Enable support of Python 3.15

.github/workflows/build-with-clang.yml

@@ -14,6 +14,7 @@ jobs:
 
     strategy:
       matrix:
+        # TODO: add "3.15" back once mkl-service publishes a Python 3.15 wheel on PyPI
         python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         numpy_version: ["'numpy>=2'"]
 

.github/workflows/build-with-standard-clang.yml

@@ -14,6 +14,7 @@ jobs:
 
     strategy:
       matrix:
+        # TODO: add "3.15" back once mkl-service publishes a Python 3.15 wheel on PyPI
         python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         numpy_version: ["'numpy>=2'"]
 

.github/workflows/build_pip.yml

@@ -33,6 +33,12 @@ jobs:
           - python: "3.14"
             python_spec: "3.14.* *_cp314t"
             use_pre: "--pre"
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            use_pre: ""
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            use_pre: "--pre"
 
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

.github/workflows/conda-package-cf.yml

@@ -38,6 +38,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
 
     steps:
       - name: Cancel Previous Runs
@@ -113,6 +117,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: ubuntu-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: ubuntu-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       CHANNELS: -c conda-forge --override-channels
@@ -198,6 +208,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
 
     steps:
       - name: Cancel Previous Runs
@@ -275,6 +289,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: windows-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: windows-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       workdir: '${{ github.workspace }}'

.github/workflows/conda-package.yml

@@ -39,6 +39,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@d07a454dad7609a92316b57b23c9ccfd4f59af66 # 0.13.1
@@ -136,6 +140,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: ubuntu-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: ubuntu-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       CHANNELS: -c https://software.repos.intel.com/python/conda -c conda-forge --override-channels
@@ -242,6 +252,10 @@ jobs:
             numpy: "2.3"
             python_spec: "3.14.* *_cp314t"
             python_tag: "3.14t"
+          - python: "3.15"
+            numpy: "2.5"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@d07a454dad7609a92316b57b23c9ccfd4f59af66 # 0.13.1
@@ -330,6 +344,12 @@ jobs:
             numpy: 'numpy">=2"'
             experimental: false
             runner: windows-latest
+          - python: "3.15"
+            python_spec: "3.15.* *_cp315"
+            python_tag: "3.15"
+            numpy: 'numpy">=2"'
+            experimental: false
+            runner: windows-latest
     continue-on-error: ${{ matrix.experimental }}
     env:
       workdir: '${{ github.workspace }}'

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 * Added support for free-threaded (GIL-disabled) CPython builds: the Cython extension is compiled with `freethreading_compatible=True` [gh-357](https://github.com/IntelPython/mkl_fft/pull/357)
+* Enabled support of Python 3.15 [gh-378](https://github.com/IntelPython/mkl_fft/pull/378)
 
 ### Changed
 * Raised the minimum build-time `Cython` requirement to `3.1.0`, the first release providing the `freethreading_compatible` directive [gh-357](https://github.com/IntelPython/mkl_fft/pull/357)

pyproject.toml

@@ -48,6 +48,7 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
+  "Programming Language :: Python :: 3.15",
   "Programming Language :: Python :: Free Threading :: 2 - Beta",
   "Programming Language :: Python :: Implementation :: CPython",
   "Topic :: Software Development",
@@ -63,7 +64,7 @@ keywords = ["DFTI", "FFT", "Fourier", "MKL"]
 license = "BSD-3-Clause"
 name = "mkl_fft"
 readme = { file = "README.md", content-type = "text/markdown" }
-requires-python = ">=3.10,<3.15"
+requires-python = ">=3.10,<3.16"
 
 [project.optional-dependencies]
 benchmark = ["asv>=0.6", "psutil", "scipy>=1.10"]