note
@@ -34,11 +35,13 @@ You can also extend with Superset-specific tokens (documented in the default the
 When `ENABLE_UI_THEME_ADMINISTRATION = True` is configured, administrators can manage system-wide themes directly from the UI:

 #### Setting System Themes
+
 - **System Default Theme**: Click the sun icon on any theme to set it as the system-wide default
 - **System Dark Theme**: Click the moon icon on any theme to set it as the system dark mode theme
 - **Automatic OS Detection**: When both default and dark themes are set, Superset automatically detects and applies the appropriate theme based on OS preferences

 #### Managing System Themes
+
 - System themes are indicated with special badges in the theme list
 - Only administrators with write permissions can modify system theme settings
 - Removing a system theme designation reverts to configuration file defaults
@@ -46,6 +49,7 @@ When `ENABLE_UI_THEME_ADMINISTRATION = True` is configured, administrators can m
 ### Applying Themes to Dashboards

 Once created, themes can be applied to individual dashboards:
+
 - Edit any dashboard and select your custom theme from the theme dropdown
 - Each dashboard can have its own theme, allowing for branded or context-specific styling

@@ -127,6 +131,7 @@ When `ENABLE_UI_THEME_ADMINISTRATION = True`:
 Superset validates theme JSON when it is saved, either through the UI or via configuration. If a theme contains invalid tokens or an unrecognized structure, Superset logs a warning and falls back to the built-in default theme rather than applying a broken configuration. This prevents a bad theme from rendering the application unusable.

 The fallback order is:
+
 1. **UI-configured system theme** (highest priority, if `ENABLE_UI_THEME_ADMINISTRATION = True`)
 2. **`THEME_DEFAULT` / `THEME_DARK`** from `superset_config.py`
 3. **Built-in Superset default theme** (always present as a safety net)
@@ -455,9 +460,10 @@ For programmatic theme management, Superset provides REST endpoints:
 These endpoints require appropriate permissions and are subject to RBAC controls.

 :::resources
+
 - [Video: Live Demo — Theming Apache Superset](https://www.youtube.com/watch?v=XsZAsO9tC3o)
 - [CSS and Theming](https://docs.preset.io/docs/css-and-theming) - Additional theming techniques and CSS customization
 - [Blog: Customizing Apache Superset Dashboards with CSS](https://preset.io/blog/customizing-superset-dashboards-with-css/)
 - [Blog: Customizing Dashboards with CSS — Tips and Tricks](https://preset.io/blog/customizing-apache-superset-dashboards-with-css-additional-tips-and-tricks/)
 - [Blog: Customizing Chart Colors](https://preset.io/blog/customizing-chart-colors-with-superset-and-preset/)
-:::
+  :::
@@ -5,7 +5,7 @@ sidebar_position: 1
 version: 1
 ---

-import useBaseUrl from "@docusaurus/useBaseUrl";
+import useBaseUrl from '@docusaurus/useBaseUrl';

 # Architecture

@@ -11,8 +11,7 @@ The Apache Superset community extensively uses Docker for development, release,
 and productionizing Superset. This page details our Docker builds and tag naming
 schemes to help users navigate our offerings.

-Images are built and pushed to the [Superset Docker Hub repository](
-https://hub.docker.com/r/apache/superset) using GitHub Actions.
+Images are built and pushed to the [Superset Docker Hub repository](https://hub.docker.com/r/apache/superset) using GitHub Actions.
 Different sets of images are built and/or published at different times:

 - **Published releases** (`release`): published using
@@ -112,12 +111,61 @@ USER superset
 CMD ["/app/docker/entrypoints/run-server.sh"]
 ```

+### Adding translations to a custom image
+
+The pattern above, a small Dockerfile that just extends `FROM apache/superset:...`, can't add
+translations after the fact. By the time an official tag is published, its frontend and backend
+layers have already had non-English translation files stripped out unless `BUILD_TRANSLATIONS`
+was set at build time (see below), and there's no `superset/translations` source tree left in the
+final image to compile from.
+
+To get translations into your own image, you need to build from the full Superset source (a
+clone or fork of this repo) rather than extend a published tag. The most efficient way to do this
+is to append your customizations as one more stage at the end of the repo's own `Dockerfile`, so
+Docker can reuse the cached upstream layers and only rebuild what your stage adds:
+
+```Dockerfile
+# Append this to the end of the repo's Dockerfile
+# Keep this tag in sync with the branch/tag of the repo you cloned, so the
+# translation files built from source match the keys the runtime expects:
+FROM apache/superset:5.0.0 AS my-custom-image
+USER root
+
+# Pull the translation files out of the earlier build stages (frontend
+# .json in `superset-node`, backend .mo in `python-translation-compiler`).
+# Those stages' own cleanup only matches single-character extensions, so
+# the source `.po` files can still be present here; strip them explicitly
+# so this stage only keeps the compiled translations.
+COPY --from=superset-node /app/superset/translations superset/translations
+COPY --from=python-translation-compiler /app/translations_mo superset/translations
+RUN find superset/translations -name '*.po' -delete
+
+USER superset
+```
+
+Then build with:
+
+```bash
+docker build --target=my-custom-image --build-arg=BUILD_TRANSLATIONS=true -t mysuperset:5.0.0 .
+```
+
+You can combine this with the database-driver/dependency pattern above by adding your own
+`RUN uv pip install ...` step before switching back to `USER superset`. See
+[issue #35959](https://github.com/apache/superset/issues/35959) for the discussion this pattern
+came out of, credit to the community for working it out.
+
 ## Key ARGs in Dockerfile

- `BUILD_TRANSLATIONS`: whether to build the translations into the image. For the
-  frontend build this tells webpack to strip out all locales other than `en` from
-  the `moment-timezone` library. For the backendthis skips compiling the
-  `*.po` translation files
+- `BUILD_TRANSLATIONS`: whether to compile non-English translations into the image.
+  When `true`, the frontend build converts the `*.po` files to locale JSON and the
+  backend runs `pybabel compile` to produce `*.mo` files; both source `*.po` files
+  are stripped afterward either way. When `false` (the default), those compile
+  steps are skipped and only `en` ships. This only takes effect when building the image from source
+  (`docker build` against this repo's own `Dockerfile`); it has no effect on a downstream
+  Dockerfile that just extends an already-published tag, see
+  "Adding translations to a custom image" above. Note that the backend `pybabel compile`
+  step ignores its exit code, so a `.po` file with a compile error won't fail the build;
+  check the build logs for `pybabel` warnings if a locale's backend strings aren't showing up.
 - `DEV_MODE`: whether to skip the frontend build, this is used by our `docker-compose` dev setup
  where we mount the local volume and build using `webpack` in `--watch` mode, meaning as you
  alter the code in the local file system, webpack, from within a docker image used for this
@@ -5,12 +5,13 @@ sidebar_position: 5
 version: 1
 ---

-import useBaseUrl from "@docusaurus/useBaseUrl";
+import useBaseUrl from '@docusaurus/useBaseUrl';

 # Using Docker Compose

-<img src={useBaseUrl("/img/docker-compose.webp" )} width="150" />
-<br /><br />
+<img src={useBaseUrl('/img/docker-compose.webp')} width="150" />
+<br />
+<br />

 :::caution
 Since `docker compose` is primarily designed to run a set of containers on **a single host**
@@ -29,23 +30,23 @@ way to launch a fully functioning **development environment** quickly.
 Note that there are 4 major ways we support to run `docker compose`:

 1. **docker-compose.yml:** for interactive development, where we mount your local folder with the
-  frontend/backend files that you can edit and experience the changes you
-  make in the app in real time
+   frontend/backend files that you can edit and experience the changes you
+   make in the app in real time
 1. **docker-compose-light.yml:** a lightweight configuration with minimal services (database,
-  Superset app, and frontend dev server) for development. Uses in-memory caching instead of Redis
-  and is designed for running multiple instances simultaneously
+   Superset app, and frontend dev server) for development. Uses in-memory caching instead of Redis
+   and is designed for running multiple instances simultaneously
 1. **docker-compose-non-dev.yml** where we just build a more immutable image based on the
-  local branch and get all the required images running. Changes in the local branch
-  at the time you fire this up will be reflected, but changes to the code
-  while `up` won't be reflected in the app
+   local branch and get all the required images running. Changes in the local branch
+   at the time you fire this up will be reflected, but changes to the code
+   while `up` won't be reflected in the app
 1. **docker-compose-image-tag.yml** where we fetch an image from docker-hub say for the
-  `5.0.0` release for instance, and fire it up so you can try it. Here what's in
-  the local branch has no effects on what's running, we just fetch and run
-  pre-built images from docker-hub. For `docker compose` to work along with the
-  Postgres image it boots up, you'll want to point to a `-dev`-suffixed TAG, as in
-  `export TAG=5.0.0-dev` or `export TAG=4.1.2-dev`, with `latest-dev` being the default.
-  The `dev` builds include the `psycopg2-binary` required to connect
-  to the Postgres database launched as part of the `docker compose` builds.
+   `5.0.0` release for instance, and fire it up so you can try it. Here what's in
+   the local branch has no effects on what's running, we just fetch and run
+   pre-built images from docker-hub. For `docker compose` to work along with the
+   Postgres image it boots up, you'll want to point to a `-dev`-suffixed TAG, as in
+   `export TAG=5.0.0-dev` or `export TAG=4.1.2-dev`, with `latest-dev` being the default.
+   The `dev` builds include the `psycopg2-binary` required to connect
+   to the Postgres database launched as part of the `docker compose` builds.

 More on these approaches after setting up the requirements for either.

@@ -92,7 +93,7 @@ like to try out Superset without making any code changes follow the steps docume
 :::tip
 By default, we mount the local superset-frontend folder here and run `npm install` as well
 as `npm run dev` which triggers webpack to compile/bundle the frontend code. Depending
-on your local setup, especially if you have less than 16GB of memory,  it may be very slow to
+on your local setup, especially if you have less than 16GB of memory, it may be very slow to
 perform those operations. In this case, we recommend you set the env var
 `BUILD_SUPERSET_FRONTEND_IN_DOCKER` to `false`, and to run this locally instead in a terminal.
 Simply trigger `npm i && npm run dev`, this should be MUCH faster.
@@ -121,6 +122,7 @@ NODE_PORT=9003 docker compose -p superset-3 -f docker-compose-light.yml up
 ```

 This configuration includes:
+
 - PostgreSQL database (internal network only)
 - Superset application server
 - Frontend development server with webpack hot reloading
@@ -165,7 +167,7 @@ looking to fire up.

 :::caution
 All of the content belonging to a Superset instance - charts, dashboards, users, etc. - is stored in
-its metadata database. In production, this database should be backed up.  The default installation
+its metadata database. In production, this database should be backed up. The default installation
 with docker compose will store that data in a PostgreSQL database contained in a Docker
 [volume](https://docs.docker.com/storage/volumes/), which is not backed up.

@@ -174,7 +176,7 @@ Again, **THE DOCKER-COMPOSE INSTALLATION IS NOT PRODUCTION-READY OUT OF THE BOX.
 :::

 You should see a stream of logging output from the containers being launched on your machine. Once
-this output slows, you should have a running instance of Superset on your local machine!  To avoid
+this output slows, you should have a running instance of Superset on your local machine! To avoid
 the wall of text on future runs, add the `-d` option to the end of the `docker compose up` command.

 ### Configuring Further
@@ -259,24 +261,24 @@ Superset (which is running in its docker container). Other databases may have sl
 configurations but gist would be same and boils down to 2 steps -

 1. **(Mac users may skip this step)** Configuring the local postgresql/database instance to accept
-public incoming connections. By default, postgresql only allows incoming connections from
-`localhost` and under Docker, unless you use `--network=host`, `localhost` will refer to different
-endpoints on the host machine and in a docker container respectively. Allowing postgresql to accept
-connections from the Docker involves making one-line changes to the files `postgresql.conf` and
-`pg_hba.conf`; you can find helpful links tailored to your OS / PG version on the web easily for
-this task. For Docker it suffices to only whitelist IPs `172.0.0.0/8` instead of `*`, but in any
-case you are _warned_ that doing this in a production database _may_ have disastrous consequences as
-you are opening your database to the public internet.
+   public incoming connections. By default, postgresql only allows incoming connections from
+   `localhost` and under Docker, unless you use `--network=host`, `localhost` will refer to different
+   endpoints on the host machine and in a docker container respectively. Allowing postgresql to accept
+   connections from the Docker involves making one-line changes to the files `postgresql.conf` and
+   `pg_hba.conf`; you can find helpful links tailored to your OS / PG version on the web easily for
+   this task. For Docker it suffices to only whitelist IPs `172.0.0.0/8` instead of `*`, but in any
+   case you are _warned_ that doing this in a production database _may_ have disastrous consequences as
+   you are opening your database to the public internet.
 1. Instead of `localhost`, try using `host.docker.internal` (Mac users, Ubuntu) or `172.18.0.1`
-(Linux users) as the hostname when attempting to connect to the database. This is a Docker internal
-detail -- what is happening is that, in Mac systems, Docker Desktop creates a dns entry for the
-hostname `host.docker.internal` which resolves to the correct address for the host machine, whereas
-in Linux this is not the case (at least by default). If neither of these 2 hostnames work then you
-may want to find the exact hostname you want to use, for that you can do `ifconfig` or
-`ip addr show` and look at the IP address of `docker0` interface that must have been created by
-Docker for you. Alternately if you don't even see the `docker0` interface try (if needed with sudo)
-`docker network inspect bridge` and see if there is an entry for `"Gateway"` and note the IP
-address.
+   (Linux users) as the hostname when attempting to connect to the database. This is a Docker internal
+   detail -- what is happening is that, in Mac systems, Docker Desktop creates a dns entry for the
+   hostname `host.docker.internal` which resolves to the correct address for the host machine, whereas
+   in Linux this is not the case (at least by default). If neither of these 2 hostnames work then you
+   may want to find the exact hostname you want to use, for that you can do `ifconfig` or
+   `ip addr show` and look at the IP address of `docker0` interface that must have been created by
+   Docker for you. Alternately if you don't even see the `docker0` interface try (if needed with sudo)
+   `docker network inspect bridge` and see if there is an entry for `"Gateway"` and note the IP
+   address.

 ## 4. To build or not to build

@@ -5,7 +5,7 @@ sidebar_position: 2
 version: 1
 ---

-import useBaseUrl from "@docusaurus/useBaseUrl";
+import useBaseUrl from '@docusaurus/useBaseUrl';

 # Installation Methods

--- a/Show More
+++ b/Show More