CI: Python 3.15.0rc1 builds

.github/actions/build-wheel/action.yml

@@ -104,9 +104,9 @@ runs:
         save: ${{ inputs.ccache-save }}
 
     # Install Astral UV, which will be used as build-frontend for cibuildwheel
-    - uses: astral-sh/setup-uv@v7
+    - uses: astral-sh/setup-uv@v10.0.1
       with:
-        version: "0.9.0"
+        version: "0.12.10"
         enable-cache: false
 
     ### cibuildwheel configuration
@@ -122,7 +122,7 @@ runs:
     #   traversing the full filesystem, which produces an error on Windows.
     # - CIBW_TEST_SKIP we always skip tests for *-macosx_universal2 builds, because we run tests for arm64 and x86_64.
     - name: Build${{ inputs.testsuite != 'none' && ' and test ' || ' ' }}wheel
-      uses: pypa/cibuildwheel@v4.2.0
+      uses: pypa/cibuildwheel@v4.2.1
       env:
         CIBW_ARCHS: ${{ inputs.arch == 'amd64' && 'AMD64' || inputs.arch }}
         CIBW_BUILD: ${{ inputs.python }}-${{ inputs.cibw-system }}_${{ inputs.arch }}

.github/workflows/cleanup_pypi.yml

@@ -70,9 +70,9 @@ jobs:
           exit 1
 
       - name: Install Astral UV
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v10.0.1
         with:
-          version: "0.9.0"
+          version: "0.12.10"
 
       - name: Install dependencies
         run: uv sync --only-group pypi --no-install-project

.github/workflows/code_quality.yml

@@ -29,9 +29,9 @@ jobs:
           persist-credentials: false
 
       - name: Install Astral UV
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v10.0.1
         with:
-          version: "0.9.0"
+          version: "0.12.10"
           python-version: "3.12"
 
       - name: pre-commit (cache)

.github/workflows/coverage.yml

@@ -68,9 +68,9 @@ jobs:
           sudo apt-get -y install ccache
 
       - name: Install Astral UV and enable the cache
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v10.0.1
         with:
-          version: "0.9.0"
+          version: "0.12.10"
           python-version: 3.12
           enable-cache: true
           cache-suffix: -${{ github.workflow }}

.github/workflows/packaging_sdist.yml

@@ -70,9 +70,9 @@ jobs:
           fi
 
       - name: Install Astral UV
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v10.0.1
         with:
-          version: "0.9.0"
+          version: "0.12.10"
           python-version: 3.12
 
       - name: Build sdist

.github/workflows/packaging_wheels.yml

@@ -127,7 +127,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: [ cp311, cp312, cp313 ]
+        python: [ cp311, cp312, cp313, cp315 ]
         platform:
           - { os: windows-2022,     arch: amd64,      cibw_system: win }
           - { os: windows-11-arm,   arch: ARM64,      cibw_system: win } # cibw requires ARM64 to be uppercase

.github/workflows/targeted_test.yml

@@ -55,9 +55,9 @@ jobs:
           submodules: true
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v10.0.1
         with:
-          version: "0.9.0"
+          version: "0.12.10"
           enable-cache: false
           python-version: ${{ inputs.python_version }}
 

pyproject.toml

@@ -29,6 +29,7 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Programming Language :: C++",
 ]
 authors = [{name = "DuckDB Foundation"}]
@@ -240,9 +241,22 @@ name = "pytorch-cpu"
 url = "https://download.pytorch.org/whl/cpu"
 explicit = true
 
+[[tool.uv.index]]
+# TODO: Remove after 3.15.0 release
+name = "scientific-python-nightly"
+url = "https://pypi.anaconda.org/scientific-python-nightly-wheels/simple"
+explicit = true
+
 [tool.uv.sources]
 torch = [ { index = "pytorch-cpu" } ]
 torchvision = [ { index = "pytorch-cpu" } ]
+pandas = [
+    { index = "scientific-python-nightly", marker = "python_version >= '3.15'" },
+]
+pyarrow = [
+    # win/ARM64 has no pyarrow wheels & nightly doesn't have sdist
+    { index = "scientific-python-nightly", marker = "python_version >= '3.15' and (sys_platform != 'win32' or platform_machine != 'ARM64')" },
+]
 
 # todo: adjust for windows arm64 while test dependencies become available
 [dependency-groups] # used for development only, requires pip >=25.1.0
@@ -256,7 +270,7 @@ stubdeps = [ # dependencies used for typehints in the stubs
     "typing-extensions",
 ]
 test = [ # dependencies used for running tests
-    "adbc-driver-manager>=1.10.0; python_version >= '3.10' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
+    "adbc-driver-manager>=1.10.0; python_version >= '3.10' and python_version < '3.15' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
     "adbc-driver-manager>=1.7.0; python_version < '3.10' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
     "pytest",
     "pytest-reraise",
@@ -266,9 +280,11 @@ test = [ # dependencies used for running tests
     "pytest_codspeed",
     "coverage",
     "gcovr; sys_platform != 'win32' or platform_machine != 'ARM64'",
-    "gcsfs; sys_platform != 'win32' or platform_machine != 'ARM64'",
+    "gcsfs; python_version < '3.15' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
     "packaging",
-    "polars>=1.33.0",
+
+    # polars tests fail on 3.15 due to: https://github.com/pola-rs/polars/issues/28347
+    "polars>=1.33.0; python_version < '3.15'", 
     "psutil",
     "py4j",
     "pyotp",
@@ -277,9 +293,11 @@ test = [ # dependencies used for running tests
     "requests",
     "urllib3",
     "fsspec>=2022.11.0; sys_platform != 'win32' or platform_machine != 'ARM64'",
-    "pandas>=3.0.0; python_version > '3.10'",
+    "pandas>=3.0.0; python_version >= '3.11' and python_version < '3.15'",
+    "pandas>=3.0.0.dev0; python_version >= '3.15'",
     "pandas<3.0.0; python_version < '3.11'",
-    "pyarrow>=23.0.0; python_version >= '3.10' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
+    "pyarrow>=23.0.0; python_version >= '3.10' and python_version < '3.15' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
+    "pyarrow>=23.0.0.dev0; python_version >= '3.15' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
     "pyarrow>=18.0.0; python_version < '3.10' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
     "torch>=2.2.2; python_version < '3.13' and ( sys_platform != 'win32' or platform_machine != 'ARM64' )",
     "torch>=2.2.2,<2.12.1; python_version > '3.11' and python_version < '3.13' and sys_platform == 'win32' and platform_machine == 'ARM64'",
@@ -303,9 +321,11 @@ bench = [ # Pinned deps for the benchmark suite (see benchmarks/README.md). Mini
     "numpy<2; ( sys_platform != 'win32' or platform_machine != 'ARM64' ) and python_version < '3.12'",
     "numpy>=2; ( sys_platform != 'win32' or platform_machine != 'ARM64' ) and python_version >= '3.12'",
     "numpy>=2.3; sys_platform == 'win32' and platform_machine == 'ARM64' and python_version >= '3.11'",
-    "pandas>=3.0.0; python_version > '3.10'",
+    "pandas>=3.0.0; python_version >= '3.11' and python_version < '3.15'",
+    "pandas>=3.0.0.dev0; python_version >= '3.15'",
     "pandas<3.0.0; python_version < '3.11'",
-    "pyarrow>=23.0.0; python_version >= '3.10' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
+    "pyarrow>=23.0.0; python_version >= '3.10' and python_version < '3.15' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
+    "pyarrow>=23.0.0.dev0; python_version >= '3.15' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
     "pyarrow>=18.0.0; python_version < '3.10' and (sys_platform != 'win32' or platform_machine != 'ARM64')",
 ]
 scripts = [ # dependencies used for running scripts
@@ -363,6 +383,8 @@ filterwarnings = [
     # Pyspark is throwing these warnings
     "ignore:distutils Version classes are deprecated:DeprecationWarning",
     "ignore:is_datetime64tz_dtype is deprecated:DeprecationWarning",
+    # pandas 3.1.0.dev0 deprecates the inplace keyword with a warning
+    "ignore::pandas.errors.Pandas4Warning",
 ]
 
 [tool.mypy]