fix(playwright): Use actual viewport height for tiled screenshot scroll calculations

The configured SCREENSHOT_TILED_VIEWPORT_HEIGHT (default 2000px) was larger than
Playwright's actual browser viewport (~768-1200px), causing scroll increments to
skip content between tiles. Now we fetch the actual viewport height and use
min(configured, actual) for scroll calculations to ensure complete content coverage.

Added regression test to verify tiles properly cover all content when configured
viewport exceeds actual viewport size.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/commands/js-to-ts.md

@@ -0,0 +1,10 @@
+# JavaScript to TypeScript Migration Command
+
+## Usage
+```
+/js-to-ts <core-filename>
+```
+- `<core-filename>` - Path to CORE file relative to `superset-frontend/` (e.g., `src/utils/common.js`, `src/middleware/loggerMiddleware.js`)
+
+## Agent Instructions
+**See:** [../projects/js-to-ts/AGENT.md](../projects/js-to-ts/AGENT.md) for complete migration guide.

.claude/projects/js-to-ts/AGENT.md

@@ -0,0 +1,684 @@
+# JavaScript to TypeScript Migration Agent Guide
+
+**Complete technical reference for converting JavaScript/JSX files to TypeScript/TSX in Apache Superset frontend.**
+
+**Agent Role:** Atomic migration unit - migrate the core file + ALL related tests/mocks as one cohesive unit. Use `git mv` to preserve history, NO `git commit`. NO global import changes. Report results upon completion.
+
+---
+
+## 🎯 Migration Principles
+
+1. **Atomic migration units** - Core file + all related tests/mocks migrate together
+2. **Zero `any` types** - Use proper TypeScript throughout
+3. **Leverage existing types** - Reuse established definitions
+4. **Type inheritance** - Derivatives extend base component types
+5. **Strategic placement** - File types for maximum discoverability
+6. **Surgical improvements** - Enhance existing types during migration
+
+---
+
+## Step 0: Dependency Check (MANDATORY)
+
+**Command:**
+```bash
+grep -E "from '\.\./.*\.jsx?'|from '\./.*\.jsx?'|from 'src/.*\.jsx?'" superset-frontend/{filename}
+```
+
+**Decision:**
+- ✅ No matches → Proceed with atomic migration (core + tests + mocks)
+- ❌ Matches found → EXIT with dependency report (see format below)
+
+---
+
+## Step 1: Identify Related Files (REQUIRED)
+
+**Atomic Migration Scope:**
+For core file `src/utils/example.js`, also migrate:
+- `src/utils/example.test.js` / `src/utils/example.test.jsx`
+- `src/utils/example.spec.js` / `src/utils/example.spec.jsx`
+- `src/utils/__mocks__/example.js`
+- Any other related test/mock files found by pattern matching
+
+**Find all related test and mock files:**
+```bash
+# Pattern-based search for related files
+basename=$(basename {filename} .js)
+dirname=$(dirname superset-frontend/{filename})
+
+# Find test files
+find "$dirname" -name "${basename}.test.js" -o -name "${basename}.test.jsx"
+find "$dirname" -name "${basename}.spec.js" -o -name "${basename}.spec.jsx"
+
+# Find mock files  
+find "$dirname" -name "__mocks__/${basename}.js"
+find "$dirname" -name "${basename}.mock.js"
+```
+
+**Migration Requirement:** All discovered related files MUST be migrated together as one atomic unit.
+
+**Test File Creation:** If NO test files exist for the core file, CREATE a minimal test file using the following pattern:
+- Location: Same directory as core file
+- Name: `{basename}.test.ts` (e.g., `DebouncedMessageQueue.test.ts`)
+- Content: Basic test structure importing and testing the main functionality
+- Use proper TypeScript types in test file
+
+---
+
+## 🗺️ Type Reference Map
+
+### From `@superset-ui/core`
+```typescript
+// Data & Query
+QueryFormData, QueryData, JsonObject, AnnotationData, AdhocMetric
+LatestQueryFormData, GenericDataType, DatasourceType, ExtraFormData
+DataMaskStateWithId, NativeFilterScope, NativeFiltersState, NativeFilterTarget
+
+// UI & Theme  
+FeatureFlagMap, LanguagePack, ColorSchemeConfig, SequentialSchemeConfig
+```
+
+### From `@superset-ui/chart-controls`
+```typescript
+Dataset, ColumnMeta, ControlStateMapping
+```
+
+### From Local Types (`src/types/`)
+```typescript
+// Authentication
+User, UserWithPermissionsAndRoles, BootstrapUser, PermissionsAndRoles
+
+// Dashboard
+Dashboard, DashboardState, DashboardInfo, DashboardLayout, LayoutItem
+ComponentType, ChartConfiguration, ActiveFilters
+
+// Charts
+Chart, ChartState, ChartStatus, ChartLinkedDashboard, Slice, SaveActionType
+
+// Data
+Datasource, Database, Owner, Role
+
+// UI Components
+TagType, FavoriteStatus, Filter, ImportResourceName
+```
+
+### From Domain Types
+```typescript
+// src/dashboard/types.ts
+RootState, ChartsState, DatasourcesState, FilterBarOrientation
+ChartCrossFiltersConfig, ActiveTabs, MenuKeys
+
+// src/explore/types.ts  
+ExplorePageInitialData, ExplorePageState, ExploreResponsePayload, OptionSortType
+
+// src/SqlLab/types.ts
+[SQL Lab specific types]
+```
+
+---
+
+## 🏗️ Type Organization Strategy
+
+### Type Placement Hierarchy
+
+1. **Component-Colocated** (90% of cases)
+   ```typescript
+   // Same file as component
+   interface MyComponentProps {
+     title: string;
+     onClick: () => void;
+   }
+   ```
+
+2. **Feature-Shared**
+   ```typescript
+   // src/[domain]/components/[Feature]/types.ts
+   export interface FilterConfiguration {
+     filterId: string;
+     targets: NativeFilterTarget[];
+   }
+   ```
+
+3. **Domain-Wide**
+   ```typescript
+   // src/[domain]/types.ts
+   export interface ExploreFormData extends QueryFormData {
+     viz_type: string;
+   }
+   ```
+
+4. **Global**
+   ```typescript
+   // src/types/[TypeName].ts
+   export interface ApiResponse<T> {
+     result: T;
+     count?: number;
+   }
+   ```
+
+### Type Discovery Commands
+```bash
+# Search existing types before creating
+find superset-frontend/src -name "types.ts" -exec grep -l "[TypeConcept]" {} \;
+grep -r "interface.*Props\|type.*Props" superset-frontend/src/
+```
+
+### Derivative Component Patterns
+
+**Rule:** Components that extend others should extend their type interfaces.
+
+```typescript
+// ✅ Base component type
+interface SelectProps {
+  value: string | number;
+  options: SelectOption[];
+  onChange: (value: string | number) => void;
+  disabled?: boolean;
+}
+
+// ✅ Derivative extends base
+interface ChartSelectProps extends SelectProps {
+  charts: Chart[];
+  onChartSelect: (chart: Chart) => void;
+}
+
+// ✅ Derivative with modified props  
+interface DatabaseSelectProps extends Omit<SelectProps, 'value' | 'onChange'> {
+  value: number;  // Narrowed type
+  onChange: (databaseId: number) => void;  // Specific signature
+}
+```
+
+**Common Patterns:**
+- **Extension:** `extends BaseProps` - adds new props
+- **Omission:** `Omit<BaseProps, 'prop'>` - removes props
+- **Modification:** `Omit<BaseProps, 'prop'> & { prop: NewType }` - changes prop type
+- **Restriction:** Override with narrower types (union → specific)
+
+---
+
+## 📋 Migration Recipe
+
+### Step 2: File Conversion
+```bash
+# Use git mv to preserve history
+git mv component.js component.ts
+git mv Component.jsx Component.tsx
+```
+
+### Step 3: Import & Type Setup
+```typescript
+// Import order (enforced by linting)
+import { FC, ReactNode } from 'react';
+import { JsonObject, QueryFormData } from '@superset-ui/core';
+import { Dataset } from '@superset-ui/chart-controls';
+import type { Dashboard } from 'src/types/Dashboard';
+```
+
+### Step 4: Function & Component Typing
+```typescript
+// Functions with proper parameter/return types
+export function processData(
+  data: Dataset[],
+  config: JsonObject
+): ProcessedData[] {
+  // implementation
+}
+
+// Component props with inheritance
+interface ComponentProps extends BaseProps {
+  data: Chart[];
+  onSelect: (id: number) => void;
+}
+
+const Component: FC<ComponentProps> = ({ data, onSelect }) => {
+  // implementation
+};
+```
+
+### Step 5: State & Redux Typing
+```typescript
+// Hooks with specific types
+const [data, setData] = useState<Chart[]>([]);
+const [selected, setSelected] = useState<number | null>(null);
+
+// Redux with existing RootState
+const mapStateToProps = (state: RootState) => ({
+  charts: state.charts,
+  user: state.user,
+});
+```
+
+---
+
+## 🧠 Type Debugging Strategies (Real-World Learnings)
+
+### The Evolution of Type Approaches
+When you hit type errors, follow this debugging evolution:
+
+#### 1. ❌ Idealized Union Types (First Attempt)
+```typescript
+// Looks clean but doesn't match reality
+type DatasourceInput = Datasource | QueryEditor;
+```
+**Problem**: Real calling sites pass variations, not exact types.
+
+#### 2. ❌ Overly Precise Types (Second Attempt)
+```typescript
+// Tried to match exact calling signatures
+type DatasourceInput =
+  | IDatasource  // From DatasourcePanel
+  | (QueryEditor & { columns: ColumnMeta[] });  // From SaveQuery
+```
+**Problem**: Too rigid, doesn't handle legacy variations.
+
+#### 3. ✅ Flexible Interface (Final Solution)
+```typescript
+// Captures what the function actually needs
+interface DatasourceInput {
+  name?: string | null;  // Allow null for compatibility
+  datasource_name?: string | null;  // Legacy variations
+  columns?: any[];  // Multiple column types accepted
+  database?: { id?: number };
+  // ... other optional properties
+}
+```
+**Success**: Works with all calling sites, focuses on function needs.
+
+### Type Debugging Process
+1. **Start with compilation errors** - they show exact mismatches
+2. **Examine actual usage** - look at calling sites, not idealized types  
+3. **Build flexible interfaces** - capture what functions need, not rigid contracts
+4. **Iterate based on downstream validation** - let calling sites guide your types
+
+---
+
+## 🚨 Anti-Patterns to Avoid
+
+```typescript
+// ❌ Never use any
+const obj: any = {};
+
+// ✅ Use proper types
+const obj: Record<string, JsonObject> = {};
+
+// ❌ Don't recreate base component props
+interface ChartSelectProps {
+  value: string;     // Duplicated from SelectProps
+  onChange: () => void;  // Duplicated from SelectProps
+  charts: Chart[];   // New prop
+}
+
+// ✅ Inherit and extend
+interface ChartSelectProps extends SelectProps {
+  charts: Chart[];   // Only new props
+}
+
+// ❌ Don't create ad-hoc type variations
+interface UserInfo {
+  name: string;
+  email: string;
+}
+
+// ✅ Extend existing types (DRY principle)
+import { User } from 'src/types/bootstrapTypes';
+type UserDisplayInfo = Pick<User, 'firstName' | 'lastName' | 'email'>;
+
+// ❌ Don't create overly rigid unions
+type StrictInput = ExactTypeA | ExactTypeB;
+
+// ✅ Create flexible interfaces for function parameters
+interface FlexibleInput {
+  // Focus on what the function actually needs
+  commonProperty: string;
+  optionalVariations?: any;  // Allow for legacy variations
+}
+```
+
+## 📍 DRY Type Guidelines (WHERE TYPES BELONG)
+
+### Type Placement Rules
+**CRITICAL**: Type variations must live close to where they belong, not scattered across files.
+
+#### ✅ Proper Type Organization
+```typescript
+// ❌ Don't create one-off interfaces in utility files
+// src/utils/datasourceUtils.ts
+interface DatasourceInput { /* custom interface */ }  // Wrong!
+
+// ✅ Use existing types or extend them in their proper domain
+// src/utils/datasourceUtils.ts
+import { IDatasource } from 'src/explore/components/DatasourcePanel';
+import { QueryEditor } from 'src/SqlLab/types';
+
+// Create flexible interface that references existing types
+interface FlexibleDatasourceInput {
+  // Properties that actually exist across variations
+}
+```
+
+#### Type Location Hierarchy
+1. **Domain Types**: `src/{domain}/types.ts` (dashboard, explore, SqlLab)
+2. **Component Types**: Co-located with components  
+3. **Global Types**: `src/types/` directory
+4. **Utility Types**: Only when they truly don't belong elsewhere
+
+#### ✅ DRY Type Patterns
+```typescript
+// ✅ Extend existing domain types
+interface SaveQueryData extends Pick<QueryEditor, 'sql' | 'dbId' | 'catalog'> {
+  columns: ColumnMeta[];  // Add what's needed
+}
+
+// ✅ Create flexible interfaces for cross-domain utilities
+interface CrossDomainInput {
+  // Common properties that exist across different source types
+  name?: string | null;  // Accommodate legacy null values
+  // Only include properties the function actually uses
+}
+```
+
+---
+
+## 🎯 PropTypes Auto-Generation (Elegant Approach)
+
+**IMPORTANT**: Superset has `babel-plugin-typescript-to-proptypes` configured to automatically generate PropTypes from TypeScript interfaces. Use this instead of manual PropTypes duplication!
+
+### ❌ Manual PropTypes Duplication (Avoid This)
+```typescript
+export interface MyComponentProps {
+  title: string;
+  count?: number;
+}
+
+// 8+ lines of manual PropTypes duplication 😱
+const propTypes = PropTypes.shape({
+  title: PropTypes.string.isRequired,
+  count: PropTypes.number,
+});
+
+export default propTypes;
+```
+
+### ✅ Auto-Generated PropTypes (Use This)
+```typescript
+import { InferProps } from 'prop-types';
+
+export interface MyComponentProps {
+  title: string;
+  count?: number;
+}
+
+// Single validator function - babel plugin auto-generates PropTypes! ✨
+export default function MyComponentValidator(props: MyComponentProps) {
+  return null; // PropTypes auto-assigned by babel-plugin-typescript-to-proptypes
+}
+
+// Optional: For consumers needing PropTypes type inference
+export type MyComponentPropsInferred = InferProps<typeof MyComponentValidator>;
+```
+
+### Migration Pattern for Type-Only Files
+
+**When migrating type-only files with manual PropTypes:**
+
+1. **Keep the TypeScript interfaces** (single source of truth)
+2. **Replace manual PropTypes** with validator function
+3. **Remove PropTypes imports** and manual shape definitions
+4. **Add InferProps import** if type inference needed
+
+**Example Migration:**
+```typescript
+// Before: 25+ lines with manual PropTypes duplication
+export interface AdhocFilterType { /* ... */ }
+const adhocFilterTypePropTypes = PropTypes.oneOfType([...]);
+
+// After: 3 lines with auto-generation
+export interface AdhocFilterType { /* ... */ }
+export default function AdhocFilterValidator(props: { filter: AdhocFilterType }) {
+  return null; // Auto-generated PropTypes by babel plugin
+}
+```
+
+### Component PropTypes Pattern
+
+**For React components, the babel plugin works automatically:**
+
+```typescript
+interface ComponentProps {
+  title: string;
+  onClick: () => void;
+}
+
+const MyComponent: FC<ComponentProps> = ({ title, onClick }) => {
+  // Component implementation
+};
+
+// PropTypes automatically generated by babel plugin - no manual work needed!
+export default MyComponent;
+```
+
+### Auto-Generation Benefits
+
+- ✅ **Single source of truth**: TypeScript interfaces drive PropTypes
+- ✅ **No duplication**: Eliminate 15-20 lines of manual PropTypes code
+- ✅ **Automatic updates**: Changes to TypeScript automatically update PropTypes
+- ✅ **Type safety**: Compile-time checking ensures PropTypes match interfaces
+- ✅ **Backward compatibility**: Existing JavaScript components continue working
+
+### Babel Plugin Configuration
+
+The plugin is already configured in `babel.config.js`:
+```javascript
+['babel-plugin-typescript-to-proptypes', { loose: true }]
+```
+
+**No additional setup required** - just use TypeScript interfaces and the plugin handles the rest!
+
+---
+
+## 🧪 Test File Migration Patterns
+
+### Test File Priority
+- **Always migrate test files** alongside production files
+- **Test files are often leaf nodes** - good starting candidates
+- **Create tests if missing** - Leverage new TypeScript types for better test coverage
+
+### Test-Specific Type Patterns
+```typescript
+// Mock interfaces for testing
+interface MockStore {
+  getState: () => Partial<RootState>;  // Partial allows minimal mocking
+}
+
+// Type-safe mocking for complex objects
+const mockDashboardInfo: Partial<DashboardInfo> as DashboardInfo = {
+  id: 123,
+  json_metadata: '{}',
+};
+
+// Sinon stub typing
+let postStub: sinon.SinonStub;
+beforeEach(() => {
+  postStub = sinon.stub(SupersetClient, 'post');
+});
+
+// Use stub reference instead of original method
+expect(postStub.callCount).toBe(1);
+expect(postStub.getCall(0).args[0].endpoint).toMatch('/api/');
+```
+
+### Test Migration Recipe
+1. **Migrate production file first** (if both need migration)
+2. **Update test imports** to point to `.ts/.tsx` files
+3. **Add proper mock typing** using `Partial<T> as T` pattern
+4. **Fix stub typing** - Use stub references, not original methods
+5. **Verify all tests pass** with TypeScript compilation
+
+---
+
+## 🔧 Type Conflict Resolution
+
+### Multiple Type Definitions Issue
+**Problem**: Same type name defined in multiple files causes compilation errors.
+
+**Example**: `DashboardInfo` defined in both:
+- `src/dashboard/reducers/types.ts` (minimal)
+- `src/dashboard/components/Header/types.ts` (different shape)  
+- `src/dashboard/types.ts` (complete - used by RootState)
+
+### Resolution Strategy
+1. **Identify the authoritative type**:
+   ```bash
+   # Find which type is used by RootState/main interfaces
+   grep -r "DashboardInfo" src/dashboard/types.ts
+   ```
+
+2. **Use import from authoritative source**:
+   ```typescript
+   // ✅ Import from main domain types
+   import { RootState, DashboardInfo } from 'src/dashboard/types';
+
+   // ❌ Don't import from component-specific files
+   import { DashboardInfo } from 'src/dashboard/components/Header/types';
+   ```
+
+3. **Mock complex types in tests**:
+   ```typescript
+   // For testing - provide minimal required fields
+   const mockInfo: Partial<DashboardInfo> as DashboardInfo = {
+     id: 123,
+     json_metadata: '{}',
+     // Only provide fields actually used in test
+   };
+   ```
+
+### Type Hierarchy Discovery Commands
+```bash
+# Find all definitions of a type
+grep -r "interface.*TypeName\|type.*TypeName" src/
+
+# Find import usage patterns
+grep -r "import.*TypeName" src/
+
+# Check what RootState uses
+grep -A 10 -B 10 "TypeName" src/*/types.ts
+```
+
+---
+
+## Agent Constraints (CRITICAL)
+
+1. **Use git mv** - Run `git mv file.js file.ts` to preserve git history, but NO `git commit`
+2. **NO global import changes** - Don't update imports across codebase
+3. **Type files OK** - Can modify existing type files to improve/align types
+4. **Single-File TypeScript Validation** (CRITICAL) - tsc has known issues with multi-file compilation:
+   - **Core Issue**: TypeScript's `tsc` has documented problems validating multiple files simultaneously in complex projects
+   - **Solution**: ALWAYS validate files one at a time using individual `tsc` calls
+   - **Command Pattern**: `cd superset-frontend && npx tscw --noEmit --allowJs --composite false --project tsconfig.json {single-file-path}`
+   - **Why**: Multi-file validation can produce false positives, miss real errors, and conflict during parallel agent execution
+5. **Downstream Impact Validation** (CRITICAL) - Your migration affects calling sites:
+   - **Find downstream files**: `find superset-frontend/src -name "*.tsx" -o -name "*.ts" | xargs grep -l "your-core-filename" 2>/dev/null || echo "No files found"`
+   - **Validate each downstream file individually**: `cd superset-frontend && npx tscw --noEmit --allowJs --composite false --project tsconfig.json {each-downstream-file}`
+   - **Fix type mismatches** you introduced in calling sites
+   - **NEVER ignore downstream errors** - they indicate your types don't match reality
+6. **Avoid Project-Wide Validation During Migration**:
+   - **NEVER use `npm run type`** during parallel agent execution - produces unreliable results
+   - **Single-file validation is authoritative** - trust individual file checks over project-wide scans
+6. **ESLint validation** - Run `npm run eslint -- --fix {file}` for each migrated file to auto-fix formatting/linting issues
+6. Zero `any` types - use proper TypeScript types
+7. Search existing types before creating new ones
+8. Follow patterns from this guide
+
+---
+
+## Success Report Format
+
+```
+SUCCESS: Atomic Migration of {core-filename}
+
+## Files Migrated (Atomic Unit)
+- Core: {core-filename} → {core-filename.ts/tsx}
+- Tests: {list-of-test-files} → {list-of-test-files.ts/tsx} OR "CREATED: {basename}.test.ts"
+- Mocks: {list-of-mock-files} → {list-of-mock-files.ts}
+- Type files modified: {list-of-type-files}
+
+## Types Created/Improved
+- {TypeName}: {location} ({scope}) - {rationale}
+- {ExistingType}: enhanced in {location} - {improvement-description}
+
+## Documentation Recommendations  
+- ADD_TO_DIRECTORY: {TypeName} - {reason}
+- NO_DOCUMENTATION: {TypeName} - {reason}
+
+## Quality Validation
+- **Single-File TypeScript Validation**: ✅ PASS - Core files individually validated
+  - Core file: `npx tscw --noEmit --allowJs --composite false --project tsconfig.json {core-file}`
+  - Test files: `npx tscw --noEmit --allowJs --composite false --project tsconfig.json {test-file}` (if exists)
+- **Downstream Impact Check**: ✅ PASS - Found {N} files importing this module, all validate individually
+  - Downstream files: {list-of-files-that-import-your-module}
+  - Individual validation: `npx tscw --noEmit --allowJs --composite false --project tsconfig.json {each-downstream-file}`
+- **ESLint validation**: ✅ PASS (using `npm run eslint -- --fix {files}` to auto-fix formatting)
+- **Zero any types**: ✅ PASS
+- **Local imports resolved**: ✅ PASS  
+- **Functionality preserved**: ✅ PASS
+- **Tests pass** (if test file): ✅ PASS
+- **Follow-up action required**: {YES/NO}
+
+## Validation Strategy Notes
+- **Single-file approach used**: Avoided multi-file tsc validation due to known TypeScript compilation issues
+- **Project-wide validation skipped**: `npm run type` not used during parallel migration to prevent false positives
+
+## Migration Learnings
+- Type conflicts encountered: {describe any multiple type definitions}
+- Mock patterns used: {describe test mocking approaches}
+- Import hierarchy decisions: {note authoritative type sources used}
+- PropTypes strategy: {AUTO_GENERATED via babel plugin | MANUAL_DUPLICATION_REMOVED | N/A}
+
+## Improvement Suggestions for Documentation
+- AGENT.md enhancement: {suggest additions to migration guide}
+- Common pattern identified: {note reusable patterns for future migrations}
+```
+
+---
+
+## Dependency Block Report Format
+
+```
+DEPENDENCY_BLOCK: Cannot migrate {filename}
+
+## Blocking Dependencies
+- {path}: {type} - {usage} - {priority}
+
+## Impact Analysis
+- Estimated types: {number}
+- Expected locations: {list}
+- Cross-domain: {YES/NO}
+
+## Recommended Order
+{ordered-list}
+```
+
+---
+
+## 📚 Quick Reference
+
+**Type Utilities:**
+- `Record<K, V>` - Object with specific key/value types
+- `Partial<T>` - All properties optional
+- `Pick<T, K>` - Subset of properties
+- `Omit<T, K>` - Exclude specific properties
+- `NonNullable<T>` - Exclude null/undefined
+
+**Event Types:**
+- `MouseEvent<HTMLButtonElement>`
+- `ChangeEvent<HTMLInputElement>`
+- `FormEvent<HTMLFormElement>`
+
+**React Types:**
+- `FC<Props>` - Functional component
+- `ReactNode` - Any renderable content
+- `CSSProperties` - Style objects
+
+---
+
+**Remember:** Every type should add value and clarity. The goal is meaningful type safety that catches bugs and improves developer experience.

.claude/projects/js-to-ts/COORDINATOR.md

@@ -0,0 +1,199 @@
+# JS-to-TS Coordinator Workflow
+
+**Role:** Strategic migration coordination - select leaf-node files, trigger agents, review results, handle integration, manage dependencies.
+
+---
+
+## 1. Core File Selection Strategy
+
+**Target ONLY Core Files**: Coordinators identify core files (production code), agents handle related tests/mocks atomically.
+
+**File Analysis Commands**:
+```bash
+# Find CORE files with no JS/JSX dependencies (exclude tests/mocks) - SIZE PRIORITIZED
+find superset-frontend/src -name "*.js" -o -name "*.jsx" | grep -v "test\|spec\|mock" | xargs wc -l | sort -n | head -20
+
+# Alternative: Get file sizes in lines with paths
+find superset-frontend/src -name "*.js" -o -name "*.jsx" | grep -v "test\|spec\|mock" | while read file; do
+  lines=$(wc -l < "$file")
+  echo "$lines $file"
+done | sort -n | head -20
+
+# Check dependencies for core files only (start with smallest)
+for file in <core-files-sorted-by-size>; do
+  echo "=== $file ($(wc -l < "$file") lines) ==="
+  grep -E "from '\.\./.*\.jsx?'|from '\./.*\.jsx?'|from 'src/.*\.jsx?'" "$file" || echo "✅ LEAF CANDIDATE"
+done
+
+# Identify heavily imported files (migrate last)  
+grep -r "from.*utils/common" superset-frontend/src/ | wc -l
+
+# Quick leaf analysis with size priority
+find superset-frontend/src -name "*.js" -o -name "*.jsx" | grep -v "test\|spec\|mock" | head -30 | while read file; do
+  deps=$(grep -E "from '\.\./.*\.jsx?'|from '\./.*\.jsx?'|from 'src/.*\.jsx?'" "$file" | wc -l)
+  lines=$(wc -l < "$file")
+  if [ "$deps" -eq 0 ]; then
+    echo "✅ LEAF: $lines lines - $file"
+  fi
+done | sort -n
+```
+
+**Priority Order** (Smallest files first for easier wins):
+1. **Small leaf files** (<50 lines) - No JS/JSX imports, quick TypeScript conversion
+2. **Medium leaf files** (50-200 lines) - Self-contained utilities and helpers  
+3. **Small dependency files** (<100 lines) - Import only already-migrated files
+4. **Larger components** (200+ lines) - Complex but well-contained functionality
+5. **Core foundational files** (utils/common.js, controls.jsx) - migrate last regardless of size
+
+**Size-First Benefits**:
+- Faster completion builds momentum
+- Earlier validation of migration patterns
+- Easier rollback if issues arise
+- Better success rate for agent learning
+
+**Migration Unit**: Each agent call migrates:
+- 1 core file (primary target)
+- All related `*.test.js/jsx` files
+- All related `*.mock.js` files  
+- All related `__mocks__/` files
+
+---
+
+## 2. Task Creation & Agent Control
+
+### Task Triggering
+When triggering the `/js-to-ts` command:
+- **Task Title**: Use the core filename as the task title (e.g., "DebouncedMessageQueue.js migration", "hostNamesConfig.js migration")
+- **Task Description**: Include the full relative path to help agent locate the file
+- **Reference**: Point agent to [AGENT.md](./AGENT.md) for technical instructions
+
+### Post-Processing Workflow
+After each agent completes:
+
+1. **Review Agent Report**: Always read and analyze the complete agent report
+2. **Share Summary**: Provide user with key highlights from agent's work:
+   - Files migrated (core + tests/mocks)
+   - Types created or improved
+   - Any validation issues or coordinator actions needed
+3. **Quality Assessment**: Evaluate agent's TypeScript implementation against criteria:
+   - ✅ **Type Usage**: Proper types used, no `any` types
+   - ✅ **Type Filing**: Types placed in correct hierarchy (component → feature → domain → global)
+   - ✅ **Side Effects**: No unintended changes to other files
+   - ✅ **Import Alignment**: Proper .ts/.tsx import extensions
+4. **Integration Decision**:
+   - **COMMIT**: If agent work is complete and high quality
+   - **FIX & COMMIT**: If minor issues need coordinator fixes
+   - **ROLLBACK**: If major issues require complete rework
+5. **Next Action**: Ask user preference - commit this work or trigger next migration
+
+---
+
+## 3. Integration Decision Framework
+
+**Automatic Integration** ✅:
+- `npm run type` passes without errors
+- Agent created clean TypeScript with proper types
+- Types appropriately filed in hierarchy
+
+**Coordinator Integration** (Fix Side-Effects) 🔧:
+- `npm run type` fails BUT agent's work is high quality
+- Good type usage, proper patterns, well-organized
+- Side-effects are manageable TypeScript compilation errors
+- **Coordinator Action**: Integrate the change, then fix global compilation issues
+
+**Rollback Only** ❌:
+- Agent introduced `any` types or poor type choices
+- Types poorly organized or conflicting with existing patterns
+- Fundamental approach issues requiring complete rework
+
+**Integration Process**:
+1. **Review**: Agent already used `git mv` to preserve history
+2. **Fix Side-Effects**: Update dependent files with proper import extensions
+3. **Resolve Types**: Fix any cascading type issues across codebase
+4. **Validate**: Ensure `npm run type` passes after fixes
+
+---
+
+## 4. Common Integration Patterns
+
+**Common Side-Effects (Expect These)**:
+- **Type import conflicts**: Multiple definitions of same type name
+- **Mock object typing**: Tests need complete type satisfaction
+- **Stub method references**: Use stub vars instead of original methods
+
+**Coordinator Fixes (Standard Process)**:
+1. **Import Resolution**:
+   ```bash
+   # Find authoritative type source
+   grep -r "TypeName" src/*/types.ts
+   # Import from domain types (src/dashboard/types.ts) not component types
+   ```
+
+2. **Test Mock Completion**:
+   ```typescript
+   // Use Partial<T> as T pattern for minimal mocking
+   const mockDashboard: Partial<DashboardInfo> as DashboardInfo = {
+     id: 123,
+     json_metadata: '{}',
+   };
+   ```
+
+3. **Stub Reference Fixes**:
+   ```typescript
+   // ✅ Use stub variable
+   expect(postStub.callCount).toBe(1);
+   // ❌ Don't use original method
+   expect(SupersetClient.post.callCount).toBe(1);
+   ```
+
+4. **Validation Commands**:
+   ```bash
+   npm run type          # TypeScript compilation
+   npm test -- filename  # Test functionality
+   git status           # Should show rename, not add/delete
+   ```
+
+---
+
+## 5. File Categories for Planning
+
+### Leaf Files (Start Here)
+**Self-contained files with minimal JS/JSX dependencies**:
+- Test files (80 files) - Usually only import the file being tested
+- Utility files without internal dependencies
+- Components importing only external libraries
+
+### Heavily Imported Files (Migrate Last)
+**Core files that many others depend on**:
+- `utils/common.js` - Core utility functions
+- `utils/reducerUtils.js` - Redux helpers  
+- `@superset-ui/core` equivalent files
+- Major state management files (`explore/store.js`, `dashboard/actions/`)
+
+### Complex Components (Middle Priority)  
+**Large files requiring careful type analysis**:
+- `components/Datasource/DatasourceEditor.jsx` (1,809 lines)
+- `explore/components/controls/AnnotationLayerControl/AnnotationLayer.jsx` (1,031 lines)
+- `explore/components/ExploreViewContainer/index.jsx` (911 lines)
+
+---
+
+## 6. Success Metrics & Continuous Improvement
+
+**Per-File Gates**:
+- ✅ `npm run type` passes after each migration
+- ✅ Zero `any` types introduced
+- ✅ All imports properly typed
+- ✅ Types filed in correct hierarchy
+
+**Linear Scheduling**:
+When agents report `DEPENDENCY_BLOCK`:
+- Queue dependencies in linear order
+- Process one file at a time to avoid conflicts
+- Handle cascading type changes between files
+
+**After Each Migration**:
+1. **Update guides** with new patterns discovered
+2. **Document coordinator fixes** that become common
+3. **Enhance agent instructions** based on recurring issues
+4. **Track success metrics** - automatic vs coordinator integration rates

.claude/projects/js-to-ts/PROJECT.md

@@ -0,0 +1,76 @@
+# JavaScript to TypeScript Migration Project
+
+Progressive migration of 219 JS/JSX files to TypeScript in Apache Superset frontend.
+
+## 📁 Project Documentation
+
+- **[AGENT.md](./AGENT.md)** - Complete technical migration guide for agents (includes type reference, patterns, validation)
+- **[COORDINATOR.md](./COORDINATOR.md)** - Strategic workflow for coordinators (file selection, task management, integration)
+
+## 🎯 Quick Start
+
+**For Agents:** Read [AGENT.md](./AGENT.md) for complete migration instructions
+**For Coordinators:** Read [COORDINATOR.md](./COORDINATOR.md) for workflow and [AGENT.md](./AGENT.md) for supervision
+
+**Command:** `/js-to-ts <filename>` - See [../../commands/js-to-ts.md](../../commands/js-to-ts.md)
+
+## 📊 Migration Progress
+
+**Scope**: 219 files total (112 JS + 107 JSX)
+- Production files: 139 (63%)  
+- Test files: 80 (37%)
+
+**Strategy**: Leaf-first migration with dependency-aware coordination
+
+### Completed Migrations ✅
+
+1. **roundDecimal** - `plugins/legacy-plugin-chart-map-box/src/utils/roundDecimal.js`
+   - Migrated core + test files
+   - Added proper TypeScript function signature with optional precision parameter
+   - All tests pass
+
+2. **timeGrainSqlaAnimationOverrides** - `src/explore/controlPanels/timeGrainSqlaAnimationOverrides.js`
+   - Migrated to TypeScript with ControlPanelState and Dataset types
+   - Added TimeGrainOverrideState interface for return type
+   - Used type guards for safe property access
+
+3. **DebouncedMessageQueue** - `src/utils/DebouncedMessageQueue.js`
+   - Migrated to TypeScript with proper generics
+   - Created DebouncedMessageQueueOptions interface
+   - **CREATED test file** with 4 comprehensive test cases
+   - Excellent class property typing with private/readonly modifiers
+
+**Files Migrated**: 3/219 (1.4%)
+**Tests Created**: 2 (roundDecimal had existing, DebouncedMessageQueue created)
+
+### Next Candidates (Leaf Nodes) 🎯
+
+**Identified leaf files with no JS/JSX dependencies:**
+- `src/utils/hostNamesConfig.js` - Domain configuration utility
+- `src/explore/controlPanels/Separator.js` - Control panel configuration  
+- `src/middleware/loggerMiddleware.js` - Logging middleware
+
+**Migration Quality**: All completed migrations have:
+- ✅ Zero `any` types
+- ✅ Proper TypeScript compilation
+- ✅ ESLint validation passed
+- ✅ Test coverage (created where missing)
+
+---
+
+## 📈 Success Metrics
+
+**Per-File Gates**:
+- ✅ `npm run type` passes after each migration
+- ✅ Zero `any` types introduced  
+- ✅ All imports properly typed
+- ✅ Types filed in correct hierarchy
+
+**Overall Progress**:
+- **Automatic Integration Rate**: 100% (3/3 migrations required no coordinator fixes)
+- **Test Coverage**: Improved (1 new test file created)
+- **Type Safety**: Enhanced with proper interfaces and generics
+
+---
+
+*This is a claudette-managed progressive refactor. All documentation and coordination resources are organized under `.claude/projects/js-to-ts/`*

.devcontainer/Dockerfile

@@ -1,5 +1,5 @@
 # Keep this in sync with the base image in the main Dockerfile (ARG PY_VER)
-FROM python:3.11.13-bookworm AS base
+FROM python:3.11.13-trixie AS base
 
 # Install system dependencies that Superset needs
 # This layer will be cached across Codespace sessions

.github/CODEOWNERS

@@ -2,7 +2,7 @@
 
 # https://github.com/apache/superset/issues/13351
 
-/superset/migrations/ @mistercrunch @michael-s-molina @betodealmeida @eschutho
+/superset/migrations/ @mistercrunch @michael-s-molina @betodealmeida @eschutho @sadpandajoe
 
 # Notify some committers of changes in the components
 
@@ -20,7 +20,7 @@
 
 # Notify PMC members of changes to GitHub Actions
 
-/.github/ @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @craig-rueda @kgabryje @dpgaspar
+/.github/ @villebro @geido @eschutho @rusackas @betodealmeida @nytai @mistercrunch @craig-rueda @kgabryje @dpgaspar @sadpandajoe
 
 # Notify PMC members of changes to required GitHub Actions
 
@@ -30,3 +30,13 @@
 
 **/*.geojson @villebro @rusackas
 /superset-frontend/plugins/legacy-plugin-chart-country-map/ @villebro @rusackas
+
+# Notify PMC members of changes to extension-related files
+
+/superset-core/ @michael-s-molina @villebro @geido @eschutho @rusackas @kgabryje
+/superset-extensions-cli/ @michael-s-molina @villebro @geido @eschutho @rusackas @kgabryje
+/superset/core/ @michael-s-molina @villebro @geido @eschutho @rusackas @kgabryje
+/superset/extensions/ @michael-s-molina @villebro @geido @eschutho @rusackas @kgabryje
+/superset-frontend/src/packages/superset-core/ @michael-s-molina @villebro @geido @eschutho @rusackas @kgabryje
+/superset-frontend/src/core/ @michael-s-molina @villebro @geido @eschutho @rusackas @kgabryje
+/superset-frontend/src/extensions/ @michael-s-molina @villebro @geido @eschutho @rusackas @kgabryje

.github/actions/change-detector/action.yml

@@ -1,24 +1,27 @@
-name: 'Change Detector'
-description: 'Detects file changes for pull request and push events'
+name: Change Detector
+description: Detects file changes for pull request and push events
 inputs:
   token:
-    description: 'GitHub token for authentication'
+    description: GitHub token for authentication
     required: true
 outputs:
   python:
-    description: 'Whether Python-related files were changed'
+    description: Whether Python-related files were changed
     value: ${{ steps.change-detector.outputs.python }}
   frontend:
-    description: 'Whether frontend-related files were changed'
+    description: Whether frontend-related files were changed
     value: ${{ steps.change-detector.outputs.frontend }}
   docker:
-    description: 'Whether docker-related files were changed'
+    description: Whether docker-related files were changed
     value: ${{ steps.change-detector.outputs.docker }}
   docs:
-    description: 'Whether docs-related files were changed'
+    description: Whether docs-related files were changed
     value: ${{ steps.change-detector.outputs.docs }}
+  superset-extensions-cli:
+    description: Whether superset-extensions-cli package-related files were changed
+    value: ${{ steps.change-detector.outputs.superset-extensions-cli }}
 runs:
-  using: 'composite'
+  using: composite
   steps:
     - name: Detect file changes
       id: change-detector

.github/copilot-instructions.md

@@ -1 +1 @@
-../LLMS.md
+../AGENTS.md

.github/dependabot.yml

@@ -5,7 +5,7 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
 
   - package-ecosystem: "npm"
     ignore:
@@ -18,7 +18,7 @@ updates:
       - dependency-name: "jest-environment-jsdom"
     directory: "/superset-frontend/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -40,21 +40,21 @@ updates:
   - package-ecosystem: "npm"
     directory: ".github/actions"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     open-pull-requests-limit: 10
     versioning-strategy: increase
 
   - package-ecosystem: "npm"
     directory: "/docs/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     open-pull-requests-limit: 10
     versioning-strategy: increase
 
   - package-ecosystem: "npm"
     directory: "/superset-websocket/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -63,7 +63,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-websocket/utils/client-ws-app/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -75,7 +75,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-calendar/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -85,7 +85,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-histogram/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -95,7 +95,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-partition/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -105,7 +105,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-world-map/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -115,7 +115,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/plugin-chart-pivot-table/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -125,7 +125,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-chord/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -135,7 +135,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-horizon/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -145,7 +145,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-rose/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -155,7 +155,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-preset-chart-deckgl/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -165,7 +165,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/plugin-chart-table/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -175,7 +175,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-country-map/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -185,7 +185,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-map-box/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -195,7 +195,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-sankey/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -205,7 +205,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-preset-chart-nvd3/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -215,7 +215,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/plugin-chart-word-cloud/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -225,7 +225,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-event-flow/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -235,7 +235,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-paired-t-test/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -245,7 +245,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-sankey-loop/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -255,7 +255,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/plugin-chart-echarts/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -265,7 +265,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/preset-chart-xy/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -275,7 +275,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-heatmap/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -285,7 +285,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-parallel-coordinates/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -295,7 +295,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/legacy-plugin-chart-sunburst/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -305,7 +305,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/plugins/plugin-chart-handlebars/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -315,7 +315,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/packages/generator-superset/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -325,7 +325,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/packages/superset-ui-chart-controls/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -339,7 +339,7 @@ updates:
       - dependency-name: "react-markdown"
       - dependency-name: "remark-gfm"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -349,7 +349,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/packages/superset-ui-demo/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot
@@ -359,7 +359,7 @@ updates:
   - package-ecosystem: "npm"
     directory: "/superset-frontend/packages/superset-ui-switchboard/"
     schedule:
-      interval: "monthly"
+      interval: "daily"
     labels:
       - npm
       - dependabot

.github/workflows/bashlib.sh

@@ -182,6 +182,76 @@ cypress-run-all() {
   kill $flaskProcessId
 }
 
+playwright-install() {
+  cd "$GITHUB_WORKSPACE/superset-frontend"
+
+  say "::group::Install Playwright browsers"
+  npx playwright install --with-deps chromium
+  # Create output directories for test results and debugging
+  mkdir -p playwright-results
+  mkdir -p test-results
+  say "::endgroup::"
+}
+
+playwright-run() {
+  local APP_ROOT=$1
+
+  # Start Flask from the project root (same as Cypress)
+  cd "$GITHUB_WORKSPACE"
+  local flasklog="${HOME}/flask-playwright.log"
+  local port=8081
+  PLAYWRIGHT_BASE_URL="http://localhost:${port}"
+  if [ -n "$APP_ROOT" ]; then
+    export SUPERSET_APP_ROOT=$APP_ROOT
+    PLAYWRIGHT_BASE_URL=${PLAYWRIGHT_BASE_URL}${APP_ROOT}/
+  fi
+  export PLAYWRIGHT_BASE_URL
+
+  nohup flask run --no-debugger -p $port >"$flasklog" 2>&1 </dev/null &
+  local flaskProcessId=$!
+
+  # Ensure cleanup on exit
+  trap "kill $flaskProcessId 2>/dev/null || true" EXIT
+
+  # Wait for server to be ready with health check
+  local timeout=60
+  say "Waiting for Flask server to start on port $port..."
+  while [ $timeout -gt 0 ]; do
+    if curl -f ${PLAYWRIGHT_BASE_URL}/health >/dev/null 2>&1; then
+      say "Flask server is ready"
+      break
+    fi
+    sleep 1
+    timeout=$((timeout - 1))
+  done
+
+  if [ $timeout -eq 0 ]; then
+    echo "::error::Flask server failed to start within 60 seconds"
+    echo "::group::Flask startup log"
+    cat "$flasklog"
+    echo "::endgroup::"
+    return 1
+  fi
+
+  # Change to frontend directory for Playwright execution
+  cd "$GITHUB_WORKSPACE/superset-frontend"
+
+  say "::group::Run Playwright tests"
+  echo "Running Playwright with baseURL: ${PLAYWRIGHT_BASE_URL}"
+  npx playwright test auth/login --reporter=github --output=playwright-results
+  local status=$?
+  say "::endgroup::"
+
+  # After job is done, print out Flask log for debugging
+  echo "::group::Flask log for Playwright run"
+  cat "$flasklog"
+  echo "::endgroup::"
+  # make sure the program exits
+  kill $flaskProcessId
+
+  return $status
+}
+
 eyes-storybook-dependencies() {
   say "::group::install eyes-storyook dependencies"
   sudo apt-get update -y && sudo apt-get -y install gconf-service ca-certificates libxshmfence-dev fonts-liberation libappindicator3-1 libasound2 libatk-bridge2.0-0 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libgconf-2-4 libglib2.0-0 libgdk-pixbuf2.0-0 libgtk-3-0 libnspr4 libnss3 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 lsb-release xdg-utils libappindicator1

.github/workflows/bump-python-package.yml

@@ -32,7 +32,7 @@ jobs:
     steps:
 
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: true
           ref: master
@@ -41,7 +41,7 @@ jobs:
         uses: ./.github/actions/setup-supersetbot/
 
       - name: Set up Python ${{ inputs.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.10"
 

.github/workflows/cancel_duplicates.yml

@@ -31,7 +31,7 @@ jobs:
 
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
         if: steps.check_queued.outputs.count >= 20
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Cancel duplicate workflow runs
         if: steps.check_queued.outputs.count >= 20

.github/workflows/check-python-deps.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/check_db_migration_confict.yml

@@ -25,9 +25,9 @@ jobs:
       pull-requests: write
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Check and notify
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           github-token: ${{ github.token }}
           script: |

.github/workflows/claude.yml

@@ -44,7 +44,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Comment access denied
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const message = `👋 Hi @${{ github.event.comment.user.login || github.event.review.user.login || github.event.issue.user.login }}!
@@ -71,7 +71,7 @@ jobs:
       id-token: write
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 1
 

.github/workflows/codeql-analysis.yml

@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Check for file changes
         id: check
@@ -41,7 +41,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@v4
         with:
           languages: ${{ matrix.language }}
           # If you wish to specify custom queries, you can do so here or in a config file.
@@ -53,6 +53,6 @@ jobs:
 
       - name: Perform CodeQL Analysis
         if: steps.check.outputs.python || steps.check.outputs.frontend
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@v4
         with:
           category: "/language:${{matrix.language}}"

.github/workflows/dependency-review.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout Repository"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: "Dependency Review"
         uses: actions/dependency-review-action@v4
         continue-on-error: true
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: "Checkout Repository"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Python
         uses: ./.github/actions/setup-backend/

.github/workflows/docker.yml

@@ -22,7 +22,7 @@ jobs:
     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"]'; fi)
+          MATRIX_CONFIG=$(if [ "${{ github.event_name }}" == "pull_request" ]; then echo '["dev", "lean"]'; else echo '["dev", "lean", "py310", "websocket", "dockerize", "py311", "py312"]'; fi)
           echo "matrix_config=${MATRIX_CONFIG}" >> $GITHUB_OUTPUT
           echo $GITHUB_OUTPUT
 
@@ -42,7 +42,7 @@ jobs:
     steps:
 
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
@@ -102,7 +102,7 @@ jobs:
           docker history $IMAGE_TAG
 
       - name: docker-compose sanity check
-        if: (steps.check.outputs.python || steps.check.outputs.frontend || steps.check.outputs.docker) && (matrix.build_preset == 'dev' || matrix.build_preset == 'lean')
+        if: (steps.check.outputs.python || steps.check.outputs.frontend || steps.check.outputs.docker) && matrix.build_preset == 'dev'
         shell: bash
         run: |
           export SUPERSET_BUILD_TARGET=${{ matrix.build_preset }}
@@ -117,7 +117,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
       - name: Check for file changes

.github/workflows/embedded-sdk-release.yml

@@ -28,8 +28,8 @@ jobs:
       run:
         working-directory: superset-embedded-sdk
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-node@v5
         with:
           node-version-file: './superset-embedded-sdk/.nvmrc'
           registry-url: 'https://registry.npmjs.org'

.github/workflows/embedded-sdk-test.yml

@@ -18,8 +18,8 @@ jobs:
       run:
         working-directory: superset-embedded-sdk
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v5
+      - uses: actions/setup-node@v5
         with:
           node-version-file: './superset-embedded-sdk/.nvmrc'
           registry-url: 'https://registry.npmjs.org'

.github/workflows/ephemeral-env-pr-close.yml

@@ -1,4 +1,10 @@
-name: Cleanup ephemeral envs (PR close)
+name: Cleanup ephemeral envs (PR close) [DEPRECATED]
+
+# ⚠️  DEPRECATION NOTICE ⚠️
+# This workflow is deprecated and will be removed in a future version.
+# The new Superset Showtime workflow handles cleanup automatically.
+# See .github/workflows/showtime.yml and showtime-cleanup.yml for replacements.
+# Migration guide: https://github.com/mistercrunch/superset-showtime
 
 on:
   pull_request_target:
@@ -27,7 +33,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v4
+        uses: aws-actions/configure-aws-credentials@v5
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -63,7 +69,7 @@ jobs:
 
       - name: Comment (success)
         if: steps.describe-services.outputs.active == 'true'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           github-token: ${{github.token}}
           script: |
@@ -71,5 +77,5 @@ jobs:
               issue_number: ${{ github.event.number }},
               owner: context.repo.owner,
               repo: context.repo.repo,
-              body: 'Ephemeral environment shutdown and build artifacts deleted.'
+              body: '⚠️ **DEPRECATED WORKFLOW** - Ephemeral environment shutdown and build artifacts deleted. Please migrate to the new Superset Showtime system for future PRs.'
             })

.github/workflows/ephemeral-env.yml

@@ -1,4 +1,12 @@
-name: Ephemeral env workflow
+name: Ephemeral env workflow [DEPRECATED]
+
+# ⚠️  DEPRECATION NOTICE ⚠️
+# This workflow is deprecated and will be removed in a future version.
+# Please use the new Superset Showtime workflow instead:
+# - Use label "🎪 trigger-start" instead of "testenv-up"
+# - Showtime provides better reliability and easier management
+# - See .github/workflows/showtime.yml for the replacement
+# - Migration guide: https://github.com/mistercrunch/superset-showtime
 
 # Example manual trigger:
 # gh workflow run ephemeral-env.yml --ref fix_ephemerals --field label_name="testenv-up" --field issue_number=666
@@ -55,7 +63,7 @@ jobs:
       - name: Get event SHA
         id: get-sha
         if: steps.eval-label.outputs.result == 'up'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
@@ -86,7 +94,7 @@ jobs:
             core.setOutput("sha", prSha);
 
       - name: Looking for feature flags in PR description
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         id: eval-feature-flags
         if: steps.eval-label.outputs.result == 'up'
         with:
@@ -108,7 +116,7 @@ jobs:
             return results;
 
       - name: Reply with confirmation comment
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         if: steps.eval-label.outputs.result == 'up'
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
@@ -126,8 +134,11 @@ jobs:
               throw new Error("Issue number is not available.");
             }
 
-            const body = `@${user} Processing your ephemeral environment request [here](${workflowUrl}).` +
-              ` Action: **${action}**.` +
+            const body = `⚠️ **DEPRECATED WORKFLOW** ⚠️\n\n@${user} This workflow is deprecated! Please use the new **Superset Showtime** system instead:\n\n` +
+              `- Replace "testenv-up" label with "🎪 trigger-start"\n` +
+              `- Better reliability and easier management\n` +
+              `- See https://github.com/mistercrunch/superset-showtime for details\n\n` +
+              `Processing your ephemeral environment request [here](${workflowUrl}). Action: **${action}**.` +
               ` More information on [how to use or configure ephemeral environments]` +
               `(https://superset.apache.org/docs/contributing/howtos/#github-ephemeral-environments)`;
 
@@ -149,7 +160,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ needs.ephemeral-env-label.outputs.sha }} : ${{steps.get-sha.outputs.sha}} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ needs.ephemeral-env-label.outputs.sha }}
           persist-credentials: false
@@ -178,7 +189,7 @@ jobs:
             --extra-flags "--build-arg INCLUDE_CHROMIUM=false"
 
       - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v4
+        uses: aws-actions/configure-aws-credentials@v5
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -209,12 +220,12 @@ jobs:
       pull-requests: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           persist-credentials: false
 
       - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v4
+        uses: aws-actions/configure-aws-credentials@v5
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -237,7 +248,7 @@ jobs:
 
       - name: Fail on missing container image
         if: steps.check-image.outcome == 'failure'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           github-token: ${{ github.token }}
           script: |
@@ -307,7 +318,7 @@ jobs:
           echo "ip=$(aws ec2 describe-network-interfaces --network-interface-ids ${{ steps.get-eni.outputs.eni }} | jq -r '.NetworkInterfaces | first | .Association.PublicIp')" >> $GITHUB_OUTPUT
       - name: Comment (success)
         if: ${{ success() }}
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           github-token: ${{github.token}}
           script: |
@@ -320,7 +331,7 @@ jobs:
             });
       - name: Comment (failure)
         if: ${{ failure() }}
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           github-token: ${{github.token}}
           script: |

.github/workflows/generate-FOSSA-report.yml

@@ -27,12 +27,12 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
       - name: Setup Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: "temurin"
           java-version: "11"

.github/workflows/github-action-validator.yml

@@ -14,10 +14,10 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '20'
 

.github/workflows/issue_creation.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
 
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 

.github/workflows/labeler.yml

@@ -9,7 +9,7 @@ jobs:
       pull-requests: write
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/labeler@v5
+    - uses: actions/labeler@v6
       with:
         sync-labels: true
 

.github/workflows/latest-release-tag.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         persist-credentials: false
         submodules: recursive

.github/workflows/license-check.yml

@@ -15,12 +15,12 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
       - name: Setup Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
           java-version: '11'

.github/workflows/no-hold-label.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Check for 'hold' label
-      uses: actions/github-script@v7
+      uses: actions/github-script@v8
       with:
         github-token: ${{secrets.GITHUB_TOKEN}}
         script: |

.github/workflows/pr-lint.yml

@@ -16,7 +16,7 @@ jobs:
       pull-requests: write
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/pre-commit.yml

@@ -21,7 +21,7 @@ jobs:
         python-version: ["current", "previous", "next"]
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
@@ -39,7 +39,7 @@ jobs:
           echo "HOMEBREW_REPOSITORY=$HOMEBREW_REPOSITORY" >>"${GITHUB_ENV}"
           brew install norwoodj/tap/helm-docs
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '20'
 

.github/workflows/prefer-typescript.yml

@@ -27,7 +27,7 @@ jobs:
       pull-requests: write
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/release.yml

@@ -26,7 +26,7 @@ jobs:
     name: Bump version and publish package(s)
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           # pulls all commits (needed for lerna / semantic release to correctly version)
           fetch-depth: 0
@@ -42,7 +42,7 @@ jobs:
 
       - name: Install Node.js
         if: env.HAS_TAGS
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file: './superset-frontend/.nvmrc'
 

.github/workflows/showtime-cleanup.yml

@@ -0,0 +1,50 @@
+name: 🎪 Showtime Cleanup
+
+# Scheduled cleanup of expired environments
+on:
+  schedule:
+    - cron: '0 */6 * * *'  # Every 6 hours
+
+  # Manual trigger for testing
+  workflow_dispatch:
+    inputs:
+      max_age_hours:
+        description: 'Maximum age in hours before cleanup'
+        required: false
+        default: '48'
+        type: string
+
+# Common environment variables
+env:
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+  AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+  AWS_REGION: ${{ vars.AWS_REGION || 'us-west-2' }}
+  GITHUB_ORG: ${{ github.repository_owner }}
+  GITHUB_REPO: ${{ github.event.repository.name }}
+
+jobs:
+  cleanup-expired:
+    name: Clean up expired showtime environments
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+      - name: Install Superset Showtime
+        run: pip install superset-showtime
+
+      - name: Cleanup expired environments
+        run: |
+          MAX_AGE="${{ github.event.inputs.max_age_hours || '48' }}"
+
+          # Validate max_age is numeric
+          if [[ ! "$MAX_AGE" =~ ^[0-9]+$ ]]; then
+            echo "❌ Invalid max_age_hours format: $MAX_AGE (must be numeric)"
+            exit 1
+          fi
+
+          echo "Cleaning up environments older than ${MAX_AGE}h"
+          python -m showtime cleanup --older-than "${MAX_AGE}h"

.github/workflows/showtime-trigger.yml

@@ -0,0 +1,179 @@
+name: 🎪 Superset Showtime
+
+# Ultra-simple: just sync on any PR state change
+on:
+  pull_request_target:
+    types: [labeled, unlabeled, synchronize, closed]
+
+  # Manual testing
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'PR number to sync'
+        required: true
+        type: number
+      sha:
+        description: 'Specific SHA to deploy (optional, defaults to latest)'
+        required: false
+        type: string
+
+# Common environment variables for all jobs (non-sensitive only)
+env:
+  AWS_REGION: us-west-2
+  GITHUB_ORG: ${{ github.repository_owner }}
+  GITHUB_REPO: ${{ github.event.repository.name }}
+  GITHUB_ACTOR: ${{ github.actor }}
+
+jobs:
+  sync:
+    name: 🎪 Sync PR to desired state
+    runs-on: ubuntu-latest
+    timeout-minutes: 90
+
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+      - name: Security Check - Authorize Maintainers Only
+        id: auth
+        uses: actions/github-script@v8
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          script: |
+            const actor = context.actor;
+            console.log(`🔍 Checking authorization for ${actor}`);
+
+            // Early exit for workflow_dispatch - assume authorized since it's manually triggered
+            if (context.eventName === 'workflow_dispatch') {
+              console.log(`✅ Workflow dispatch event - assuming authorized for ${actor}`);
+              core.setOutput('authorized', 'true');
+              return;
+            }
+
+            const { data: permission } = await github.rest.repos.getCollaboratorPermissionLevel({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              username: actor
+            });
+
+            console.log(`📊 Permission level for ${actor}: ${permission.permission}`);
+            const authorized = ['write', 'admin'].includes(permission.permission);
+
+            // If this is a synchronize event from unauthorized user, check if Showtime is active and set blocked label
+            if (!authorized && context.eventName === 'pull_request_target' && context.payload.action === 'synchronize') {
+              console.log(`🔒 Synchronize event detected - checking if Showtime is active`);
+
+              // Check if PR has any circus tent labels (Showtime is in use)
+              const { data: issue } = await github.rest.issues.get({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.payload.pull_request.number
+              });
+
+              const hasCircusLabels = issue.labels.some(label => label.name.startsWith('🎪 '));
+
+              if (hasCircusLabels) {
+                console.log(`🎪 Circus labels found - setting blocked label to prevent auto-deployment`);
+
+                await github.rest.issues.addLabels({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: context.payload.pull_request.number,
+                  labels: ['🎪 🔒 showtime-blocked']
+                });
+
+                console.log(`✅ Blocked label set - Showtime will detect and skip operations`);
+              } else {
+                console.log(`ℹ️ No circus labels found - Showtime not in use, skipping block`);
+              }
+            }
+
+            if (!authorized) {
+              console.log(`🚨 Unauthorized user ${actor} - skipping all operations`);
+              core.setOutput('authorized', 'false');
+              return;
+            }
+
+            console.log(`✅ Authorized maintainer: ${actor}`);
+            core.setOutput('authorized', 'true');
+
+      - name: Install Superset Showtime
+        if: steps.auth.outputs.authorized == 'true'
+        run: |
+          echo "::notice::Maintainer ${{ github.actor }} triggered deploy for PR ${{ github.event.pull_request.number || github.event.inputs.pr_number }}"
+          pip install --upgrade superset-showtime
+          showtime version
+
+      - name: Check what actions are needed
+        if: steps.auth.outputs.authorized == 'true'
+        id: check
+        env:
+          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          # Bulletproof PR number extraction
+          if [[ -n "${{ github.event.pull_request.number }}" ]]; then
+            PR_NUM="${{ github.event.pull_request.number }}"
+          elif [[ -n "${{ github.event.inputs.pr_number }}" ]]; then
+            PR_NUM="${{ github.event.inputs.pr_number }}"
+          else
+            echo "❌ No PR number found in event or inputs"
+            exit 1
+          fi
+
+          echo "Using PR number: $PR_NUM"
+
+          # Run sync check-only with optional SHA override
+          if [[ -n "${{ github.event.inputs.sha }}" ]]; then
+            OUTPUT=$(python -m showtime sync $PR_NUM --check-only --sha "${{ github.event.inputs.sha }}")
+          else
+            OUTPUT=$(python -m showtime sync $PR_NUM --check-only)
+          fi
+          echo "$OUTPUT"
+
+          # Extract the outputs we need for conditional steps
+          BUILD=$(echo "$OUTPUT" | grep "build_needed=" | cut -d'=' -f2)
+          SYNC=$(echo "$OUTPUT" | grep "sync_needed=" | cut -d'=' -f2)
+          PR_NUM_OUT=$(echo "$OUTPUT" | grep "pr_number=" | cut -d'=' -f2)
+          TARGET_SHA=$(echo "$OUTPUT" | grep "target_sha=" | cut -d'=' -f2)
+
+          echo "build_needed=$BUILD" >> $GITHUB_OUTPUT
+          echo "sync_needed=$SYNC" >> $GITHUB_OUTPUT
+          echo "pr_number=$PR_NUM_OUT" >> $GITHUB_OUTPUT
+          echo "target_sha=$TARGET_SHA" >> $GITHUB_OUTPUT
+
+      - name: Checkout PR code (only if build needed)
+        if: steps.auth.outputs.authorized == 'true' && steps.check.outputs.build_needed == 'true'
+        uses: actions/checkout@v5
+        with:
+          ref: ${{ steps.check.outputs.target_sha }}
+          persist-credentials: false
+
+      - name: Setup Docker Environment (only if build needed)
+        if: steps.auth.outputs.authorized == 'true' && steps.check.outputs.build_needed == 'true'
+        uses: ./.github/actions/setup-docker
+        with:
+          dockerhub-user: ${{ secrets.DOCKERHUB_USER }}
+          dockerhub-token: ${{ secrets.DOCKERHUB_TOKEN }}
+          build: "true"
+          install-docker-compose: "false"
+
+      - name: Execute sync (handles everything)
+        if: steps.auth.outputs.authorized == 'true' && steps.check.outputs.sync_needed == 'true'
+        env:
+          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          DOCKERHUB_USER: ${{ secrets.DOCKERHUB_USER }}
+          DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
+        run: |
+          PR_NUM="${{ steps.check.outputs.pr_number }}"
+          TARGET_SHA="${{ steps.check.outputs.target_sha }}"
+          if [[ -n "$TARGET_SHA" ]]; then
+            python -m showtime sync $PR_NUM --sha "$TARGET_SHA"
+          else
+            python -m showtime sync $PR_NUM
+          fi

.github/workflows/superset-app-cli.yml

@@ -1,4 +1,4 @@
-name: Superset CLI tests
+name: Superset App CLI tests
 
 on:
   push:
@@ -37,7 +37,7 @@ jobs:
           - 16379:6379
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/superset-applitool-cypress.yml

@@ -51,7 +51,7 @@ jobs:
           - 16379:6379
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
@@ -63,7 +63,7 @@ jobs:
         with:
           run: testdata
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file: './superset-frontend/.nvmrc'
       - name: Install npm dependencies

.github/workflows/superset-applitools-storybook.yml

@@ -30,13 +30,13 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
           ref: master
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file: './superset-frontend/.nvmrc'
       - name: Install eyes-storybook dependencies

.github/workflows/superset-docs-deploy.yml

@@ -31,17 +31,17 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file: './docs/.nvmrc'
       - name: Setup Python
         uses: ./.github/actions/setup-backend/
-      - uses: actions/setup-java@v4
+      - uses: actions/setup-java@v5
         with:
           distribution: 'zulu'
           java-version: '21'

.github/workflows/superset-docs-verify.yml

@@ -18,15 +18,17 @@ jobs:
     name: Link Checking
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       # Do not bump this linkinator-action version without opening
       # an ASF Infra ticket to allow the new version first!
-      - uses: JustinBeckwith/linkinator-action@v1.11.0
+      - uses: JustinBeckwith/linkinator-action@3d5ba091319fa7b0ac14703761eebb7d100e6f6d  # v1.11.0
         continue-on-error: true # This will make the job advisory (non-blocking, no red X)
         with:
-          paths: "**/*.md, **/*.mdx, !superset-frontend/CHANGELOG.md"
+          paths: "**/*.md, **/*.mdx"
           linksToSkip: >-
-            ^https://github.com/apache/(superset|incubator-superset)/(pull|issue)/\d+,
+            ^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/,
@@ -41,12 +43,12 @@ jobs:
             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://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/
   build-deploy:
     name: Build & Deploy
@@ -56,12 +58,12 @@ jobs:
         working-directory: docs
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file: './docs/.nvmrc'
       - name: yarn install

.github/workflows/superset-e2e.yml

@@ -69,21 +69,21 @@ 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@v4
+        uses: actions/checkout@v5
         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@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           ref: ${{ github.event.inputs.ref }}
           submodules: recursive
       - name: Checkout using PR ID (workflow_dispatch)
         if: github.event_name == 'workflow_dispatch' && github.event.inputs.pr_id != ''
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           ref: refs/pull/${{ github.event.inputs.pr_id }}/merge
@@ -109,7 +109,7 @@ jobs:
           run: testdata
       - name: Setup Node.js
         if: steps.check.outputs.python || steps.check.outputs.frontend
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file: './superset-frontend/.nvmrc'
       - name: Install npm dependencies

.github/workflows/superset-extensions-cli.yml

@@ -0,0 +1,64 @@
+name: Superset Extensions CLI Package Tests
+
+on:
+  push:
+    branches:
+      - "master"
+      - "[0-9].[0-9]*"
+  pull_request:
+    types: [synchronize, opened, reopened, ready_for_review]
+
+# cancel previous workflow jobs for PRs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  test-superset-extensions-cli-package:
+    runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        python-version: ["previous", "current", "next"]
+    defaults:
+      run:
+        working-directory: superset-extensions-cli
+    steps:
+      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
+        uses: actions/checkout@v5
+        with:
+          persist-credentials: false
+          submodules: recursive
+
+      - name: Check for file changes
+        id: check
+        uses: ./.github/actions/change-detector/
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Setup Python
+        if: steps.check.outputs.superset-extensions-cli
+        uses: ./.github/actions/setup-backend/
+        with:
+          python-version: ${{ matrix.python-version }}
+          requirements-type: dev
+
+      - name: Run pytest with coverage
+        if: steps.check.outputs.superset-extensions-cli
+        run: |
+          pytest --cov=superset_extensions_cli --cov-report=xml --cov-report=term-missing --cov-report=html -v --tb=short
+
+      - name: Upload coverage reports to Codecov
+        if: steps.check.outputs.superset-extensions-cli
+        uses: codecov/codecov-action@v5
+        with:
+          file: ./coverage.xml
+          flags: superset-extensions-cli
+          name: superset-extensions-cli-coverage
+          fail_ci_if_error: false
+
+      - name: Upload HTML coverage report
+        if: steps.check.outputs.superset-extensions-cli
+        uses: actions/upload-artifact@v4
+        with:
+          name: superset-extensions-cli-coverage-html
+          path: htmlcov/

.github/workflows/superset-frontend.yml

@@ -23,7 +23,7 @@ jobs:
       should-run: ${{ steps.check.outputs.frontend }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           fetch-depth: 0
@@ -47,7 +47,7 @@ jobs:
           git show -s --format=raw HEAD
           docker buildx build \
             -t $TAG \
-            --cache-from=type=registry,ref=apache/superset-cache:3.10-slim-bookworm \
+            --cache-from=type=registry,ref=apache/superset-cache:3.10-slim-trixie \
             --target superset-node-ci \
             .
 
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Download Docker Image Artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: docker-image
 
@@ -101,7 +101,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Download Coverage Artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           pattern: coverage-artifacts-*
           path: coverage/
@@ -127,7 +127,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Download Docker Image Artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: docker-image
 
@@ -143,7 +143,7 @@ jobs:
       - name: tsc
         run: |
           docker run --rm $TAG bash -c \
-          "npm run type"
+          "npm run plugins:build && npm run type"
 
   validate-frontend:
     needs: frontend-build
@@ -151,7 +151,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Download Docker Image Artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: docker-image
 

.github/workflows/superset-helm-lint.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/superset-helm-release.yml

@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ inputs.ref || github.ref_name }}
           persist-credentials: true
@@ -101,7 +101,7 @@ jobs:
           CR_RELEASE_NAME_TEMPLATE: "superset-helm-chart-{{ .Version }}"
 
       - name: Open Pull Request
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const branchName = '${{ env.branch_name }}';

.github/workflows/superset-playwright.yml

@@ -0,0 +1,141 @@
+name: Playwright E2E Tests
+
+on:
+  push:
+    branches:
+      - "master"
+      - "[0-9].[0-9]*"
+  pull_request:
+    types: [synchronize, opened, reopened, ready_for_review]
+  workflow_dispatch:
+    inputs:
+      ref:
+        description: 'The branch or tag to checkout'
+        required: false
+        default: ''
+      pr_id:
+        description: 'The pull request ID to checkout'
+        required: false
+        default: ''
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  playwright-tests:
+    runs-on: ubuntu-22.04
+    # Allow workflow to succeed even if tests fail during shadow mode
+    continue-on-error: true
+    permissions:
+      contents: read
+      pull-requests: read
+    strategy:
+      fail-fast: false
+      matrix:
+        browser: ["chromium"]
+        app_root: ["", "/app/prefix"]
+    env:
+      SUPERSET_ENV: development
+      SUPERSET_CONFIG: tests.integration_tests.superset_test_config
+      SUPERSET__SQLALCHEMY_DATABASE_URI: postgresql+psycopg2://superset:superset@127.0.0.1:15432/superset
+      PYTHONPATH: ${{ github.workspace }}
+      REDIS_PORT: 16379
+      GITHUB_TOKEN: ${{ github.token }}
+    services:
+      postgres:
+        image: postgres:16-alpine
+        env:
+          POSTGRES_USER: superset
+          POSTGRES_PASSWORD: superset
+        ports:
+          - 15432:5432
+      redis:
+        image: redis:7-alpine
+        ports:
+          - 16379:6379
+    steps:
+      # -------------------------------------------------------
+      # 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@v5
+        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@v5
+        with:
+          persist-credentials: false
+          ref: ${{ github.event.inputs.ref }}
+          submodules: recursive
+      - name: Checkout using PR ID (workflow_dispatch)
+        if: github.event_name == 'workflow_dispatch' && github.event.inputs.pr_id != ''
+        uses: actions/checkout@v5
+        with:
+          persist-credentials: false
+          ref: refs/pull/${{ github.event.inputs.pr_id }}/merge
+          submodules: recursive
+      # -------------------------------------------------------
+      - name: Check for file changes
+        id: check
+        uses: ./.github/actions/change-detector/
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Setup Python
+        uses: ./.github/actions/setup-backend/
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+      - name: Setup postgres
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+        uses: ./.github/actions/cached-dependencies
+        with:
+          run: setup-postgres
+      - name: Import test data
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+        uses: ./.github/actions/cached-dependencies
+        with:
+          run: testdata
+      - name: Setup Node.js
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+        uses: actions/setup-node@v5
+        with:
+          node-version-file: './superset-frontend/.nvmrc'
+      - name: Install npm dependencies
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+        uses: ./.github/actions/cached-dependencies
+        with:
+          run: npm-install
+      - name: Build javascript packages
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+        uses: ./.github/actions/cached-dependencies
+        with:
+          run: build-instrumented-assets
+      - name: Install Playwright
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+        uses: ./.github/actions/cached-dependencies
+        with:
+          run: playwright-install
+      - name: Run Playwright
+        if: steps.check.outputs.python || steps.check.outputs.frontend
+        uses: ./.github/actions/cached-dependencies
+        env:
+          NODE_OPTIONS: "--max-old-space-size=4096"
+        with:
+          run: playwright-run ${{ matrix.app_root }}
+      - name: Set safe app root
+        if: failure()
+        id: set-safe-app-root
+        run: |
+          APP_ROOT="${{ matrix.app_root }}"
+          SAFE_APP_ROOT=${APP_ROOT//\//_}
+          echo "safe_app_root=$SAFE_APP_ROOT" >> $GITHUB_OUTPUT
+      - name: Upload Playwright Artifacts
+        uses: actions/upload-artifact@v4
+        if: failure()
+        with:
+          path: |
+            ${{ github.workspace }}/superset-frontend/playwright-results/
+            ${{ github.workspace }}/superset-frontend/test-results/
+          name: playwright-artifact-${{ github.run_id }}-${{ github.job }}-${{ matrix.browser }}--${{ steps.set-safe-app-root.outputs.safe_app_root }}

.github/workflows/superset-python-integrationtest.yml

@@ -41,7 +41,7 @@ jobs:
           - 16379:6379
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
@@ -99,7 +99,7 @@ jobs:
           - 16379:6379
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
@@ -152,7 +152,7 @@ jobs:
           - 16379:6379
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/superset-python-presto-hive.yml

@@ -48,7 +48,7 @@ jobs:
           - 16379:6379
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
@@ -108,7 +108,7 @@ jobs:
           - 16379:6379
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/superset-python-unittest.yml

@@ -24,7 +24,7 @@ jobs:
       PYTHONPATH: ${{ github.workspace }}
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/superset-translations.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive
@@ -31,7 +31,7 @@ jobs:
 
       - name: Setup Node.js
         if: steps.check.outputs.frontend
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file:  './superset-frontend/.nvmrc'
       - name: Install dependencies
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
           submodules: recursive

.github/workflows/superset-websocket.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
       - name: Install dependencies

.github/workflows/supersetbot.yml

@@ -26,7 +26,7 @@ jobs:
     steps:
       - name: Quickly add thumbs up!
         if: github.event_name == 'issue_comment' && contains(github.event.comment.body, '@supersetbot')
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const [owner, repo] = process.env.GITHUB_REPOSITORY.split('/')
@@ -38,7 +38,7 @@ jobs:
             });
 
       - name: "Checkout ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 

.github/workflows/tag-release.yml

@@ -42,12 +42,12 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        build_preset: ["dev", "lean", "py310", "websocket", "dockerize", "py311"]
+        build_preset: ["dev", "lean", "py310", "websocket", "dockerize", "py311", "py312"]
       fail-fast: false
     steps:
 
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -60,7 +60,7 @@ jobs:
           build: "true"
 
       - name: Use Node.js 20
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: 20
 
@@ -107,12 +107,12 @@ jobs:
     steps:
 
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
       - name: Use Node.js 20
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: 20
 

.github/workflows/tech-debt.yml

@@ -27,10 +27,10 @@ jobs:
     name: Generate Reports
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version-file: './superset-frontend/.nvmrc'
 

.github/workflows/welcome-new-users.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Welcome Message
-        uses: actions/first-interaction@v2
+        uses: actions/first-interaction@v3
         continue-on-error: true
         with:
           repo-token: ${{ github.token }}

.gitignore

@@ -43,7 +43,7 @@ _modules
 _static
 build
 app.db
-apache_superset.egg-info/
+*.egg-info/
 changelog.sh
 dist
 dump.rdb
@@ -130,4 +130,7 @@ superset/static/stats/statistics.html
 
 # LLM-related
 CLAUDE.local.md
+PROJECT.md
 .aider*
+.claude_rc*
+.env.local

.pre-commit-config.yaml

@@ -23,7 +23,9 @@ repos:
     rev: v1.15.0
     hooks:
       - id: mypy
+        name: mypy (main)
         args: [--check-untyped-defs]
+        exclude: ^superset-extensions-cli/
         additional_dependencies: [
             types-simplejson,
             types-python-dateutil,
@@ -38,6 +40,10 @@ repos:
             types-paramiko,
             types-Markdown,
           ]
+      - id: mypy
+        name: mypy (superset-extensions-cli)
+        args: [--check-untyped-defs]
+        files: ^superset-extensions-cli/
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v5.0.0
     hooks:
@@ -54,25 +60,25 @@ repos:
         args: ["--markdown-linebreak-ext=md"]
   - repo: local
     hooks:
-    - id: eslint-frontend
-      name: eslint (frontend)
-      entry: ./scripts/eslint.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=$(echo "$@" | sed "s|docs/||g") && yarn eslint --fix --ext .js,.jsx,.ts,.tsx --quiet $FILES'
-      language: system
-      pass_filenames: true
-      files: ^docs/.*\.(js|jsx|ts|tsx)$
-    - id: type-checking-frontend
-      name: Type-Checking (Frontend)
-      entry: ./scripts/check-type.js package=superset-frontend excludeDeclarationDir=cypress-base
-      language: system
-      files: ^superset-frontend\/.*\.(js|jsx|ts|tsx)$
-      exclude: ^superset-frontend/cypress-base\/
-      require_serial: true
+      - id: eslint-frontend
+        name: eslint (frontend)
+        entry: ./scripts/eslint.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=$(echo "$@" | sed "s|docs/||g") && yarn eslint --fix --quiet $FILES'
+        language: system
+        pass_filenames: true
+        files: ^docs/.*\.(js|jsx|ts|tsx)$
+      - id: type-checking-frontend
+        name: Type-Checking (Frontend)
+        entry: ./scripts/check-type.js package=superset-frontend excludeDeclarationDir=cypress-base
+        language: system
+        files: ^superset-frontend\/.*\.(js|jsx|ts|tsx)$
+        exclude: ^superset-frontend/cypress-base\/
+        require_serial: true
   # blacklist unsafe functions like make_url (see #19526)
   - repo: https://github.com/skorokithakis/blacklist-pre-commit-hook
     rev: e2f070289d8eddcaec0b580d3bde29437e7c8221
@@ -94,21 +100,21 @@ repos:
         args: [--fix]
   - repo: local
     hooks:
-    - id: pylint
-      name: pylint with custom Superset plugins
-      entry: bash
-      language: system
-      types: [python]
-      exclude: ^(tests/|superset/migrations/|scripts/|RELEASING/|docker/)
-      args:
-        - -c
-        - |
-          TARGET_BRANCH=${GITHUB_BASE_REF:-master}
-          git fetch origin "$TARGET_BRANCH"
-          BASE=$(git merge-base origin/"$TARGET_BRANCH" HEAD)
-          files=$(git diff --name-only --diff-filter=ACM "$BASE"..HEAD | grep '^superset/.*\.py$' || true)
-          if [ -n "$files" ]; then
-            pylint --rcfile=.pylintrc --load-plugins=superset.extensions.pylint --reports=no $files
-          else
-            echo "No Python files to lint."
-          fi
+      - id: pylint
+        name: pylint with custom Superset plugins
+        entry: bash
+        language: system
+        types: [python]
+        exclude: ^(tests/|superset/migrations/|scripts/|RELEASING/|docker/)
+        args:
+          - -c
+          - |
+            TARGET_BRANCH=${GITHUB_BASE_REF:-master}
+            git fetch origin "$TARGET_BRANCH"
+            BASE=$(git merge-base origin/"$TARGET_BRANCH" HEAD)
+            files=$(git diff --name-only --diff-filter=ACM "$BASE"..HEAD | grep '^superset/.*\.py$' || true)
+            if [ -n "$files" ]; then
+              pylint --rcfile=.pylintrc --load-plugins=superset.extensions.pylint --reports=no $files
+            else
+              echo "No Python files to lint."
+            fi

.rat-excludes

@@ -32,6 +32,8 @@ apache_superset.egg-info
 # json and csv in general cannot have comments
 .*json
 .*csv
+# jinja templates often need to be as-is
+.*j2
 # Generated doc files
 env/*
 docs/.htaccess*
@@ -71,6 +73,7 @@ ibm-db2.svg
 postgresql.svg
 snowflake.svg
 ydb.svg
+loading.svg
 
 # docs-related
 erd.puml
@@ -79,6 +82,7 @@ intro_header.txt
 
 # for LLMs
 llm-context.md
+AGENTS.md
 LLMS.md
 CLAUDE.md
 CURSOR.md

AGENTS.md

@@ -9,13 +9,17 @@ Apache Superset is a data visualization platform with Flask/Python backend and R
 ### Frontend Modernization
 - **NO `any` types** - Use proper TypeScript types
 - **NO JavaScript files** - Convert to TypeScript (.ts/.tsx)
-- **Use @superset-ui/core** - Don't import Ant Design directly
+- **Use @superset-ui/core** - Don't import Ant Design directly, prefer Ant Design component wrappers from @superset-ui/core/components
+- **Use antd theming tokens** - Prefer antd tokens over legacy theming tokens
+- **Avoid custom css and styles** - Follow antd best practices and avoid styling and custom CSS whenever possible
 
 ### Testing Strategy Migration
 - **Prefer unit tests** over integration tests
-- **Prefer integration tests** over Cypress end-to-end tests
-- **Cypress is last resort** - Actively moving away from Cypress
+- **Prefer integration tests** over end-to-end tests
+- **Use Playwright for E2E tests** - Migrating from Cypress
+- **Cypress is deprecated** - Will be removed once migration is completed
 - **Use Jest + React Testing Library** for component testing
+- **Use `test()` instead of `describe()`** - Follow [avoid nesting when testing](https://kentcdodds.com/blog/avoid-nesting-when-youre-testing) principles
 
 ### Backend Type Safety
 - **Add type hints** - All new Python code needs proper typing
@@ -64,7 +68,11 @@ superset/
 
 ### Apache License Headers
 - **New files require ASF license headers** - When creating new code files, include the standard Apache Software Foundation license header
-- **LLM instruction files are excluded** - Files like LLMS.md, CLAUDE.md, etc. are in `.rat-excludes` to avoid header token overhead
+- **LLM instruction files are excluded** - Files like AGENTS.md, CLAUDE.md, etc. are in `.rat-excludes` to avoid header token overhead
+
+### Code Comments
+- **Avoid time-specific language** - Don't use words like "now", "currently", "today" in code comments as they become outdated
+- **Write timeless comments** - Comments should remain accurate regardless of when they're read
 
 ## Documentation Requirements
 
@@ -104,6 +112,18 @@ superset/
 npm run test                           # All tests
 npm run test -- filename.test.tsx     # Single file
 
+# E2E Tests (Playwright - NEW)
+npm run playwright:test                # All Playwright tests
+npm run playwright:ui                  # Interactive UI mode
+npm run playwright:headed              # See browser during tests
+npx playwright test tests/auth/login.spec.ts  # Single file
+npm run playwright:debug tests/auth/login.spec.ts  # Debug specific file
+
+# E2E Tests (Cypress - DEPRECATED)
+cd superset-frontend/cypress-base
+npm run cypress-run-chrome             # All Cypress tests (headless)
+npm run cypress-debug                  # Interactive Cypress UI
+
 # Backend  
 pytest                                 # All tests
 pytest tests/unit_tests/specific_test.py  # Single file
@@ -133,6 +153,19 @@ curl -f http://localhost:8088/health || echo "❌ Setup required - see https://s
 - **Use negation operator**: `~Model.field` instead of `== False` to avoid ruff E712 errors
 - **Example**: `~Model.is_active` instead of `Model.is_active == False`
 
+## Pull Request Guidelines
+
+**When creating pull requests:**
+
+1. **Read the current PR template**: Always check `.github/PULL_REQUEST_TEMPLATE.md` for the latest format
+2. **Use the template sections**: Include all sections from the template (SUMMARY, BEFORE/AFTER, TESTING INSTRUCTIONS, ADDITIONAL INFORMATION)
+3. **Follow PR title conventions**: Use [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/)
+   - Format: `type(scope): description`
+   - Example: `fix(dashboard): load charts correctly`
+   - Types: `fix`, `feat`, `docs`, `style`, `refactor`, `perf`, `test`, `chore`
+
+**Important**: Always reference the actual template file at `.github/PULL_REQUEST_TEMPLATE.md` instead of using cached content, as the template may be updated over time.
+
 ## Pre-commit Validation
 
 **Use pre-commit hooks for quality validation:**

CHANGELOG.md

@@ -44,4 +44,8 @@ under the License.
 - [4.0.1](./CHANGELOG/4.0.1.md)
 - [4.0.2](./CHANGELOG/4.0.2.md)
 - [4.1.0](./CHANGELOG/4.1.0.md)
+- [4.1.1](./CHANGELOG/4.1.1.md)
+- [4.1.2](./CHANGELOG/4.1.2.md)
+- [4.1.3](./CHANGELOG/4.1.3.md)
+- [4.1.4](./CHANGELOG/4.1.4.md)
 - [5.0.0](./CHANGELOG/5.0.0.md)

CHANGELOG/4.1.4.md

@@ -0,0 +1,33 @@
+<!--
+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.
+-->
+
+## Change Log
+
+### 4.1.4 (Thu Jul 24 08:30:04 2025 -0300)
+
+**Database Migrations**
+
+**Features**
+
+**Fixes**
+- [#34289](https://github.com/apache/superset/pull/34289) fix: Saved queries list break if one query can't be parsed (@michael-s-molina)
+- [#33059](https://github.com/apache/superset/pull/33059) fix: Adds missing __init__ file to commands/logs (@michael-s-molina)
+
+**Others**
+- [#32236](https://github.com/apache/superset/pull/32236) chore(deps): bump cryptography from 43.0.3 to 44.0.1 (@dependabot[bot])

CLAUDE.md

@@ -1 +1 @@
-LLMS.md
+AGENTS.md

CONTRIBUTING.md

@@ -5,7 +5,7 @@
  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
+ with the License.  You may obtain a copy of the License at
 
    http://www.apache.org/licenses/LICENSE-2.0
 
@@ -16,9 +16,23 @@
  specific language governing permissions and limitations
  under the License.
 -->
+# Contributing to Apache Superset
+
 Contributions are welcome and are greatly appreciated! Every
 little bit helps, and credit will always be given.
 
-All matters related to contributions have moved to [this section of
-the official Superset documentation](https://superset.apache.org/docs/contributing/). Source for the documentation is
-[located here](https://github.com/apache/superset/tree/master/docs/docs).
+## Developer Portal
+
+All developer and contribution documentation has moved to the Apache Superset Developer Portal:
+
+**[📚 View the Developer Portal →](https://superset.apache.org/developer_portal/)**
+
+The Developer Portal includes comprehensive guides for:
+- [Contributing Overview](https://superset.apache.org/developer_portal/contributing/overview)
+- [Development Setup](https://superset.apache.org/developer_portal/contributing/development-setup)
+- [Submitting Pull Requests](https://superset.apache.org/developer_portal/contributing/submitting-pr)
+- [Contribution Guidelines](https://superset.apache.org/developer_portal/contributing/guidelines)
+- [Code Review Process](https://superset.apache.org/developer_portal/contributing/code-review)
+- [Development How-tos](https://superset.apache.org/developer_portal/contributing/howtos)
+
+Source for the Developer Portal documentation is [located here](https://github.com/apache/superset/tree/master/docs/developer_portal).

Dockerfile

@@ -18,7 +18,7 @@
 ######################################################################
 # Node stage to deal with static asset construction
 ######################################################################
-ARG PY_VER=3.11.13-slim-bookworm
+ARG PY_VER=3.11.13-slim-trixie
 
 # If BUILDPLATFORM is null, set it to 'amd64' (or leave as is otherwise).
 ARG BUILDPLATFORM=${BUILDPLATFORM:-amd64}
@@ -26,10 +26,13 @@ ARG BUILDPLATFORM=${BUILDPLATFORM:-amd64}
 # Include translations in the final build
 ARG BUILD_TRANSLATIONS="false"
 
+# Build arg to pre-populate examples DuckDB file
+ARG LOAD_EXAMPLES_DUCKDB="false"
+
 ######################################################################
 # superset-node-ci used as a base for building frontend assets and CI
 ######################################################################
-FROM --platform=${BUILDPLATFORM} node:20-bookworm-slim AS superset-node-ci
+FROM --platform=${BUILDPLATFORM} node:20-trixie-slim AS superset-node-ci
 ARG BUILD_TRANSLATIONS
 ENV BUILD_TRANSLATIONS=${BUILD_TRANSLATIONS}
 ARG DEV_MODE="false"           # Skip frontend build in dev mode
@@ -64,7 +67,7 @@ RUN --mount=type=bind,source=./superset-frontend/package.json,target=./package.j
     --mount=type=bind,source=./superset-frontend/package-lock.json,target=./package-lock.json \
     --mount=type=cache,target=/root/.cache \
     --mount=type=cache,target=/root/.npm \
-    if [ "$DEV_MODE" = "false" ]; then \
+    if [ "${DEV_MODE}" = "false" ]; then \
         npm ci; \
     else \
         echo "Skipping 'npm ci' in dev mode"; \
@@ -80,7 +83,7 @@ FROM superset-node-ci AS superset-node
 
 # Build the frontend if not in dev mode
 RUN --mount=type=cache,target=/root/.npm \
-    if [ "$DEV_MODE" = "false" ]; then \
+    if [ "${DEV_MODE}" = "false" ]; then \
         echo "Running 'npm run ${BUILD_CMD}'"; \
         npm run ${BUILD_CMD}; \
     else \
@@ -91,11 +94,10 @@ RUN --mount=type=cache,target=/root/.npm \
 COPY superset/translations /app/superset/translations
 
 # Build translations if enabled, then cleanup localization files
-RUN if [ "$BUILD_TRANSLATIONS" = "true" ]; then \
+RUN if [ "${BUILD_TRANSLATIONS}" = "true" ]; then \
         npm run build-translation; \
     fi; \
-    rm -rf /app/superset/translations/*/*/*.po; \
-    rm -rf /app/superset/translations/*/*/*.mo;
+    rm -rf /app/superset/translations/*/*/*.[po,mo];
 
 
 ######################################################################
@@ -106,10 +108,10 @@ FROM python:${PY_VER} AS python-base
 ARG SUPERSET_HOME="/app/superset_home"
 ENV SUPERSET_HOME=${SUPERSET_HOME}
 
-RUN mkdir -p $SUPERSET_HOME
+RUN mkdir -p ${SUPERSET_HOME}
 RUN useradd --user-group -d ${SUPERSET_HOME} -m --no-log-init --shell /bin/bash superset \
-    && chmod -R 1777 $SUPERSET_HOME \
-    && chown -R superset:superset $SUPERSET_HOME
+    && chmod -R 1777 ${SUPERSET_HOME} \
+    && chown -R superset:superset ${SUPERSET_HOME}
 
 # Some bash scripts needed throughout the layers
 COPY --chmod=755 docker/*.sh /app/docker/
@@ -134,17 +136,19 @@ RUN --mount=type=cache,target=/root/.cache/uv \
     . /app/.venv/bin/activate && /app/docker/pip-install.sh --requires-build-essential -r requirements/translations.txt
 
 COPY superset/translations/ /app/translations_mo/
-RUN if [ "$BUILD_TRANSLATIONS" = "true" ]; then \
+RUN if [ "${BUILD_TRANSLATIONS}" = "true" ]; then \
         pybabel compile -d /app/translations_mo | true; \
     fi; \
-    rm -f /app/translations_mo/*/*/*.po; \
-    rm -f /app/translations_mo/*/*/*.json;
+    rm -f /app/translations_mo/*/*/*.[po,json]
 
 ######################################################################
 # Python APP common layer
 ######################################################################
 FROM python-base AS python-common
 
+# Re-declare build arg to receive it in this stage
+ARG LOAD_EXAMPLES_DUCKDB
+
 ENV SUPERSET_HOME="/app/superset_home" \
     HOME="/app/superset_home" \
     SUPERSET_ENV="production" \
@@ -170,11 +174,11 @@ RUN mkdir -p \
 ARG INCLUDE_CHROMIUM="false"
 ARG INCLUDE_FIREFOX="false"
 RUN --mount=type=cache,target=${SUPERSET_HOME}/.cache/uv \
-    if [ "$INCLUDE_CHROMIUM" = "true" ] || [ "$INCLUDE_FIREFOX" = "true" ]; then \
+    if [ "${INCLUDE_CHROMIUM}" = "true" ] || [ "${INCLUDE_FIREFOX}" = "true" ]; then \
         uv pip install playwright && \
         playwright install-deps && \
-        if [ "$INCLUDE_CHROMIUM" = "true" ]; then playwright install chromium; fi && \
-        if [ "$INCLUDE_FIREFOX" = "true" ]; then playwright install firefox; fi; \
+        if [ "${INCLUDE_CHROMIUM}" = "true" ]; then playwright install chromium; fi && \
+        if [ "${INCLUDE_FIREFOX}" = "true" ]; then playwright install firefox; fi; \
     else \
         echo "Skipping browser installation"; \
     fi
@@ -196,6 +200,18 @@ RUN /app/docker/apt-install.sh \
       libecpg-dev \
       libldap2-dev
 
+# Pre-load examples DuckDB file if requested
+RUN if [ "$LOAD_EXAMPLES_DUCKDB" = "true" ]; then \
+        mkdir -p /app/data && \
+        echo "Downloading pre-built examples.duckdb..." && \
+        curl -L -o /app/data/examples.duckdb \
+            "https://raw.githubusercontent.com/apache-superset/examples-data/master/examples.duckdb" && \
+        chown -R superset:superset /app/data; \
+    else \
+        mkdir -p /app/data && \
+        chown -R superset:superset /app/data; \
+    fi
+
 # Copy compiled things from previous stages
 COPY --from=superset-node /app/superset/static/assets superset/static/assets
 
@@ -219,6 +235,10 @@ FROM python-common AS lean
 
 # Install Python dependencies using docker/pip-install.sh
 COPY requirements/base.txt requirements/
+
+# Copy superset-core package needed for editable install in base.txt
+COPY superset-core superset-core
+
 RUN --mount=type=cache,target=${SUPERSET_HOME}/.cache/uv \
     /app/docker/pip-install.sh --requires-build-essential -r requirements/base.txt
 # Install the superset package
@@ -241,6 +261,11 @@ RUN /app/docker/apt-install.sh \
 
 # Copy development requirements and install them
 COPY requirements/*.txt requirements/
+
+# Copy local packages needed for editable installs in development.txt
+COPY superset-core superset-core
+COPY superset-extensions-cli superset-extensions-cli
+
 # Install Python dependencies using docker/pip-install.sh
 RUN --mount=type=cache,target=${SUPERSET_HOME}/.cache/uv \
     /app/docker/pip-install.sh --requires-build-essential -r requirements/development.txt
@@ -258,6 +283,15 @@ USER superset
 ######################################################################
 FROM lean AS ci
 USER root
-RUN uv pip install .[postgres]
+RUN uv pip install .[postgres,duckdb]
+USER superset
+CMD ["/app/docker/entrypoints/docker-ci.sh"]
+
+######################################################################
+# Showtime image - lean + DuckDB for examples database
+######################################################################
+FROM lean AS showtime
+USER root
+RUN uv pip install .[duckdb]
 USER superset
 CMD ["/app/docker/entrypoints/docker-ci.sh"]

GEMINI.md

@@ -1 +1 @@
-LLMS.md
+AGENTS.md

GPT.md

@@ -1 +1 @@
-LLMS.md
+AGENTS.md

Makefile

@@ -91,7 +91,7 @@ js-format:
 	cd superset-frontend; npm run prettier
 
 flask-app:
-	flask run -p 8088 --with-threads --reload --debugger
+	flask run -p 8088 --reload --debugger
 
 node-app:
 	cd superset-frontend; npm run dev-server

RELEASING/Dockerfile.from_local_tarball

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-FROM python:3.10-slim-bookworm
+FROM python:3.10-slim-trixie
 
 RUN useradd --user-group --create-home --no-log-init --shell /bin/bash superset
 

RELEASING/Dockerfile.from_svn_tarball

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-FROM python:3.10-slim-bookworm
+FROM python:3.10-slim-trixie
 
 RUN useradd --user-group --create-home --no-log-init --shell /bin/bash superset
 

RELEASING/Dockerfile.make_docs

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

RELEASING/Dockerfile.make_tarball

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-FROM python:3.10-slim-bookworm
+FROM python:3.10-slim-trixie
 
 RUN apt-get update -y
 RUN apt-get install -y \

RELEASING/README.md

@@ -469,6 +469,10 @@ an account first if you don't have one, and reference your username
 while requesting access to push packages.
 
 ```bash
+# Run this first to make sure you are uploading the right version.
+# Pypi does not allow you to delete or retract once uplaoded.
+twine check dist/*
+
 twine upload dist/*
 ```
 
@@ -518,6 +522,8 @@ takes the version (ie `3.1.1`), the git reference (any SHA, tag or branch
 reference), and whether to force the `latest` Docker tag on the
 generated images.
 
+**NOTE:** If the docker image isn't built, you'll need to run this [GH action](https://github.com/apache/superset/actions/workflows/tag-release.yml) where you provide it the tag sha.
+
 ### Npm Release
 
 You might want to publish the latest @superset-ui release to npm

RELEASING/make_tarball.sh

@@ -32,11 +32,10 @@ else
   SUPERSET_VERSION="${1}"
   SUPERSET_RC="${2}"
   SUPERSET_PGP_FULLNAME="${3}"
+  SUPERSET_VERSION_RC="${SUPERSET_VERSION}rc${SUPERSET_RC}"
   SUPERSET_RELEASE_RC_TARBALL="apache_superset-${SUPERSET_VERSION_RC}-source.tar.gz"
 fi
 
-SUPERSET_VERSION_RC="${SUPERSET_VERSION}rc${SUPERSET_RC}"
-
 if [ -z "${SUPERSET_SVN_DEV_PATH}" ]; then
   SUPERSET_SVN_DEV_PATH="$HOME/svn/superset_dev"
 fi

RESOURCES/FEATURE_FLAGS.md

@@ -28,6 +28,7 @@ These features are considered **unfinished** and should only be used on developm
 [//]: # "PLEASE KEEP THE LIST SORTED ALPHABETICALLY"
 
 - ALERT_REPORT_TABS
+- DATE_RANGE_TIMESHIFTS_ENABLED
 - ENABLE_ADVANCED_DATA_TYPES
 - PRESTO_EXPAND_DATA
 - SHARE_QUERIES_VIA_KV_STORE

RESOURCES/STANDARD_ROLES.md

@@ -94,9 +94,9 @@ under the License.
 | can available domains on Superset                |:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|O|
 | can request access on Superset                   |:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|O|
 | can dashboard on Superset                        |:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|O|
-| can post on TableSchemaView                      |:heavy_check_mark:|:heavy_check_mark:|O|O|
-| can expanded on TableSchemaView                  |:heavy_check_mark:|:heavy_check_mark:|O|O|
-| can delete on TableSchemaView                    |:heavy_check_mark:|:heavy_check_mark:|O|O|
+| can post on TableSchemaView                      |:heavy_check_mark:|O|O|:heavy_check_mark:|
+| can expanded on TableSchemaView                  |:heavy_check_mark:|O|O|:heavy_check_mark:|
+| can delete on TableSchemaView                    |:heavy_check_mark:|O|O|:heavy_check_mark:|
 | can get on TabStateView                          |:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|
 | can post on TabStateView                         |:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|
 | can delete query on TabStateView                 |:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|:heavy_check_mark:|

UPDATING.md

@@ -23,6 +23,17 @@ This file documents any backwards-incompatible changes in Superset and
 assists people when migrating to a new version.
 
 ## Next
+- [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.
+- [35062](https://github.com/apache/superset/pull/35062): Changed the function signature of `setupExtensions` to `setupCodeOverrides` with options as arguments.
+- [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.
+- [34782](https://github.com/apache/superset/pull/34782): Dataset exports now include the dataset ID in their file name (similar to charts and dashboards). If managing assets as code, make sure to rename existing dataset YAMLs to include the ID (and avoid duplicated files).
+- [34536](https://github.com/apache/superset/pull/34536): The `ENVIRONMENT_TAG_CONFIG` color values have changed to support only Ant Design semantic colors. Update your `superset_config.py`:
+  - Change `"error.base"` to just `"error"` after this PR
+  - Change any hex color values to one of: `"success"`, `"processing"`, `"error"`, `"warning"`, `"default"`
+  - Custom colors are no longer supported to maintain consistency with Ant Design components
+- [34561](https://github.com/apache/superset/pull/34561) Added tiled screenshot functionality for Playwright-based reports to handle large dashboards more efficiently. When enabled (default: `SCREENSHOT_TILED_ENABLED = True`), dashboards with 20+ charts or height exceeding 5000px will be captured using multiple viewport-sized tiles and combined into a single image. This improves report generation performance and reliability for large dashboards.
+Note: Pillow is now a required dependency (previously optional) to support image processing for tiled screenshots.
+`thumbnails` optional dependency is now deprecated and will be removed in the next major release (7.0).
 - [33084](https://github.com/apache/superset/pull/33084) The DISALLOWED_SQL_FUNCTIONS configuration now includes additional potentially sensitive database functions across PostgreSQL, MySQL, SQLite, MS SQL Server, and ClickHouse. Existing queries using these functions may now be blocked. Review your SQL Lab queries and dashboards if you encounter "disallowed function" errors after upgrading
 - [34235](https://github.com/apache/superset/pull/34235) CSV exports now use `utf-8-sig` encoding by default to include a UTF-8 BOM, improving compatibility with Excel.
 - [34258](https://github.com/apache/superset/pull/34258) changing the default in Dockerfile to INCLUDE_CHROMIUM="false" (from "true") in the past. This ensures the `lean` layer is lean by default, and people can opt-in to the `chromium` layer by setting the build arg `INCLUDE_CHROMIUM=true`. This is a breaking change for anyone using the `lean` layer, as it will no longer include Chromium by default.
@@ -32,6 +43,7 @@ assists people when migrating to a new version.
 - [32317](https://github.com/apache/superset/pull/32317) The horizontal filter bar feature is now out of testing/beta development and its feature flag `HORIZONTAL_FILTER_BAR` has been removed.
 - [31590](https://github.com/apache/superset/pull/31590) Marks the begining of intricate work around supporting dynamic Theming, and breaks support for [THEME_OVERRIDES](https://github.com/apache/superset/blob/732de4ac7fae88e29b7f123b6cbb2d7cd411b0e4/superset/config.py#L671) in favor of a new theming system based on AntD V5. Likely this will be in disrepair until settling over the 5.x lifecycle.
 - [32432](https://github.com/apache/superset/pull/31260) Moves the List Roles FAB view to the frontend and requires `FAB_ADD_SECURITY_API` to be enabled in the configuration and `superset init` to be executed.
+- [34319](https://github.com/apache/superset/pull/34319) Drill to Detail and Drill By is now supported in Embedded mode, and also with the `DASHBOARD_RBAC` FF. If you don't want to expose these features in Embedded / `DASHBOARD_RBAC`, make sure the roles used for Embedded / `DASHBOARD_RBAC`don't have the required permissions to perform D2D actions.
 
 ## 5.0.0
 

docker-compose-image-tag.yml

@@ -28,6 +28,7 @@ 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
 
 services:

docker-compose-light.yml

@@ -17,16 +17,47 @@
 
 # -----------------------------------------------------------------------
 # Lightweight docker-compose for running multiple Superset instances
-# This includes only essential services: database, Redis, and Superset app
+# This includes only essential services: database and Superset app (no Redis)
 #
-# IMPORTANT: To run multiple instances in parallel:
+# RUNNING SUPERSET:
+# 1. Start services: docker-compose -f docker-compose-light.yml up
+# 2. Access at: http://localhost:9001 (or NODE_PORT if specified)
+#
+# RUNNING MULTIPLE INSTANCES:
 # - Use different project names: docker-compose -p project1 -f docker-compose-light.yml up
 # - Use different NODE_PORT values: NODE_PORT=9002 docker-compose -p project2 -f docker-compose-light.yml up
 # - Volumes are isolated by project name (e.g., project1_db_home_light, project2_db_home_light)
 # - Database name is intentionally different (superset_light) to prevent accidental cross-connections
 #
-# For verbose logging during development:
-# - Set SUPERSET_LOG_LEVEL=debug in docker/.env-local for detailed Superset logs
+# RUNNING TESTS WITH PYTEST:
+# Tests run in an isolated environment with a separate test database.
+# The pytest-runner service automatically creates and initializes the test database on first use.
+#
+# Basic usage:
+#   docker-compose -f docker-compose-light.yml run --rm pytest-runner pytest tests/unit_tests/
+#
+# Run specific test file:
+#   docker-compose -f docker-compose-light.yml run --rm pytest-runner pytest tests/unit_tests/test_foo.py
+#
+# Run with pytest options:
+#   docker-compose -f docker-compose-light.yml run --rm pytest-runner pytest -v -s -x tests/
+#
+# Force reload test database and run tests (when tests are failing due to bad state):
+#   docker-compose -f docker-compose-light.yml run --rm -e FORCE_RELOAD=true pytest-runner pytest tests/
+#
+# Run any command in test environment:
+#   docker-compose -f docker-compose-light.yml run --rm pytest-runner bash
+#   docker-compose -f docker-compose-light.yml run --rm pytest-runner pytest --collect-only
+#
+# For parallel test execution with different projects:
+#   docker-compose -p project1 -f docker-compose-light.yml run --rm pytest-runner pytest tests/
+#
+# DEVELOPMENT TIPS:
+# - First test run takes ~20-30 seconds (database creation + initialization)
+# - Subsequent runs are fast (~2-3 seconds startup)
+# - Use FORCE_RELOAD=true when you need a clean test database
+# - Tests use SimpleCache instead of Redis (no Redis required)
+# - Set SUPERSET_LOG_LEVEL=debug in docker/.env-local for detailed logs
 # -----------------------------------------------------------------------
 x-superset-user: &superset-user root
 x-superset-volumes: &superset-volumes
@@ -40,12 +71,13 @@ 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-bookworm
+    - apache/superset-cache:3.10-slim-trixie
   args:
     DEV_MODE: "true"
     INCLUDE_CHROMIUM: ${INCLUDE_CHROMIUM:-false}
     INCLUDE_FIREFOX: ${INCLUDE_FIREFOX:-false}
     BUILD_TRANSLATIONS: ${BUILD_TRANSLATIONS:-false}
+    LOAD_EXAMPLES_DUCKDB: ${LOAD_EXAMPLES_DUCKDB:-true}
 
 services:
   db-light:
@@ -56,13 +88,12 @@ services:
         required: false
     image: postgres:16
     restart: unless-stopped
-    # No host port mapping - only accessible within Docker network
     volumes:
       - db_home_light:/var/lib/postgresql/data
       - ./docker/docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
     environment:
-      # Override database name to avoid conflicts
       POSTGRES_DB: superset_light
+    command: postgres -c max_connections=200
 
   superset-light:
     env_file:
@@ -74,7 +105,6 @@ services:
       <<: *common-build
     command: ["/app/docker/docker-bootstrap.sh", "app"]
     restart: unless-stopped
-    # No host port mapping - accessed via webpack dev server proxy
     extra_hosts:
       - "host.docker.internal:host-gateway"
     user: *superset-user
@@ -83,16 +113,13 @@ services:
         condition: service_completed_successfully
     volumes: *superset-volumes
     environment:
-      # Override DB connection for light service
       DATABASE_HOST: db-light
       DATABASE_DB: superset_light
       POSTGRES_DB: superset_light
-      EXAMPLES_HOST: db-light
-      EXAMPLES_DB: superset_light
-      EXAMPLES_USER: superset
-      EXAMPLES_PASSWORD: superset
-      # Use light-specific config that disables Redis
+      SUPERSET__SQLALCHEMY_EXAMPLES_URI: "duckdb:////app/data/examples.duckdb"
       SUPERSET_CONFIG_PATH: /app/docker/pythonpath_dev/superset_config_docker_light.py
+      GITHUB_HEAD_REF: ${GITHUB_HEAD_REF:-}
+      GITHUB_SHA: ${GITHUB_SHA:-}
 
   superset-init-light:
     build:
@@ -103,21 +130,16 @@ services:
         required: true
       - path: docker/.env-local # optional override
         required: false
+    user: *superset-user
     depends_on:
       db-light:
         condition: service_started
-    user: *superset-user
     volumes: *superset-volumes
     environment:
-      # Override DB connection for light service
       DATABASE_HOST: db-light
       DATABASE_DB: superset_light
       POSTGRES_DB: superset_light
-      EXAMPLES_HOST: db-light
-      EXAMPLES_DB: superset_light
-      EXAMPLES_USER: superset
-      EXAMPLES_PASSWORD: superset
-      # Use light-specific config that disables Redis
+      SUPERSET__SQLALCHEMY_EXAMPLES_URI: "duckdb:////app/data/examples.duckdb"
       SUPERSET_CONFIG_PATH: /app/docker/pythonpath_dev/superset_config_docker_light.py
     healthcheck:
       disable: true
@@ -140,8 +162,11 @@ services:
       SCARF_ANALYTICS: "${SCARF_ANALYTICS:-}"
       # configuring the dev-server to use the host.docker.internal to connect to the backend
       superset: "http://superset-light:8088"
+      # Webpack dev server configuration
+      WEBPACK_DEVSERVER_HOST: "${WEBPACK_DEVSERVER_HOST:-127.0.0.1}"
+      WEBPACK_DEVSERVER_PORT: "${WEBPACK_DEVSERVER_PORT:-9000}"
     ports:
-      - "127.0.0.1:${NODE_PORT:-9001}:9000"  # Parameterized port
+      - "${NODE_PORT:-9001}:9000"  # Parameterized port, accessible on all interfaces
     command: ["/app/docker/docker-frontend.sh"]
     env_file:
       - path: docker/.env # default
@@ -150,6 +175,31 @@ services:
         required: false
     volumes: *superset-volumes
 
+  pytest-runner:
+    build:
+      <<: *common-build
+    entrypoint: ["/app/docker/docker-pytest-entrypoint.sh"]
+    env_file:
+      - path: docker/.env # default
+        required: true
+      - path: docker/.env-local # optional override
+        required: false
+    profiles:
+      - test  # Only starts when --profile test is used
+    depends_on:
+      db-light:
+        condition: service_started
+    user: *superset-user
+    volumes: *superset-volumes
+    environment:
+      DATABASE_HOST: db-light
+      DATABASE_DB: test
+      POSTGRES_DB: test
+      SUPERSET__SQLALCHEMY_DATABASE_URI: postgresql+psycopg2://superset:superset@db-light:5432/test
+      SUPERSET__SQLALCHEMY_EXAMPLES_URI: "duckdb:////app/data/examples.duckdb"
+      SUPERSET_CONFIG: superset_test_config_light
+      PYTHONPATH: /app/pythonpath:/app/docker/pythonpath_dev:/app
+
 volumes:
   superset_home_light:
     external: false

docker-compose-non-dev.yml

@@ -33,7 +33,7 @@ x-common-build: &common-build
   context: .
   target: dev
   cache_from:
-    - apache/superset-cache:3.10-slim-bookworm
+    - apache/superset-cache:3.10-slim-trixie
 
 services:
   redis:

docker-compose.yml

@@ -29,19 +29,22 @@ x-superset-volumes: &superset-volumes
   # /app/pythonpath_docker will be appended to the PYTHONPATH in the final container
   - ./docker:/app/docker
   - ./superset:/app/superset
+  - ./superset-core:/app/superset-core
   - ./superset-frontend:/app/superset-frontend
   - superset_home:/app/superset_home
   - ./tests:/app/tests
+  - superset_data:/app/data
 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-bookworm
+    - apache/superset-cache:3.10-slim-trixie
   args:
     DEV_MODE: "true"
     INCLUDE_CHROMIUM: ${INCLUDE_CHROMIUM:-false}
     INCLUDE_FIREFOX: ${INCLUDE_FIREFOX:-false}
     BUILD_TRANSLATIONS: ${BUILD_TRANSLATIONS:-false}
+    LOAD_EXAMPLES_DUCKDB: ${LOAD_EXAMPLES_DUCKDB:-true}
 
 services:
   nginx:
@@ -107,6 +110,8 @@ services:
       superset-init:
         condition: service_completed_successfully
     volumes: *superset-volumes
+    environment:
+      SUPERSET__SQLALCHEMY_EXAMPLES_URI: "duckdb:////app/data/examples.duckdb"
 
   superset-websocket:
     container_name: superset_websocket
@@ -158,6 +163,8 @@ services:
         condition: service_started
     user: *superset-user
     volumes: *superset-volumes
+    environment:
+      SUPERSET__SQLALCHEMY_EXAMPLES_URI: "duckdb:////app/data/examples.duckdb"
     healthcheck:
       disable: true
 
@@ -269,3 +276,5 @@ volumes:
     external: false
   redis:
     external: false
+  superset_data:
+    external: false

docker/apt-install.sh

@@ -18,7 +18,7 @@
 set -euo pipefail
 
 # Ensure this script is run as root
-if [[ $EUID -ne 0 ]]; then
+if [[ ${EUID} -ne 0 ]]; then
   echo "This script must be run as root" >&2
   exit 1
 fi
@@ -42,7 +42,7 @@ echo -e "${GREEN}Installing packages: $@${RESET}"
 apt-get install -yqq --no-install-recommends "$@"
 
 echo -e "${GREEN}Autoremoving unnecessary packages...${RESET}"
-apt-get autoremove -y
+apt-get autoremove -yqq --purge
 
 echo -e "${GREEN}Cleaning up package cache and metadata...${RESET}"
 apt-get clean

docker/docker-bootstrap.sh

@@ -21,8 +21,15 @@ set -eo pipefail
 # Make python interactive
 if [ "$DEV_MODE" == "true" ]; then
     if [ "$(whoami)" = "root" ] && command -v uv > /dev/null 2>&1; then
-      echo "Reinstalling the app in editable mode"
-      uv pip install -e .
+      # Always ensure superset-core is available
+      echo "Installing superset-core in editable mode"
+      uv pip install --no-deps -e /app/superset-core
+
+      # Only reinstall the main app for non-worker processes
+      if [ "$1" != "worker" ] && [ "$1" != "beat" ]; then
+        echo "Reinstalling the app in editable mode"
+        uv pip install -e .
+      fi
     fi
 fi
 REQUIREMENTS_LOCAL="/app/docker/requirements-local.txt"
@@ -34,7 +41,8 @@ if [ "$CYPRESS_CONFIG" == "true" ]; then
     export SUPERSET__SQLALCHEMY_DATABASE_URI=postgresql+psycopg2://superset:superset@db:5432/superset_cypress
     PORT=8081
 fi
-if [[ "$DATABASE_DIALECT" == postgres* ]] && [ "$(whoami)" = "root" ]; then
+# Skip postgres requirements installation for workers to avoid conflicts
+if [[ "$DATABASE_DIALECT" == postgres* ]] && [ "$(whoami)" = "root" ] && [ "$1" != "worker" ] && [ "$1" != "beat" ]; then
     # older images may not have the postgres dev requirements installed
     echo "Installing postgres requirements"
     if command -v uv > /dev/null 2>&1; then
@@ -72,7 +80,7 @@ case "${1}" in
     ;;
   app)
     echo "Starting web app (using development server)..."
-    flask run -p $PORT --with-threads --reload --debugger --host=0.0.0.0
+    flask run -p $PORT --reload --debugger --without-threads --host=0.0.0.0
     ;;
   app-gunicorn)
     echo "Starting web app..."

docker/docker-init.sh

@@ -69,6 +69,8 @@ echo_step "3" "Complete" "Setting up roles and perms"
 if [ "$SUPERSET_LOAD_EXAMPLES" = "yes" ]; then
     # Load some data to play with
     echo_step "4" "Starting" "Loading examples"
+
+
     # If Cypress run which consumes superset_test_config – load required data for tests
     if [ "$CYPRESS_CONFIG" == "true" ]; then
         superset load_examples --load-test-data

docker/docker-pytest-entrypoint.sh

@@ -0,0 +1,152 @@
+#!/bin/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 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.
+#
+
+set -e
+
+# Wait for PostgreSQL to be ready
+echo "Waiting for database to be ready..."
+for i in {1..30}; do
+  if python3 -c "
+import psycopg2
+try:
+    conn = psycopg2.connect(host='db-light', user='superset', password='superset', database='superset_light')
+    conn.close()
+    print('Database is ready!')
+except:
+    exit(1)
+" 2>/dev/null; then
+    echo "Database connection established!"
+    break
+  fi
+  echo "Waiting for database... ($i/30)"
+  if [ $i -eq 30 ]; then
+    echo "Database connection timeout after 30 seconds"
+    exit 1
+  fi
+  sleep 1
+done
+
+# Handle database setup based on FORCE_RELOAD
+if [ "${FORCE_RELOAD}" = "true" ]; then
+  echo "Force reload requested - resetting test database"
+  # Drop and recreate the test database using Python
+  python3 -c "
+import psycopg2
+from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
+
+# Connect to default database
+conn = psycopg2.connect(host='db-light', user='superset', password='superset', database='superset_light')
+conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
+cur = conn.cursor()
+
+# Drop and recreate test database
+try:
+    cur.execute('DROP DATABASE IF EXISTS test')
+except:
+    pass
+
+cur.execute('CREATE DATABASE test')
+conn.close()
+
+# Connect to test database to create schemas
+conn = psycopg2.connect(host='db-light', user='superset', password='superset', database='test')
+conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
+cur = conn.cursor()
+
+cur.execute('CREATE SCHEMA sqllab_test_db')
+cur.execute('CREATE SCHEMA admin_database')
+
+cur.close()
+conn.close()
+print('Test database reset successfully')
+"
+  # Use --no-reset-db since we already reset it
+  FLAGS="--no-reset-db"
+else
+  echo "Using existing test database (set FORCE_RELOAD=true to reset)"
+  FLAGS="--no-reset-db"
+
+  # Ensure test database exists using Python
+  python3 -c "
+import psycopg2
+from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
+
+# Check if test database exists
+try:
+    conn = psycopg2.connect(host='db-light', user='superset', password='superset', database='test')
+    conn.close()
+    print('Test database already exists')
+except:
+    print('Creating test database...')
+    # Connect to default database to create test database
+    conn = psycopg2.connect(host='db-light', user='superset', password='superset', database='superset_light')
+    conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
+    cur = conn.cursor()
+
+    # Create test database
+    cur.execute('CREATE DATABASE test')
+    conn.close()
+
+    # Connect to test database to create schemas
+    conn = psycopg2.connect(host='db-light', user='superset', password='superset', database='test')
+    conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
+    cur = conn.cursor()
+
+    cur.execute('CREATE SCHEMA IF NOT EXISTS sqllab_test_db')
+    cur.execute('CREATE SCHEMA IF NOT EXISTS admin_database')
+
+    cur.close()
+    conn.close()
+    print('Test database created successfully')
+"
+fi
+
+# Always run database migrations to ensure schema is up to date
+echo "Running database migrations..."
+cd /app
+superset db upgrade
+
+# Initialize test environment if needed
+if [ "${FORCE_RELOAD}" = "true" ] || [ ! -f "/app/superset_home/.test_initialized" ]; then
+  echo "Initializing test environment..."
+  # Run initialization commands
+  superset init
+  echo "Loading test users..."
+  superset load-test-users
+
+  # Mark as initialized
+  touch /app/superset_home/.test_initialized
+else
+  echo "Test environment already initialized (skipping init and load-test-users)"
+  echo "Tip: Use FORCE_RELOAD=true to reinitialize the test database"
+fi
+
+# Create missing scripts needed for tests
+if [ ! -f "/app/scripts/tag_latest_release.sh" ]; then
+  echo "Creating missing tag_latest_release.sh script for tests..."
+  cp /app/docker/tag_latest_release.sh /app/scripts/tag_latest_release.sh 2>/dev/null || true
+fi
+
+# Install pip module for Shillelagh compatibility (aligns with CI environment)
+echo "Installing pip module for Shillelagh compatibility..."
+uv pip install pip
+
+# If arguments provided, execute them
+if [ $# -gt 0 ]; then
+  exec "$@"
+fi

docker/entrypoints/run-server.sh

@@ -26,7 +26,7 @@ gunicorn \
     --workers ${SERVER_WORKER_AMOUNT:-1} \
     --worker-class ${SERVER_WORKER_CLASS:-gthread} \
     --threads ${SERVER_THREADS_AMOUNT:-20} \
-    --log-level "${GUNICORN_LOGLEVEL:info}" \
+    --log-level "${GUNICORN_LOGLEVEL:-info}" \
     --timeout ${GUNICORN_TIMEOUT:-60} \
     --keep-alive ${GUNICORN_KEEPALIVE:-2} \
     --max-requests ${WORKER_MAX_REQUESTS:-0} \

docker/pip-install.sh

@@ -38,14 +38,14 @@ for arg in "$@"; do
 done
 
 # Install build-essential if required
-if $REQUIRES_BUILD_ESSENTIAL; then
+if ${REQUIRES_BUILD_ESSENTIAL}; then
   echo "Installing build-essential for package builds..."
   apt-get update -qq \
     && apt-get install -yqq --no-install-recommends build-essential
 fi
 
 # Choose whether to use pip cache
-if $USE_CACHE; then
+if ${USE_CACHE}; then
   echo "Using pip cache..."
   uv pip install "${ARGS[@]}"
 else
@@ -54,7 +54,7 @@ else
 fi
 
 # Remove build-essential if it was installed
-if $REQUIRES_BUILD_ESSENTIAL; then
+if ${REQUIRES_BUILD_ESSENTIAL}; then
   echo "Removing build-essential to keep the image lean..."
   apt-get autoremove -yqq --purge build-essential \
     && apt-get clean \

docker/pythonpath_dev/superset_config.py

@@ -49,12 +49,18 @@ SQLALCHEMY_DATABASE_URI = (
     f"{DATABASE_HOST}:{DATABASE_PORT}/{DATABASE_DB}"
 )
 
-SQLALCHEMY_EXAMPLES_URI = (
-    f"{DATABASE_DIALECT}://"
-    f"{EXAMPLES_USER}:{EXAMPLES_PASSWORD}@"
-    f"{EXAMPLES_HOST}:{EXAMPLES_PORT}/{EXAMPLES_DB}"
+# Use environment variable if set, otherwise construct from components
+# This MUST take precedence over any other configuration
+SQLALCHEMY_EXAMPLES_URI = os.getenv(
+    "SUPERSET__SQLALCHEMY_EXAMPLES_URI",
+    (
+        f"{DATABASE_DIALECT}://"
+        f"{EXAMPLES_USER}:{EXAMPLES_PASSWORD}@"
+        f"{EXAMPLES_HOST}:{EXAMPLES_PORT}/{EXAMPLES_DB}"
+    ),
 )
 
+
 REDIS_HOST = os.getenv("REDIS_HOST", "redis")
 REDIS_PORT = os.getenv("REDIS_PORT", "6379")
 REDIS_CELERY_DB = os.getenv("REDIS_CELERY_DB", "0")
@@ -132,7 +138,7 @@ try:
     from superset_config_docker import *  # noqa: F403
 
     logger.info(
-        f"Loaded your Docker configuration at [{superset_config_docker.__file__}]"
+        "Loaded your Docker configuration at [%s]", superset_config_docker.__file__
     )
 except ImportError:
     logger.info("Using default Docker config...")

docker/pythonpath_dev/superset_test_config_light.py

@@ -0,0 +1,55 @@
+# 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.
+#
+# Test configuration for docker-compose-light.yml - uses SimpleCache instead of Redis
+
+# Import all settings from the main test config first
+import os
+import sys
+
+# Add the tests directory to the path to import the test config
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
+from tests.integration_tests.superset_test_config import *  # noqa: F403
+
+# Override Redis-based caching to use simple in-memory cache
+CACHE_CONFIG = {
+    "CACHE_TYPE": "SimpleCache",
+    "CACHE_DEFAULT_TIMEOUT": 300,
+    "CACHE_KEY_PREFIX": "superset_test_",
+}
+
+DATA_CACHE_CONFIG = {
+    **CACHE_CONFIG,
+    "CACHE_DEFAULT_TIMEOUT": 30,
+    "CACHE_KEY_PREFIX": "superset_test_data_",
+}
+
+# Keep SimpleCache for these as they're already using it
+# FILTER_STATE_CACHE_CONFIG - already SimpleCache in parent
+# EXPLORE_FORM_DATA_CACHE_CONFIG - already SimpleCache in parent
+
+# Disable Celery for lightweight testing
+CELERY_CONFIG = None
+
+# Use FileSystemCache for SQL Lab results instead of Redis
+from flask_caching.backends.filesystemcache import FileSystemCache  # noqa: E402
+
+RESULTS_BACKEND = FileSystemCache("/app/superset_home/sqllab_test")
+
+# Override WEBDRIVER_BASEURL for tests to match expected values
+WEBDRIVER_BASEURL = "http://0.0.0.0:8080/"
+WEBDRIVER_BASEURL_USER_FRIENDLY = WEBDRIVER_BASEURL

docker/tag_latest_release.sh

@@ -0,0 +1,190 @@
+#! /bin/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
+# 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.
+
+run_git_tag () {
+  if [[ "$DRY_RUN" == "false" ]] && [[ "$SKIP_TAG" == "false" ]]
+  then
+    git tag -a -f latest "${GITHUB_TAG_NAME}" -m "latest tag"
+    echo "${GITHUB_TAG_NAME} has been tagged 'latest'"
+  fi
+  exit 0
+}
+
+###
+# separating out git commands into functions so they can be mocked in unit tests
+###
+git_show_ref () {
+  if [[ "$TEST_ENV" == "true" ]]
+  then
+    if [[ "$GITHUB_TAG_NAME" == "does_not_exist" ]]
+        # mock return for testing only
+    then
+      echo ""
+    else
+      echo "2817aebd69dc7d199ec45d973a2079f35e5658b6 refs/tags/${GITHUB_TAG_NAME}"
+    fi
+  fi
+  result=$(git show-ref "${GITHUB_TAG_NAME}")
+  echo "${result}"
+}
+
+get_latest_tag_list () {
+  if [[ "$TEST_ENV" == "true" ]]
+  then
+    echo "(tag: 2.1.0, apache/2.1test)"
+  else
+    result=$(git show-ref --tags --dereference latest | awk '{print $2}' | xargs git show --pretty=tformat:%d -s | grep tag:)
+    echo "${result}"
+  fi
+}
+###
+
+split_string () {
+  local version="$1"
+  local delimiter="$2"
+  local components=()
+  local tmp=""
+  for (( i=0; i<${#version}; i++ )); do
+    local char="${version:$i:1}"
+    if [[ "$char" != "$delimiter" ]]; then
+      tmp="$tmp$char"
+    elif [[ -n "$tmp" ]]; then
+      components+=("$tmp")
+      tmp=""
+    fi
+  done
+  if [[ -n "$tmp" ]]; then
+    components+=("$tmp")
+  fi
+  echo "${components[@]}"
+}
+
+DRY_RUN=false
+
+# get params passed in with script when it was run
+# --dry-run is optional and returns the value of SKIP_TAG, but does not run the git tag statement
+# A tag name is required as a param. A SHA won't work. You must first tag a sha with a release number
+# and then run this script
+while [[ $# -gt 0 ]]
+do
+key="$1"
+
+case $key in
+    --dry-run)
+    DRY_RUN=true
+    shift # past value
+    ;;
+    *)    # this should be the tag name
+    GITHUB_TAG_NAME=$key
+    shift # past value
+    ;;
+esac
+done
+
+if [ -z "${GITHUB_TAG_NAME}" ]; then
+    echo "Missing tag parameter, usage: ./scripts/tag_latest_release.sh <GITHUB_TAG_NAME>"
+    echo "SKIP_TAG=true" >> $GITHUB_OUTPUT
+    exit 1
+fi
+
+if [ -z "$(git_show_ref)" ]; then
+    echo "The tag ${GITHUB_TAG_NAME} does not exist. Please use a different tag."
+    echo "SKIP_TAG=true" >> $GITHUB_OUTPUT
+    exit 0
+fi
+
+# check that this tag only contains a proper semantic version
+if ! [[ ${GITHUB_TAG_NAME} =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]
+then
+  echo "This tag ${GITHUB_TAG_NAME} is not a valid release version. Not tagging."
+  echo "SKIP_TAG=true" >> $GITHUB_OUTPUT
+  exit 1
+fi
+
+## split the current GITHUB_TAG_NAME into an array at the dot
+THIS_TAG_NAME=$(split_string "${GITHUB_TAG_NAME}" ".")
+
+# look up the 'latest' tag on git
+LATEST_TAG_LIST=$(get_latest_tag_list) || echo 'not found'
+
+# if 'latest' tag doesn't exist, then set this commit to latest
+if [[ -z "$LATEST_TAG_LIST" ]]
+then
+  echo "there are no latest tags yet, so I'm going to start by tagging this sha as the latest"
+  run_git_tag
+  exit 0
+fi
+
+# remove parenthesis and tag: from the list of tags
+LATEST_TAGS_STRINGS=$(echo "$LATEST_TAG_LIST" | sed 's/tag: \([^,]*\)/\1/g' | tr -d '()')
+
+LATEST_TAGS=$(split_string "$LATEST_TAGS_STRINGS" ",")
+TAGS=($(split_string "$LATEST_TAGS" " "))
+
+# Initialize a flag for comparison result
+compare_result=""
+
+# Iterate through the tags of the latest release
+for tag in $TAGS
+do
+  if [[ $tag == "latest" ]]; then
+    continue
+  else
+    ## extract just the version from this tag
+    LATEST_RELEASE_TAG="$tag"
+    echo "LATEST_RELEASE_TAG: ${LATEST_RELEASE_TAG}"
+
+    # check that this only contains a proper semantic version
+    if ! [[ ${LATEST_RELEASE_TAG} =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]
+    then
+      echo "'Latest' has been associated with tag ${LATEST_RELEASE_TAG} which is not a valid release version. Looking for another."
+      continue
+    fi
+    echo "The current release with the latest tag is version ${LATEST_RELEASE_TAG}"
+    # Split the version strings into arrays
+    THIS_TAG_NAME_ARRAY=($(split_string "$THIS_TAG_NAME" "."))
+    LATEST_RELEASE_TAG_ARRAY=($(split_string "$LATEST_RELEASE_TAG" "."))
+
+    # Iterate through the components of the version strings
+    for (( j=0; j<${#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
+            compare_result="greater"
+            break
+        elif [[ $((THIS_TAG_NAME_ARRAY[$j])) < $((LATEST_RELEASE_TAG_ARRAY[$j])) ]]; then
+            compare_result="lesser"
+            break
+        fi
+    done
+  fi
+done
+
+# Determine the result based on the comparison
+if [[ -z "$compare_result" ]]; then
+    echo "Versions are equal"
+    echo "SKIP_TAG=true" >> $GITHUB_OUTPUT
+elif [[ "$compare_result" == "greater" ]]; then
+    echo "This release tag ${GITHUB_TAG_NAME} is newer than the latest."
+    echo "SKIP_TAG=false" >> $GITHUB_OUTPUT
+    # Add other actions you want to perform for a newer version
+elif [[ "$compare_result" == "lesser" ]]; then
+    echo "This release tag ${GITHUB_TAG_NAME} is older than the latest."
+    echo "This release tag ${GITHUB_TAG_NAME} is not the latest. Not tagging."
+    # if you've gotten this far, then we don't want to run any tags in the next step
+    echo "SKIP_TAG=true" >> $GITHUB_OUTPUT
+fi

docs/DOCS_CLAUDE.md

@@ -0,0 +1,642 @@
+<!--
+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.
+-->
+
+# LLM Context Guide for Apache Superset Documentation
+
+This guide helps LLMs work with the Apache Superset documentation site built with Docusaurus 3.
+
+## 📍 Current Directory Context
+
+You are currently in the `/docs` subdirectory of the Apache Superset repository. When referencing files from the main codebase, use `../` to access the parent directory.
+
+```
+/Users/evan_1/GitHub/superset/     # Main repository root
+├── superset/                      # Python backend code
+├── superset-frontend/             # React/TypeScript frontend
+└── docs/                         # Documentation site (YOU ARE HERE)
+    ├── docs/                     # Main documentation content
+    ├── developer_portal/         # Developer guides (currently disabled)
+    ├── components/               # Component playground (currently disabled)
+    └── docusaurus.config.ts      # Site configuration
+```
+
+## 🚀 Quick Commands
+
+```bash
+# Development
+yarn start                 # Start dev server on http://localhost:3000
+yarn stop                 # Stop running dev server
+yarn build                # Build production site
+yarn serve                # Serve built site locally
+
+# Version Management (USE THESE, NOT docusaurus commands)
+yarn version:add:docs <version>              # Add new docs version
+yarn version:add:developer_portal <version>  # Add developer portal version  
+yarn version:add:components <version>        # Add components version
+yarn version:remove:docs <version>           # Remove docs version
+yarn version:remove:developer_portal <version> # Remove developer portal version
+yarn version:remove:components <version>      # Remove components version
+
+# Quality Checks
+yarn typecheck            # TypeScript validation
+yarn eslint              # Lint TypeScript/JavaScript files
+```
+
+## 📁 Documentation Structure
+
+### Main Documentation (`/docs`)
+The primary documentation lives in `/docs` with this structure:
+
+```
+docs/
+├── intro.md                # Auto-generated from ../README.md
+├── quickstart.mdx          # Getting started guide
+├── api.mdx                 # API reference with Swagger UI
+├── faq.mdx                 # Frequently asked questions
+├── installation/           # Installation guides
+│   ├── installation-methods.mdx
+│   ├── docker-compose.mdx
+│   ├── docker-builds.mdx
+│   ├── kubernetes.mdx
+│   ├── pypi.mdx
+│   └── architecture.mdx
+├── configuration/          # Configuration guides
+│   ├── configuring-superset.mdx
+│   ├── alerts-reports.mdx
+│   ├── caching.mdx
+│   ├── databases.mdx
+│   └── [more config docs]
+├── using-superset/         # User guides
+│   ├── creating-your-first-dashboard.md
+│   ├── exploring-data.mdx
+│   └── [more user docs]
+├── contributing/           # Contributor guides
+│   ├── development.mdx
+│   ├── testing-locally.mdx
+│   └── [more contributor docs]
+└── security/              # Security documentation
+    ├── security.mdx
+    └── [security guides]
+```
+
+### Developer Portal (`/developer_portal`) - Currently Disabled
+When enabled, contains developer-focused content:
+- API documentation
+- Architecture guides
+- CLI tools
+- Code examples
+
+### Component Playground (`/components`) - Currently Disabled
+When enabled, provides 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
+---
+```
+
+### MDX Component Usage
+MDX files can import and use React components:
+
+```mdx
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
+<Tabs>
+  <TabItem value="npm" label="npm" default>
+    ```bash
+    npm install superset
+    ```
+  </TabItem>
+  <TabItem value="yarn" label="yarn">
+    ```bash
+    yarn add superset
+    ```
+  </TabItem>
+</Tabs>
+```
+
+### Code Blocks
+Use triple backticks with language identifiers:
+
+````markdown
+```python
+def hello_world():
+    print("Hello, Superset!")
+```
+
+```sql title="Example Query"
+SELECT * FROM users WHERE active = true;
+```
+
+```bash
+# Installation command
+pip install apache-superset
+```
+````
+
+### Admonitions
+Docusaurus supports various admonition types:
+
+```markdown
+:::note
+This is a note
+:::
+
+:::tip
+This is a tip
+:::
+
+:::warning
+This is a warning
+:::
+
+:::danger
+This is a danger warning
+:::
+
+:::info
+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
+    "onlyIncludeVersions": ["current", "6.0.0"],
+    "versions": {
+      "current": {
+        "label": "Next",
+        "path": "",
+        "banner": "unreleased"     // Shows warning banner
+      },
+      "6.0.0": {
+        "label": "6.0.0",
+        "path": "6.0.0",
+        "banner": "none"
+      }
+    }
+  }
+}
+```
+
+### Creating New Versions
+**IMPORTANT**: Always use the custom scripts, NOT native Docusaurus commands:
+
+```bash
+# ✅ CORRECT - Updates both Docusaurus and versions-config.json
+yarn version:add:docs 6.1.0
+
+# ❌ WRONG - Only updates Docusaurus, breaks version dropdown
+yarn docusaurus docs:version 6.1.0
+```
+
+### Version Files Created
+When versioning, these files are created:
+- `versioned_docs/version-X.X.X/` - Snapshot of current docs
+- `versioned_sidebars/version-X.X.X-sidebars.json` - Sidebar config
+- `versions.json` - List of all versions
+
+## 🎨 Styling and Theming
+
+### Custom CSS
+Add custom styles in `/src/css/custom.css`:
+
+```css
+:root {
+  --ifm-color-primary: #20a7c9;
+  --ifm-code-font-size: 95%;
+}
+```
+
+### Custom Components
+Create React components in `/src/components/`:
+
+```tsx
+// src/components/FeatureCard.tsx
+import React from 'react';
+
+export default function FeatureCard({title, description}) {
+  return (
+    <div className="card">
+      <h3>{title}</h3>
+      <p>{description}</p>
+    </div>
+  );
+}
+```
+
+Use in MDX:
+
+```mdx
+import FeatureCard from '@site/src/components/FeatureCard';
+
+<FeatureCard
+  title="Fast"
+  description="Lightning fast queries"
+/>
+```
+
+## 📦 Key Dependencies
+
+- **Docusaurus 3.8.1**: Static site generator
+- **React 18.3**: UI framework
+- **Ant Design 5.26**: Component library
+- **@superset-ui/core**: Superset UI components
+- **Swagger UI React**: API documentation
+- **Prism**: Syntax highlighting
+
+## 🔗 Linking Strategies
+
+### Internal Links
+Use relative paths for internal documentation:
+
+```markdown
+[Installation Guide](./installation/docker-compose)
+[Configuration](../configuration/configuring-superset)
+```
+
+### External Links
+Always use full URLs:
+
+```markdown
+[Apache Superset GitHub](https://github.com/apache/superset)
+```
+
+### Linking to Code
+Reference code in the main repository:
+
+```markdown
+See the [main configuration file](https://github.com/apache/superset/blob/master/superset/config.py)
+```
+
+## 🛠️ 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";
+
+<SwaggerUI url="/api/v1/openapi.json" />
+```
+
+### Adding Interactive Examples
+Use MDX to create interactive documentation:
+
+```mdx
+import CodeBlock from '@theme/CodeBlock';
+import MyComponentExample from '!!raw-loader!../examples/MyComponent.tsx';
+
+<CodeBlock language="tsx">{MyComponentExample}</CodeBlock>
+```
+
+## 📋 Documentation Checklist
+
+When creating or updating documentation:
+
+- [ ] Clear, descriptive title in frontmatter
+- [ ] Description for SEO in frontmatter
+- [ ] Proper heading hierarchy (h1 -> h2 -> h3)
+- [ ] Code examples with language identifiers
+- [ ] Links verified (internal and external)
+- [ ] Images have alt text
+- [ ] Admonitions used for important notes
+- [ ] Tested locally with `yarn start`
+- [ ] No broken links (check with `yarn build`)
+
+## 🔍 Searching and Navigation
+
+### Sidebar Configuration
+Sidebars are configured in `/sidebars.js`:
+
+```javascript
+module.exports = {
+  CustomSidebar: [
+    {
+      type: 'doc',
+      label: 'Introduction',
+      id: 'intro',
+    },
+    {
+      type: 'category',
+      label: 'Installation',
+      items: [
+        {
+          type: 'autogenerated',
+          dirName: 'installation',
+        },
+      ],
+    },
+  ],
+};
+```
+
+### Search
+Docusaurus includes Algolia DocSearch integration configured in `docusaurus.config.ts`.
+
+## 🚫 Common Pitfalls to Avoid
+
+1. **Never use `yarn docusaurus docs:version`** - Use `yarn version:add:docs` instead
+2. **Don't edit versioned docs directly** - Edit current docs and create new version
+3. **Avoid absolute paths in links** - Use relative paths for maintainability
+4. **Don't forget frontmatter** - Every doc needs title and description
+5. **Test builds locally** - Run `yarn build` before committing
+
+## 🔧 Troubleshooting
+
+### Dev Server Issues
+```bash
+yarn stop     # Kill any running servers
+yarn clear    # Clear cache
+yarn start    # Restart
+```
+
+### Build Failures
+```bash
+# Check for broken links
+yarn build
+
+# TypeScript issues
+yarn typecheck
+
+# Linting issues
+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 `versioned_docs/`
+3. Restart dev server
+
+## 📚 Resources
+
+- [Docusaurus Documentation](https://docusaurus.io/docs)
+- [MDX Documentation](https://mdxjs.com/)
+- [Superset Contributing Guide](../CONTRIBUTING.md)
+- [Main Superset Documentation](https://superset.apache.org/docs/intro)
+
+## 📖 Real Examples and Patterns
+
+### Example: Configuration Documentation Pattern
+From `docs/configuration/configuring-superset.mdx`:
+
+```mdx
+---
+title: Configuring Superset
+hide_title: true
+sidebar_position: 1
+version: 1
+---
+
+# Configuring Superset
+
+## superset_config.py
+
+Superset exposes hundreds of configurable parameters through its
+[config.py module](https://github.com/apache/superset/blob/master/superset/config.py).
+
+```bash
+export SUPERSET_CONFIG_PATH=/app/superset_config.py
+```
+```
+
+**Key patterns:**
+- Links to source code for reference
+- Code blocks with bash/python examples
+- Environment variable documentation
+- Step-by-step configuration instructions
+
+### Example: Tutorial Documentation Pattern
+From `docs/using-superset/creating-your-first-dashboard.mdx`:
+
+```mdx
+import useBaseUrl from "@docusaurus/useBaseUrl";
+
+## Creating Your First Dashboard
+
+:::tip
+In addition to this site, [Preset.io](http://preset.io/) maintains an updated set of end-user
+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
+- Clear section hierarchy with ### subheadings
+- 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";
+
+## API Documentation
+
+<SwaggerUI url="/api/v1/openapi.json" />
+```
+
+**Key patterns:**
+- Embedding interactive Swagger UI
+- Importing necessary CSS
+- Direct API spec integration
+
+### Common Image Patterns
+
+```mdx
+// For images in static folder
+import useBaseUrl from "@docusaurus/useBaseUrl";
+
+<img src={useBaseUrl("/img/feature-screenshot.png")} width="600" />
+
+// With caption
+<figure>
+  <img src={useBaseUrl("/img/dashboard.png")} alt="Dashboard view" />
+  <figcaption>Superset Dashboard Interface</figcaption>
+</figure>
+```
+
+### Multi-Tab Code Examples
+
+```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>
+</Tabs>
+```
+
+### Configuration File Examples
+
+```mdx
+```python title="superset_config.py"
+# Database connection example
+SQLALCHEMY_DATABASE_URI = 'postgresql://user:password@localhost/superset'
+
+# Security configuration
+SECRET_KEY = 'YOUR_SECRET_KEY_HERE'
+WTF_CSRF_ENABLED = True
+
+# Feature flags
+FEATURE_FLAGS = {
+    'ENABLE_TEMPLATE_PROCESSING': True,
+    'DASHBOARD_NATIVE_FILTERS': True,
+}
+```
+```
+
+### Cross-Referencing Pattern
+
+```mdx
+For detailed configuration options, see:
+- [Configuring Superset](./configuration/configuring-superset)
+- [Database Connections](./configuration/databases)
+- [Security Settings](./security/security)
+
+External resources:
+- [SQLAlchemy Documentation](https://docs.sqlalchemy.org/)
+- [Flask Configuration](https://flask.palletsprojects.com/config/)
+```
+
+### Writing Installation Guides
+
+```mdx
+## Prerequisites
+
+:::warning
+Ensure you have Python 3.9+ and Node.js 16+ installed before proceeding.
+:::
+
+## Installation Steps
+
+1. **Clone the repository**
+   ```bash
+   git clone https://github.com/apache/superset.git
+   cd superset
+   ```
+
+2. **Install Python dependencies**
+   ```bash
+   pip install -e .
+   ```
+
+3. **Initialize the database**
+   ```bash
+   superset db upgrade
+   superset init
+   ```
+
+:::tip Success Check
+Navigate to http://localhost:8088 and login with admin/admin
+:::
+```
+
+### Documenting API Endpoints
+
+```mdx
+## Chart API
+
+### GET /api/v1/chart/
+
+Returns a list of charts.
+
+**Parameters:**
+- `page` (optional): Page number
+- `page_size` (optional): Number of items per page
+
+**Example Request:**
+```bash
+curl -X GET "http://localhost:8088/api/v1/chart/" \
+  -H "Authorization: Bearer YOUR_ACCESS_TOKEN"
+```
+
+**Example Response:**
+```json
+{
+  "count": 42,
+  "result": [
+    {
+      "id": 1,
+      "slice_name": "Sales Dashboard",
+      "viz_type": "line"
+    }
+  ]
+}
+```
+```
+
+---
+
+**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.

docs/README.md

@@ -21,3 +21,183 @@ This is the public documentation site for Superset, built using
 [Docusaurus 3](https://docusaurus.io/). See
 [CONTRIBUTING.md](../CONTRIBUTING.md#documentation) for documentation on
 contributing to documentation.
+
+## Version Management
+
+The Superset documentation site uses Docusaurus versioning with three independent versioned sections:
+
+- **Main Documentation** (`/docs/`) - Core Superset documentation
+- **Developer Portal** (`/developer_portal/`) - Developer guides and tutorials  
+- **Component Playground** (`/components/`) - Interactive component examples (currently disabled)
+
+Each section maintains its own version history and can be versioned independently.
+
+### Creating a New Version
+
+To create a new version for any section, use the Docusaurus version command with the appropriate plugin ID or use our automated scripts:
+
+#### Using Automated Scripts (Required)
+
+**⚠️ Important:** Always use these custom commands instead of the native Docusaurus commands. These scripts ensure that both the Docusaurus versioning system AND the `versions-config.json` file are updated correctly.
+
+```bash
+# Main Documentation
+yarn version:add:docs 1.2.0
+
+# Developer Portal
+yarn version:add:developer_portal 1.2.0
+
+# Component Playground (when enabled)
+yarn version:add:components 1.2.0
+```
+
+**Do NOT use** the native Docusaurus commands directly (`yarn docusaurus docs:version`), as they will:
+- ❌ Create version files but NOT update `versions-config.json`
+- ❌ Cause versions to not appear in dropdown menus
+- ❌ Require manual fixes to synchronize the configuration
+
+### 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):
+   - Add version to `onlyIncludeVersions` array
+   - Add version metadata to `versions` object
+   - Update `lastVersion` if needed
+
+2. **Files Created by Versioning**:
+   When a new version is created, Docusaurus generates:
+   - **Versioned docs folder**: `[section]_versioned_docs/version-X.X.X/`
+   - **Versioned sidebars**: `[section]_versioned_sidebars/version-X.X.X-sidebars.json`
+   - **Versions list**: `[section]_versions.json`
+
+   Note: For main docs, the prefix is omitted (e.g., `versioned_docs/` instead of `docs_versioned_docs/`)
+
+3. **Important**: After adding a version, restart the development server to see changes:
+   ```bash
+   yarn stop
+   yarn start
+   ```
+
+### Removing a Version
+
+#### Using Automated Scripts (Recommended)
+```bash
+# Main Documentation
+yarn version:remove:docs 1.0.0
+
+# Developer Portal
+yarn version:remove:developer_portal 1.0.0
+
+# Component Playground
+yarn version:remove:components 1.0.0
+```
+
+#### Manual Removal
+To manually remove a version:
+
+1. **Delete the version folder** from the appropriate location:
+   - Main docs: `versioned_docs/version-X.X.X/` (no prefix for main)
+   - Developer Portal: `developer_portal_versioned_docs/version-X.X.X/`
+   - Components: `components_versioned_docs/version-X.X.X/`
+
+2. **Delete the version metadata file**:
+   - Main docs: `versioned_sidebars/version-X.X.X-sidebars.json` (no prefix)
+   - Developer Portal: `developer_portal_versioned_sidebars/version-X.X.X-sidebars.json`
+   - Components: `components_versioned_sidebars/version-X.X.X-sidebars.json`
+
+3. **Update the versions list file**:
+   - Main docs: `versions.json`
+   - Developer Portal: `developer_portal_versions.json`
+   - Components: `components_versions.json`
+
+4. **Update configuration**:
+   - If using dynamic config: Update `versions-config.json`
+   - If using static config: Update `docusaurus.config.ts`
+
+5. **Restart the server** to see changes
+
+### Version Configuration Examples
+
+#### Main Documentation (default plugin)
+```typescript
+docs: {
+  includeCurrentVersion: true,
+  lastVersion: 'current',  // Makes /docs/ show Next version
+  onlyIncludeVersions: ['current', '1.1.0', '1.0.0'],
+  versions: {
+    current: {
+      label: 'Next',
+      path: '',  // Empty path for default routing
+      banner: 'unreleased',
+    },
+    '1.1.0': {
+      label: '1.1.0',
+      path: '1.1.0',
+      banner: 'none',
+    },
+  },
+}
+```
+
+#### Developer Portal & Components (custom plugins)
+```typescript
+{
+  id: 'developer_portal',
+  path: 'developer_portal',
+  routeBasePath: 'developer_portal',
+  includeCurrentVersion: true,
+  lastVersion: '1.1.0',  // Default version
+  onlyIncludeVersions: ['current', '1.1.0', '1.0.0'],
+  versions: {
+    current: {
+      label: 'Next',
+      path: 'next',
+      banner: 'unreleased',
+    },
+    '1.1.0': {
+      label: '1.1.0',
+      path: '1.1.0',
+      banner: 'none',
+    },
+  },
+}
+```
+
+### Best Practices
+
+1. **Version naming**: Use semantic versioning (e.g., 1.0.0, 1.1.0, 2.0.0)
+2. **Version banners**: Use `'unreleased'` for development versions, `'none'` for stable releases
+3. **Limit displayed versions**: Use `onlyIncludeVersions` to show only relevant versions
+4. **Test locally**: Always test version changes locally before deploying
+5. **Independent versioning**: Each section can have different version numbers and release cycles
+
+### Troubleshooting
+
+#### 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 versions.json && rm -rf versioned_docs/ versioned_sidebars/`
+   - Then use the correct command: `yarn version:add: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_portal 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

docs/components/chart-components/bar-chart.md

@@ -0,0 +1,105 @@
+<!--
+    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: Bar Chart
+sidebar_position: 1
+---
+
+# Bar Chart Component
+
+The Bar Chart component is used to visualize categorical data with rectangular bars.
+
+## Props
+
+| Prop | Type | Default | Description |
+|------|------|---------|-------------|
+| `data` | `array` | `[]` | Array of data objects to visualize |
+| `width` | `number` | `800` | Width of the chart in pixels |
+| `height` | `number` | `600` | Height of the chart in pixels |
+| `xField` | `string` | - | Field name for x-axis values |
+| `yField` | `string` | - | Field name for y-axis values |
+| `colorField` | `string` | - | Field name for color encoding |
+| `colorScheme` | `string` | `'supersetColors'` | Color scheme to use |
+| `showLegend` | `boolean` | `true` | Whether to show the legend |
+| `showGrid` | `boolean` | `true` | Whether to show grid lines |
+| `labelPosition` | `string` | `'top'` | Position of bar labels: 'top', 'middle', 'bottom' |
+
+## Examples
+
+### Basic Bar Chart
+
+```jsx
+import { BarChart } from '@superset-ui/chart-components';
+
+const data = [
+  { category: 'A', value: 10 },
+  { category: 'B', value: 20 },
+  { category: 'C', value: 15 },
+  { category: 'D', value: 25 },
+];
+
+function Example() {
+  return (
+    <BarChart
+      data={data}
+      width={800}
+      height={400}
+      xField="category"
+      yField="value"
+      colorScheme="supersetColors"
+    />
+  );
+}
+```
+
+### Grouped Bar Chart
+
+```jsx
+import { BarChart } from '@superset-ui/chart-components';
+
+const data = [
+  { category: 'A', group: 'Group 1', value: 10 },
+  { category: 'A', group: 'Group 2', value: 15 },
+  { category: 'B', group: 'Group 1', value: 20 },
+  { category: 'B', group: 'Group 2', value: 25 },
+  { category: 'C', group: 'Group 1', value: 15 },
+  { category: 'C', group: 'Group 2', value: 10 },
+];
+
+function Example() {
+  return (
+    <BarChart
+      data={data}
+      width={800}
+      height={400}
+      xField="category"
+      yField="value"
+      colorField="group"
+      colorScheme="supersetColors"
+    />
+  );
+}
+```
+
+## Best Practices
+
+- Use bar charts when comparing quantities across categories
+- Sort bars by value for better readability, unless there's a natural order to the categories
+- Use consistent colors for the same categories across different charts
+- Consider using horizontal bar charts when category labels are long

docs/components/index.md

@@ -0,0 +1,59 @@
+<!--
+    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: Component Library
+sidebar_position: 1
+---
+
+# Superset Component Library
+
+Welcome to the Apache Superset Component Library documentation. This section provides comprehensive documentation for all the UI components, chart components, and layout components used in Superset.
+
+## What is the Component Library?
+
+The Component Library is a collection of reusable UI components that are used to build the Superset user interface. These components are designed to be consistent, accessible, and easy to use.
+
+## Component Categories
+
+The Component Library is organized into the following categories:
+
+### UI Components
+
+Basic UI components like buttons, inputs, dropdowns, and other form elements.
+
+### Chart Components
+
+Visualization components used to render different types of charts and graphs.
+
+### Layout Components
+
+Components used for page layout, such as containers, grids, and navigation elements.
+
+## Versioning
+
+The Component Library documentation follows its own versioning scheme, independent from the main Superset documentation. This allows us to update the component documentation as the components evolve, without affecting the main documentation.
+
+## Getting Started
+
+Browse the sidebar to explore the different components available in the library. Each component documentation includes:
+
+- Component description and purpose
+- Props and configuration options
+- Usage examples
+- Best practices

docs/components/layout-components/grid.md

@@ -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.
+-->
+---
+title: Grid
+sidebar_position: 1
+---
+
+# Grid Component
+
+The Grid component provides a flexible layout system for arranging content in rows and columns.
+
+## Props
+
+| Prop | Type | Default | Description |
+|------|------|---------|-------------|
+| `gutter` | `number` or `[number, number]` | `0` | Grid spacing between items, can be a single number or [horizontal, vertical] |
+| `columns` | `number` | `12` | Number of columns in the grid |
+| `justify` | `string` | `'start'` | Horizontal alignment: 'start', 'center', 'end', 'space-between', 'space-around' |
+| `align` | `string` | `'top'` | Vertical alignment: 'top', 'middle', 'bottom' |
+| `wrap` | `boolean` | `true` | Whether to wrap items when they overflow |
+
+### Row Props
+
+| Prop | Type | Default | Description |
+|------|------|---------|-------------|
+| `gutter` | `number` or `[number, number]` | `0` | Spacing between items in the row |
+| `justify` | `string` | `'start'` | Horizontal alignment for this row |
+| `align` | `string` | `'top'` | Vertical alignment for this row |
+
+### Col Props
+
+| Prop | Type | Default | Description |
+|------|------|---------|-------------|
+| `span` | `number` | - | Number of columns the grid item spans |
+| `offset` | `number` | `0` | Number of columns the grid item is offset |
+| `xs`, `sm`, `md`, `lg`, `xl` | `number` or `object` | - | Responsive props for different screen sizes |
+
+## Examples
+
+### Basic Grid
+
+```jsx
+import { Grid, Row, Col } from '@superset-ui/core';
+
+function Example() {
+  return (
+    <Grid>
+      <Row gutter={16}>
+        <Col span={8}>
+          <div>Column 1</div>
+        </Col>
+        <Col span={8}>
+          <div>Column 2</div>
+        </Col>
+        <Col span={8}>
+          <div>Column 3</div>
+        </Col>
+      </Row>
+    </Grid>
+  );
+}
+```
+
+### Responsive Grid
+
+```jsx
+import { Grid, Row, Col } from '@superset-ui/core';
+
+function Example() {
+  return (
+    <Grid>
+      <Row gutter={[16, 24]}>
+        <Col xs={24} sm={12} md={8} lg={6}>
+          <div>Responsive Column 1</div>
+        </Col>
+        <Col xs={24} sm={12} md={8} lg={6}>
+          <div>Responsive Column 2</div>
+        </Col>
+        <Col xs={24} sm={12} md={8} lg={6}>
+          <div>Responsive Column 3</div>
+        </Col>
+        <Col xs={24} sm={12} md={8} lg={6}>
+          <div>Responsive Column 4</div>
+        </Col>
+      </Row>
+    </Grid>
+  );
+}
+```
+
+## Best Practices
+
+- Use the Grid system for complex layouts that need to be responsive
+- Specify column widths for different screen sizes to ensure proper responsive behavior
+- Use gutters to create appropriate spacing between grid items
+- Keep the grid structure consistent throughout your application
+- Consider using the grid system for dashboard layouts to ensure consistent spacing and alignment

docs/components/test.mdx

@@ -0,0 +1,35 @@
+<!--
+    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: Test
+---
+
+import { StoryExample } from '../src/components/StorybookWrapper';
+
+# Test
+
+This is a test using our custom StorybookWrapper component.
+
+<StoryExample
+  component={() => (
+    <div style={{ padding: '10px', background: '#f0f0f0', borderRadius: '4px' }}>
+      This is a simple example component
+    </div>
+  )}
+/>

docs/components/ui-components/button.mdx

@@ -0,0 +1,146 @@
+<!--
+    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: Button Component
+sidebar_position: 1
+---
+
+import { StoryExample, StoryWithControls } from '../../src/components/StorybookWrapper';
+import { Button } from '../../../superset-frontend/packages/superset-ui-core/src/components/Button';
+
+# Button Component
+
+The Button component is a fundamental UI element used throughout Superset for user interactions.
+
+## Basic Usage
+
+The default button with primary styling:
+<StoryExample
+  component={() => (
+    <Button buttonStyle="primary" onClick={() => console.log('Clicked!')}>
+      Click Me
+    </Button>
+  )}
+/>
+
+## Interactive Example
+
+<StoryWithControls
+  component={({ buttonStyle, buttonSize, label, disabled }) => (
+    <Button
+      buttonStyle={buttonStyle}
+      buttonSize={buttonSize}
+      disabled={disabled}
+      onClick={() => console.log('Clicked!')}
+    >
+      {label}
+    </Button>
+  )}
+  props={{
+    buttonStyle: 'primary',
+    buttonSize: 'default',
+    label: 'Click Me',
+    disabled: false
+  }}
+  controls={[
+    {
+      name: 'buttonStyle',
+      label: 'Button Style',
+      type: 'select',
+      options: ['primary', 'secondary', 'tertiary', 'success', 'warning', 'danger', 'default', 'link', 'dashed']
+    },
+    {
+      name: 'buttonSize',
+      label: 'Button Size',
+      type: 'select',
+      options: ['default', 'small', 'xsmall']
+    },
+    {
+      name: 'label',
+      label: 'Button Text',
+      type: 'text'
+    },
+    {
+      name: 'disabled',
+      label: 'Disabled',
+      type: 'boolean'
+    }
+  ]}
+/>
+
+## Props
+
+| Prop | Type | Default | Description |
+|------|------|---------|-------------|
+| `buttonStyle` | `'primary' \| 'secondary' \| 'tertiary' \| 'success' \| 'warning' \| 'danger' \| 'default' \| 'link' \| 'dashed'` | `'default'` | Button style |
+| `buttonSize` | `'default' \| 'small' \| 'xsmall'` | `'default'` | Button size |
+| `disabled` | `boolean` | `false` | Whether the button is disabled |
+| `cta` | `boolean` | `false` | Whether the button is a call-to-action button |
+| `tooltip` | `ReactNode` | - | Tooltip content |
+| `placement` | `TooltipProps['placement']` | - | Tooltip placement |
+| `onClick` | `function` | - | Callback when button is clicked |
+| `href` | `string` | - | Turns button into an anchor link |
+| `target` | `string` | - | Target attribute for anchor links |
+
+## Usage
+
+```jsx
+import Button from 'src/components/Button';
+
+function MyComponent() {
+  return (
+    <Button
+      buttonStyle="primary"
+      onClick={() => console.log('Button clicked')}
+    >
+      Click Me
+    </Button>
+  );
+}
+```
+
+## Button Styles
+
+Superset provides a variety of button styles for different purposes:
+
+- **Primary**: Used for primary actions
+- **Secondary**: Used for secondary actions
+- **Tertiary**: Used for less important actions
+- **Success**: Used for successful or confirming actions
+- **Warning**: Used for actions that require caution
+- **Danger**: Used for destructive actions
+- **Link**: Used for navigation
+- **Dashed**: Used for adding new items or features
+
+## Button Sizes
+
+Buttons come in three sizes:
+
+- **Default**: Standard size for most use cases
+- **Small**: Compact size for tight spaces
+- **XSmall**: Extra small size for very limited spaces
+
+## Best Practices
+
+- Use primary buttons for the main action in a form or page
+- Use secondary buttons for alternative actions
+- Use danger buttons for destructive actions
+- Limit the number of primary buttons on a page to avoid confusion
+- Use consistent button styles throughout your application
+- Add tooltips to buttons when their purpose might not be immediately clear

docs/components/versions.json

@@ -0,0 +1 @@
+[]

docs/components_versions.json

@@ -0,0 +1 @@
+[]

docs/developer_portal/api/frontend.md

@@ -0,0 +1,772 @@
+---
+title: Frontend API Reference
+sidebar_position: 1
+---
+
+<!--
+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.
+-->
+
+# Frontend Extension API Reference
+
+The `@apache-superset/core` package provides comprehensive APIs for frontend extensions to interact with Apache Superset. All APIs are versioned and follow semantic versioning principles.
+
+## Core APIs
+
+### Extension Context
+
+Every extension receives a context object during activation that provides access to the extension system.
+
+```typescript
+interface ExtensionContext {
+  // Unique extension identifier
+  extensionId: string;
+
+  // Extension metadata
+  extensionPath: string;
+  extensionUri: Uri;
+
+  // Storage paths
+  globalStorageUri: Uri;
+  workspaceStorageUri: Uri;
+
+  // Subscription management
+  subscriptions: Disposable[];
+
+  // State management
+  globalState: Memento;
+  workspaceState: Memento;
+
+  // Extension-specific APIs
+  registerView(viewId: string, component: React.Component): Disposable;
+  registerCommand(commandId: string, handler: CommandHandler): Disposable;
+}
+```
+
+### Lifecycle Methods
+
+```typescript
+// Required: Called when extension is activated
+export function activate(context: ExtensionContext): void | Promise<void> {
+  console.log('Extension activated');
+}
+
+// Optional: Called when extension is deactivated
+export function deactivate(): void | Promise<void> {
+  console.log('Extension deactivated');
+}
+```
+
+## SQL Lab APIs
+
+The `sqlLab` namespace provides APIs specific to SQL Lab functionality.
+
+### Query Management
+
+```typescript
+// Get current query editor content
+sqlLab.getCurrentQuery(): string | undefined
+
+// Get active tab information
+sqlLab.getCurrentTab(): Tab | undefined
+
+// Get all open tabs
+sqlLab.getTabs(): Tab[]
+
+// Get available databases
+sqlLab.getDatabases(): Database[]
+
+// Get schemas for a database
+sqlLab.getSchemas(databaseId: number): Promise<Schema[]>
+
+// Get tables for a schema
+sqlLab.getTables(databaseId: number, schema: string): Promise<Table[]>
+
+// Insert text at cursor position
+sqlLab.insertText(text: string): void
+
+// Replace entire query
+sqlLab.replaceQuery(query: string): void
+
+// Execute current query
+sqlLab.executeQuery(): Promise<QueryResult>
+
+// Stop query execution
+sqlLab.stopQuery(queryId: string): Promise<void>
+```
+
+### Event Subscriptions
+
+```typescript
+// Query execution events
+sqlLab.onDidQueryRun(
+  listener: (event: QueryRunEvent) => void
+): Disposable
+
+sqlLab.onDidQueryComplete(
+  listener: (event: QueryCompleteEvent) => void
+): Disposable
+
+sqlLab.onDidQueryFail(
+  listener: (event: QueryFailEvent) => void
+): Disposable
+
+// Editor events
+sqlLab.onDidChangeEditorContent(
+  listener: (content: string) => void
+): Disposable
+
+sqlLab.onDidChangeActiveTab(
+  listener: (tab: Tab) => void
+): Disposable
+
+// Panel events
+sqlLab.onDidOpenPanel(
+  listener: (panel: Panel) => void
+): Disposable
+
+sqlLab.onDidClosePanel(
+  listener: (panel: Panel) => void
+): Disposable
+```
+
+### Types
+
+```typescript
+interface Tab {
+  id: string;
+  title: string;
+  query: string;
+  database: Database;
+  schema?: string;
+  isActive: boolean;
+  queryId?: string;
+  status?: 'pending' | 'running' | 'success' | 'error';
+}
+
+interface Database {
+  id: number;
+  name: string;
+  backend: string;
+  allows_subquery: boolean;
+  allows_ctas: boolean;
+  allows_cvas: boolean;
+}
+
+interface QueryResult {
+  queryId: string;
+  status: 'success' | 'error';
+  data?: any[];
+  columns?: Column[];
+  error?: string;
+  startTime: number;
+  endTime: number;
+  rows: number;
+}
+```
+
+## Commands API
+
+Register and execute commands within Superset.
+
+### Registration
+
+```typescript
+interface CommandHandler {
+  execute(...args: any[]): any | Promise<any>;
+  isEnabled?(): boolean;
+  isVisible?(): boolean;
+}
+
+// Register a command
+commands.registerCommand(
+  commandId: string,
+  handler: CommandHandler
+): Disposable
+
+// Register with metadata
+commands.registerCommand(
+  commandId: string,
+  metadata: CommandMetadata,
+  handler: (...args: any[]) => any
+): Disposable
+
+interface CommandMetadata {
+  title: string;
+  category?: string;
+  icon?: string;
+  enablement?: string;
+  when?: string;
+}
+```
+
+### Execution
+
+```typescript
+// Execute a command
+commands.executeCommand<T>(
+  commandId: string,
+  ...args: any[]
+): Promise<T>
+
+// Get all registered commands
+commands.getCommands(): Promise<string[]>
+
+// Check if command exists
+commands.hasCommand(commandId: string): boolean
+```
+
+### Built-in Commands
+
+```typescript
+// SQL Lab commands
+'sqllab.executeQuery'
+'sqllab.formatQuery'
+'sqllab.saveQuery'
+'sqllab.shareQuery'
+'sqllab.downloadResults'
+
+// Editor commands
+'editor.action.formatDocument'
+'editor.action.commentLine'
+'editor.action.findReferences'
+
+// Extension commands
+'extensions.installExtension'
+'extensions.uninstallExtension'
+'extensions.enableExtension'
+'extensions.disableExtension'
+```
+
+## UI Components
+
+Pre-built components from `@apache-superset/core` for consistent UI.
+
+### Basic Components
+
+```typescript
+import {
+  Button,
+  Input,
+  Select,
+  Checkbox,
+  Radio,
+  Switch,
+  Slider,
+  DatePicker,
+  TimePicker,
+  Tooltip,
+  Popover,
+  Modal,
+  Drawer,
+  Alert,
+  Message,
+  Notification,
+  Spin,
+  Progress
+} from '@apache-superset/core';
+```
+
+### Data Display
+
+```typescript
+import {
+  Table,
+  List,
+  Card,
+  Collapse,
+  Tabs,
+  Tag,
+  Badge,
+  Statistic,
+  Timeline,
+  Tree,
+  Empty,
+  Result
+} from '@apache-superset/core';
+```
+
+### Form Components
+
+```typescript
+import {
+  Form,
+  FormItem,
+  FormList,
+  InputNumber,
+  TextArea,
+  Upload,
+  Rate,
+  Cascader,
+  AutoComplete,
+  Mentions
+} from '@apache-superset/core';
+```
+
+## Authentication API
+
+Access authentication and user information.
+
+```typescript
+// Get current user
+authentication.getCurrentUser(): User | undefined
+
+interface User {
+  id: number;
+  username: string;
+  email: string;
+  firstName: string;
+  lastName: string;
+  roles: Role[];
+  isActive: boolean;
+  isAnonymous: boolean;
+}
+
+// Get CSRF token for API requests
+authentication.getCSRFToken(): Promise<string>
+
+// Check permissions
+authentication.hasPermission(
+  permission: string,
+  resource?: string
+): boolean
+
+// Get user preferences
+authentication.getPreferences(): UserPreferences
+
+// Update preferences
+authentication.setPreference(
+  key: string,
+  value: any
+): Promise<void>
+```
+
+## Storage API
+
+Persist data across sessions.
+
+### Global Storage
+
+```typescript
+// Shared across all workspaces
+const globalState = context.globalState;
+
+// Get value
+const value = globalState.get<T>(key: string): T | undefined
+
+// Set value
+await globalState.update(key: string, value: any): Promise<void>
+
+// Get all keys
+globalState.keys(): readonly string[]
+```
+
+### Workspace Storage
+
+```typescript
+// Specific to current workspace
+const workspaceState = context.workspaceState;
+
+// Same API as globalState
+workspaceState.get<T>(key: string): T | undefined
+workspaceState.update(key: string, value: any): Promise<void>
+workspaceState.keys(): readonly string[]
+```
+
+### Secrets Storage
+
+```typescript
+// Secure storage for sensitive data
+secrets.store(key: string, value: string): Promise<void>
+secrets.get(key: string): Promise<string | undefined>
+secrets.delete(key: string): Promise<void>
+```
+
+## Events API
+
+Subscribe to and emit custom events.
+
+```typescript
+// Create an event emitter
+const onDidChange = new EventEmitter<ChangeEvent>();
+
+// Expose as event
+export const onChange = onDidChange.event;
+
+// Fire event
+onDidChange.fire({
+  type: 'update',
+  data: newData
+});
+
+// Subscribe to event
+const disposable = onChange((event) => {
+  console.log('Changed:', event);
+});
+
+// Cleanup
+disposable.dispose();
+```
+
+## Window API
+
+Interact with the UI window.
+
+### Notifications
+
+```typescript
+// Show info message
+window.showInformationMessage(
+  message: string,
+  ...items: string[]
+): Promise<string | undefined>
+
+// Show warning
+window.showWarningMessage(
+  message: string,
+  ...items: string[]
+): Promise<string | undefined>
+
+// Show error
+window.showErrorMessage(
+  message: string,
+  ...items: string[]
+): Promise<string | undefined>
+
+// Show with options
+window.showInformationMessage(
+  message: string,
+  options: MessageOptions,
+  ...items: MessageItem[]
+): Promise<MessageItem | undefined>
+
+interface MessageOptions {
+  modal?: boolean;
+  detail?: string;
+}
+```
+
+### Input Dialogs
+
+```typescript
+// Show input box
+window.showInputBox(
+  options?: InputBoxOptions
+): Promise<string | undefined>
+
+interface InputBoxOptions {
+  title?: string;
+  prompt?: string;
+  placeHolder?: string;
+  value?: string;
+  password?: boolean;
+  validateInput?(value: string): string | null;
+}
+
+// Show quick pick
+window.showQuickPick(
+  items: string[] | QuickPickItem[],
+  options?: QuickPickOptions
+): Promise<string | QuickPickItem | undefined>
+
+interface QuickPickOptions {
+  title?: string;
+  placeHolder?: string;
+  canPickMany?: boolean;
+  matchOnDescription?: boolean;
+  matchOnDetail?: boolean;
+}
+```
+
+### Progress
+
+```typescript
+// Show progress
+window.withProgress<T>(
+  options: ProgressOptions,
+  task: (progress: Progress<{message?: string}>) => Promise<T>
+): Promise<T>
+
+interface ProgressOptions {
+  location: ProgressLocation;
+  title?: string;
+  cancellable?: boolean;
+}
+
+// Example usage
+await window.withProgress(
+  {
+    location: ProgressLocation.Notification,
+    title: "Processing",
+    cancellable: true
+  },
+  async (progress) => {
+    progress.report({ message: 'Step 1...' });
+    await step1();
+    progress.report({ message: 'Step 2...' });
+    await step2();
+  }
+);
+```
+
+## Workspace API
+
+Access workspace information and configuration.
+
+```typescript
+// Get workspace folders
+workspace.workspaceFolders: readonly WorkspaceFolder[]
+
+// Get configuration
+workspace.getConfiguration(
+  section?: string
+): WorkspaceConfiguration
+
+// Update configuration
+workspace.getConfiguration('myExtension')
+  .update('setting', value, ConfigurationTarget.Workspace)
+
+// Watch for configuration changes
+workspace.onDidChangeConfiguration(
+  listener: (e: ConfigurationChangeEvent) => void
+): Disposable
+
+// File system operations
+workspace.fs.readFile(uri: Uri): Promise<Uint8Array>
+workspace.fs.writeFile(uri: Uri, content: Uint8Array): Promise<void>
+workspace.fs.delete(uri: Uri): Promise<void>
+workspace.fs.rename(oldUri: Uri, newUri: Uri): Promise<void>
+workspace.fs.copy(source: Uri, destination: Uri): Promise<void>
+workspace.fs.createDirectory(uri: Uri): Promise<void>
+workspace.fs.readDirectory(uri: Uri): Promise<[string, FileType][]>
+workspace.fs.stat(uri: Uri): Promise<FileStat>
+```
+
+## HTTP Client API
+
+Make HTTP requests from extensions.
+
+```typescript
+import { api } from '@apache-superset/core';
+
+// GET request
+const response = await api.get('/api/v1/chart/');
+
+// POST request
+const response = await api.post('/api/v1/chart/', {
+  data: chartData
+});
+
+// PUT request
+const response = await api.put('/api/v1/chart/123', {
+  data: updatedData
+});
+
+// DELETE request
+const response = await api.delete('/api/v1/chart/123');
+
+// Custom headers
+const response = await api.get('/api/v1/chart/', {
+  headers: {
+    'X-Custom-Header': 'value'
+  }
+});
+
+// Query parameters
+const response = await api.get('/api/v1/chart/', {
+  params: {
+    page: 1,
+    page_size: 20
+  }
+});
+```
+
+## Theming API
+
+Access and customize theme settings.
+
+```typescript
+// Get current theme
+theme.getActiveTheme(): Theme
+
+interface Theme {
+  name: string;
+  isDark: boolean;
+  colors: ThemeColors;
+  typography: Typography;
+  spacing: Spacing;
+}
+
+// Listen for theme changes
+theme.onDidChangeTheme(
+  listener: (theme: Theme) => void
+): Disposable
+
+// Get theme colors
+const colors = theme.colors;
+colors.primary
+colors.success
+colors.warning
+colors.error
+colors.info
+colors.text
+colors.background
+colors.border
+```
+
+## Disposable Pattern
+
+Manage resource cleanup consistently.
+
+```typescript
+interface Disposable {
+  dispose(): void;
+}
+
+// Create a disposable
+class MyDisposable implements Disposable {
+  dispose() {
+    // Cleanup logic
+  }
+}
+
+// Combine disposables
+const composite = Disposable.from(
+  disposable1,
+  disposable2,
+  disposable3
+);
+
+// Dispose all at once
+composite.dispose();
+
+// Use in extension
+export function activate(context: ExtensionContext) {
+  // All disposables added here are cleaned up on deactivation
+  context.subscriptions.push(
+    registerCommand(...),
+    registerView(...),
+    onDidChange(...)
+  );
+}
+```
+
+## Type Definitions
+
+Complete TypeScript definitions are available:
+
+```typescript
+import type {
+  ExtensionContext,
+  Disposable,
+  Event,
+  EventEmitter,
+  Uri,
+  Command,
+  QuickPickItem,
+  InputBoxOptions,
+  Progress,
+  CancellationToken
+} from '@apache-superset/core';
+```
+
+## Version Compatibility
+
+The API follows semantic versioning:
+
+```typescript
+// Check API version
+const version = superset.version;
+
+// Version components
+version.major // Breaking changes
+version.minor // New features
+version.patch // Bug fixes
+
+// Check minimum version
+if (version.major < 1) {
+  throw new Error('Requires Superset API v1.0.0 or higher');
+}
+```
+
+## Migration Guide
+
+### From v0.x to v1.0
+
+```typescript
+// Before (v0.x)
+sqlLab.runQuery(query);
+
+// After (v1.0)
+sqlLab.executeQuery();
+
+// Before (v0.x)
+core.registerPanel(id, component);
+
+// After (v1.0)
+context.registerView(id, component);
+```
+
+## Best Practices
+
+### Error Handling
+
+```typescript
+export async function activate(context: ExtensionContext) {
+  try {
+    await initializeExtension();
+  } catch (error) {
+    console.error('Failed to initialize:', error);
+    window.showErrorMessage(
+      `Extension failed to activate: ${error.message}`
+    );
+  }
+}
+```
+
+### Resource Management
+
+```typescript
+// Always use disposables
+const disposables: Disposable[] = [];
+
+disposables.push(
+  commands.registerCommand(...),
+  sqlLab.onDidQueryRun(...),
+  workspace.onDidChangeConfiguration(...)
+);
+
+// Cleanup in deactivate
+export function deactivate() {
+  disposables.forEach(d => d.dispose());
+}
+```
+
+### Type Safety
+
+```typescript
+// Use type guards
+function isDatabase(obj: any): obj is Database {
+  return obj && typeof obj.id === 'number' && typeof obj.name === 'string';
+}
+
+// Use generics
+function getValue<T>(key: string, defaultValue: T): T {
+  return context.globalState.get(key) ?? defaultValue;
+}
+```

docs/developer_portal/architecture/overview.md

@@ -0,0 +1,194 @@
+---
+title: Extension Architecture
+sidebar_position: 1
+---
+
+<!--
+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.
+-->
+
+# Superset Extension Architecture
+
+Apache Superset's extension architecture enables developers to enhance and customize the platform without modifying the core codebase. Inspired by the successful VS Code Extensions model, this architecture provides well-defined, versioned APIs and clear contribution points that allow the community to build upon and extend Superset's functionality.
+
+## Core Concepts
+
+### Extensions vs Plugins
+
+We use the term "extensions" rather than "plugins" to better convey the idea of enhancing and expanding Superset's core capabilities in a modular and integrated way. Extensions can add new features, modify existing behavior, and integrate deeply with the host application through well-defined APIs.
+
+### Lean Core Philosophy
+
+Superset's core remains minimal, with many features delegated to extensions. Built-in features are implemented using the same APIs available to external extension authors, ensuring consistency and validating the extension architecture through real-world usage.
+
+## Architecture Overview
+
+The extension architecture consists of several key components:
+
+### Core Packages
+
+#### @apache-superset/core (Frontend)
+Provides essential building blocks for extensions:
+- Shared UI components
+- Utility functions
+- Type definitions
+- Frontend APIs for interacting with the host
+
+#### apache-superset-core (Backend)
+Exposes backend functionality:
+- Database access APIs
+- Security models
+- REST API extensions
+- SQLAlchemy models and utilities
+
+### Extension CLI
+
+The `apache-superset-extensions-cli` package provides commands for:
+- Scaffolding new extension projects
+- Building and bundling extensions
+- Development workflows with hot-reload
+- Packaging extensions for distribution
+
+### Host Application
+
+Superset acts as the host, providing:
+- Extension registration and management
+- Dynamic loading of extension assets
+- API implementation for extensions
+- Lifecycle management (activation/deactivation)
+
+## Extension Points
+
+Extensions can contribute to various parts of Superset:
+
+### SQL Lab Extensions
+- Custom panels (left, right, bottom)
+- Editor enhancements
+- Query processors
+- Autocomplete providers
+- Execution plan visualizers
+
+### Dashboard Extensions (Future)
+- Custom widget types
+- Filter components
+- Interaction handlers
+
+### Chart Extensions (Future)
+- New visualization types
+- Data transformers
+- Export formats
+
+## Technical Foundation
+
+### Module Federation
+
+Frontend extensions leverage Webpack Module Federation for dynamic loading:
+- Extensions are built independently
+- Dependencies are shared with the host
+- No rebuild of Superset required
+- Runtime loading of extension assets
+
+### API Versioning
+
+All public APIs follow semantic versioning:
+- Breaking changes require major version bumps
+- Extensions declare compatibility requirements
+- Backward compatibility maintained within major versions
+
+### Security Model
+
+- Extensions disabled by default (require `ENABLE_EXTENSIONS` flag)
+- Built-in extensions follow same security standards as core
+- External extensions run in same context as host (sandboxing planned)
+- Administrators responsible for vetting third-party extensions
+
+## Development Workflow
+
+1. **Initialize**: Use CLI to scaffold new extension
+2. **Develop**: Work with hot-reload in development mode
+3. **Build**: Bundle frontend and backend assets
+4. **Package**: Create `.supx` distribution file
+5. **Deploy**: Upload through API or management UI
+
+## Example: Dataset References Extension
+
+A practical example demonstrating the architecture:
+
+```typescript
+// Frontend activation
+export function activate(context) {
+  // Register a new SQL Lab panel
+  const panel = core.registerView('dataset_references.main',
+    <DatasetReferencesPanel />
+  );
+
+  // Listen to query changes
+  const listener = sqlLab.onDidQueryRun(editor => {
+    // Analyze query and update panel
+  });
+
+  // Cleanup on deactivation
+  context.subscriptions.push(panel, listener);
+}
+```
+
+```python
+# Backend API extension
+from superset_core.api import rest_api
+from .api import DatasetReferencesAPI
+
+# Register custom REST endpoints
+rest_api.add_extension_api(DatasetReferencesAPI)
+```
+
+## Best Practices
+
+### Extension Design
+- Keep extensions focused on specific functionality
+- Use versioned APIs for stability
+- Handle cleanup properly on deactivation
+- Follow Superset's coding standards
+
+### Performance
+- Lazy load assets when possible
+- Minimize bundle sizes
+- Share dependencies with host
+- Cache expensive operations
+
+### Compatibility
+- Declare API version requirements
+- Test across Superset versions
+- Provide migration guides for breaking changes
+- Document compatibility clearly
+
+## Future Roadmap
+
+Planned enhancements include:
+- JavaScript sandboxing for untrusted extensions
+- Extension marketplace and registry
+- Inter-extension communication
+- Advanced theming capabilities
+- Backend hot-reload without restart
+
+## Getting Started
+
+Ready to build your first extension? Check out:
+- [Extension Project Structure](/developer_portal/extensions/extension-project-structure)
+- [API Reference](/developer_portal/api/frontend)
+- [CLI Documentation](/developer_portal/cli/overview)
+- [Frontend Contribution Types](/developer_portal/extensions/frontend-contribution-types)