diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index b65401ce7cb..9c3ed206289 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: ["current", "previous"]
+        python-version: ["current", "previous", "next"]
     steps:
       - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
         uses: actions/checkout@v4
diff --git a/.github/workflows/superset-python-integrationtest.yml b/.github/workflows/superset-python-integrationtest.yml
index cd19ecb64c7..03da74abbfd 100644
--- a/.github/workflows/superset-python-integrationtest.yml
+++ b/.github/workflows/superset-python-integrationtest.yml
@@ -77,7 +77,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: ["current", "previous"]
+        python-version: ["current", "previous", "next"]
     env:
       PYTHONPATH: ${{ github.workspace }}
       SUPERSET_CONFIG: tests.integration_tests.superset_test_config
diff --git a/.github/workflows/superset-python-unittest.yml b/.github/workflows/superset-python-unittest.yml
index a8feed453cd..208cf82421a 100644
--- a/.github/workflows/superset-python-unittest.yml
+++ b/.github/workflows/superset-python-unittest.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: ["previous", "current"]
+        python-version: ["previous", "current", "next"]
     env:
       PYTHONPATH: ${{ github.workspace }}
     steps:
diff --git a/pyproject.toml b/pyproject.toml
index c9ed5db5a83..b8cf768a22e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,6 +32,7 @@ authors = [
 classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
     "backoff>=1.8.0",
@@ -66,7 +67,7 @@ dependencies = [
     "markdown>=3.0",
     "msgpack>=1.0.0, <1.1",
     "nh3>=0.2.11, <0.3",
-    "numpy>1.23.5, <2",
+    "numpy>1.23.5, <2.3",
     "packaging",
     # --------------------------
     # pandas and related (wanting pandas[performance] without numba as it's 100+MB and not needed)
@@ -94,7 +95,8 @@ dependencies = [
     "sqlalchemy-utils>=0.38.3, <0.39",
     "sqlglot>=26.1.3, <27",
     "sqlparse>=0.5.0",
-    "tabulate>=0.8.9, <0.9",
+    # newer pandas needs 0.9+
+    "tabulate>=0.9.0, <1.0",
     "typing-extensions>=4, <5",
     "waitress; sys_platform == 'win32'",
     "wtforms>=2.3.3, <4",
diff --git a/requirements/base.in b/requirements/base.in
index f23e6ad1cad..e531ff644b2 100644
--- a/requirements/base.in
+++ b/requirements/base.in
@@ -33,3 +33,6 @@ apispec>=6.0.0,<6.7.0
 # https://marshmallow-sqlalchemy.readthedocs.io/en/latest/changelog.html#id3
 # Opened this issue https://github.com/marshmallow-code/marshmallow-sqlalchemy/issues/665
 marshmallow-sqlalchemy>=1.3.0,<1.4.1
+
+# needed for python 3.12 support
+openapi-schema-validator>=0.6.3
diff --git a/requirements/base.txt b/requirements/base.txt
index c887750e909..f9e20d836c7 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -11,9 +11,7 @@ apispec==6.6.1
 apsw==3.49.2.0
     # via shillelagh
 async-timeout==4.0.3
-    # via
-    #   -r requirements/base.in
-    #   redis
+    # via -r requirements/base.in
 attrs==25.3.0
     # via
     #   cattrs
@@ -99,11 +97,6 @@ email-validator==2.2.0
     # via flask-appbuilder
 et-xmlfile==2.0.0
     # via openpyxl
-exceptiongroup==1.3.0
-    # via
-    #   cattrs
-    #   trio
-    #   trio-websocket
 flask==2.3.3
     # via
     #   apache-superset (pyproject.toml)
@@ -189,9 +182,13 @@ jinja2==3.1.6
 jsonpath-ng==1.7.0
     # via apache-superset (pyproject.toml)
 jsonschema==4.23.0
-    # via flask-appbuilder
+    # via
+    #   flask-appbuilder
+    #   openapi-schema-validator
 jsonschema-specifications==2025.4.1
-    # via jsonschema
+    # via
+    #   jsonschema
+    #   openapi-schema-validator
 kombu==5.5.3
     # via celery
 korean-lunar-calendar==0.3.1
@@ -238,6 +235,8 @@ numpy==1.26.4
     #   pandas
 odfpy==1.4.1
     # via pandas
+openapi-schema-validator==0.6.3
+    # via -r requirements/base.in
 openpyxl==3.1.5
     # via pandas
 ordered-set==4.1.0
@@ -336,6 +335,8 @@ requests==2.32.3
     #   shillelagh
 requests-cache==1.2.1
     # via shillelagh
+rfc3339-validator==0.1.4
+    # via openapi-schema-validator
 rich==13.9.4
     # via flask-limiter
 rpds-py==0.25.0
@@ -354,6 +355,8 @@ six==1.17.0
     # via
     #   prison
     #   python-dateutil
+    #   rfc3339-validator
+    #   url-normalize
     #   wtforms-json
 slack-sdk==3.35.0
     # via apache-superset (pyproject.toml)
@@ -380,7 +383,7 @@ sqlparse==0.5.3
     # via apache-superset (pyproject.toml)
 sshtunnel==0.4.0
     # via apache-superset (pyproject.toml)
-tabulate==0.8.10
+tabulate==0.9.0
     # via apache-superset (pyproject.toml)
 trio==0.30.0
     # via
@@ -392,12 +395,9 @@ typing-extensions==4.13.2
     # via
     #   apache-superset (pyproject.toml)
     #   alembic
-    #   cattrs
-    #   exceptiongroup
     #   limits
     #   pyopenssl
     #   referencing
-    #   rich
     #   selenium
     #   shillelagh
 tzdata==2025.2
diff --git a/requirements/development.txt b/requirements/development.txt
index 770406029b2..4a715b2a6ff 100644
--- a/requirements/development.txt
+++ b/requirements/development.txt
@@ -18,10 +18,6 @@ apsw==3.49.2.0
     # via
     #   -c requirements/base.txt
     #   shillelagh
-async-timeout==4.0.3
-    # via
-    #   -c requirements/base.txt
-    #   redis
 attrs==25.3.0
     # via
     #   -c requirements/base.txt
@@ -176,13 +172,6 @@ et-xmlfile==2.0.0
     # via
     #   -c requirements/base.txt
     #   openpyxl
-exceptiongroup==1.3.0
-    # via
-    #   -c requirements/base.txt
-    #   cattrs
-    #   pytest
-    #   trio
-    #   trio-websocket
 filelock==3.12.2
     # via virtualenv
 flask==2.3.3
@@ -480,7 +469,9 @@ odfpy==1.4.1
     #   -c requirements/base.txt
     #   pandas
 openapi-schema-validator==0.6.3
-    # via openapi-spec-validator
+    # via
+    #   -c requirements/base.txt
+    #   openapi-spec-validator
 openapi-spec-validator==0.7.1
     # via apache-superset
 openpyxl==3.1.5
@@ -727,7 +718,9 @@ requests-cache==1.2.1
 requests-oauthlib==2.0.0
     # via google-auth-oauthlib
 rfc3339-validator==0.1.4
-    # via openapi-schema-validator
+    # via
+    #   -c requirements/base.txt
+    #   openapi-schema-validator
 rich==13.9.4
     # via
     #   -c requirements/base.txt
@@ -815,14 +808,10 @@ sshtunnel==0.4.0
     #   apache-superset
 statsd==4.0.1
     # via apache-superset
-tabulate==0.8.10
+tabulate==0.9.0
     # via
     #   -c requirements/base.txt
     #   apache-superset
-tomli==2.2.1
-    # via
-    #   coverage
-    #   pytest
 tqdm==4.67.1
     # via
     #   cmdstanpy
@@ -843,12 +832,9 @@ typing-extensions==4.13.2
     #   -c requirements/base.txt
     #   alembic
     #   apache-superset
-    #   cattrs
-    #   exceptiongroup
     #   limits
     #   pyopenssl
     #   referencing
-    #   rich
     #   selenium
     #   shillelagh
 tzdata==2025.2
diff --git a/superset/connectors/sqla/models.py b/superset/connectors/sqla/models.py
index 275cc0cdbf4..57952ef5ef7 100644
--- a/superset/connectors/sqla/models.py
+++ b/superset/connectors/sqla/models.py
@@ -794,7 +794,8 @@ class AnnotationDatasource(BaseDatasource):
             qry = qry.filter(Annotation.end_dttm <= query_obj["to_dttm"])
         status = QueryStatus.SUCCESS
         try:
-            df = pd.read_sql_query(qry.statement, db.engine)
+            with db.engine.connect() as con:
+                df = pd.read_sql_query(qry.statement, con)
         except Exception as ex:  # pylint: disable=broad-except
             df = pd.DataFrame()
             status = QueryStatus.FAILED
diff --git a/superset/models/helpers.py b/superset/models/helpers.py
index 341585e5da5..5647bc871bb 100644
--- a/superset/models/helpers.py
+++ b/superset/models/helpers.py
@@ -1375,10 +1375,11 @@ class ExploreMixin:  # pylint: disable=too-many-public-methods
             if engine.dialect.identifier_preparer._double_percents:
                 sql = sql.replace("%%", "%")
 
-            df = pd.read_sql_query(sql=self.text(sql), con=engine)
-            # replace NaN with None to ensure it can be serialized to JSON
-            df = df.replace({np.nan: None})
-            return df["column_values"].to_list()
+            with engine.connect() as con:
+                df = pd.read_sql_query(sql=self.text(sql), con=con)
+                # replace NaN with None to ensure it can be serialized to JSON
+                df = df.replace({np.nan: None})
+                return df["column_values"].to_list()
 
     def get_timestamp_expression(
         self,
diff --git a/tests/integration_tests/reports/commands_tests.py b/tests/integration_tests/reports/commands_tests.py
index d3798d05ec8..30a9d174c5b 100644
--- a/tests/integration_tests/reports/commands_tests.py
+++ b/tests/integration_tests/reports/commands_tests.py
@@ -1978,7 +1978,7 @@ def test_slack_token_callable_chart_report(
             TEST_ID, create_report_slack_chart.id, datetime.utcnow()
         ).run()
         app.config["SLACK_API_TOKEN"].assert_called()
-        assert slack_client_mock_class.called_with(token="cool_code", proxy="")  # noqa: S106
+        slack_client_mock_class.assert_called_with(token="cool_code", proxy=None)  # noqa: S106
         assert_log(ReportState.SUCCESS)
 
 
diff --git a/tests/unit_tests/models/helpers_test.py b/tests/unit_tests/models/helpers_test.py
index 4e8aa493be3..d0dfef43b86 100644
--- a/tests/unit_tests/models/helpers_test.py
+++ b/tests/unit_tests/models/helpers_test.py
@@ -209,4 +209,4 @@ def test_values_for_column_double_percents(
         called_conn = pd.read_sql_query.call_args.kwargs["con"]
 
         assert called_sql.compare(expected_sql) is True
-        assert called_conn == engine
+        assert called_conn.engine == engine