Drop experimental Python 3.13 free-threaded wheels (#9535)

Author: hugovk

.github/workflows/wheels.yml

@@ -39,7 +39,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  EXPECTED_DISTS: 75
+  EXPECTED_DISTS: 66
   FORCE_COLOR: 1
 
 jobs:
@@ -127,7 +127,7 @@ jobs:
           CIBW_PLATFORM: ${{ matrix.platform }}
           CIBW_ARCHS: ${{ matrix.cibw_arch }}
           CIBW_BUILD: ${{ matrix.build }}
-          CIBW_ENABLE: cpython-prerelease cpython-freethreading pypy
+          CIBW_ENABLE: cpython-prerelease pypy
           MACOSX_DEPLOYMENT_TARGET: ${{ matrix.macosx_deployment_target }}
 
       - uses: actions/upload-artifact@v7
@@ -198,7 +198,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.cibw_arch }}
           CIBW_BEFORE_ALL: "{package}\\winbuild\\build\\build_dep_all.cmd"
           CIBW_CACHE_PATH: "C:\\cibw"
-          CIBW_ENABLE: cpython-prerelease cpython-freethreading pypy
+          CIBW_ENABLE: cpython-prerelease pypy
           CIBW_TEST_SKIP: "*-win_arm64"
           CIBW_TEST_COMMAND: 'docker run --rm
             -v {project}:C:\pillow

docs/releasenotes/12.3.0.rst

@@ -0,0 +1,57 @@
+12.3.0
+------
+
+Security
+========
+
+TODO
+^^^^
+
+TODO
+
+:cve:`YYYY-XXXXX`: TODO
+^^^^^^^^^^^^^^^^^^^^^^^
+
+TODO
+
+Backwards incompatible changes
+==============================
+
+TODO
+^^^^
+
+TODO
+
+Deprecations
+============
+
+TODO
+^^^^
+
+TODO
+
+API changes
+===========
+
+TODO
+^^^^
+
+TODO
+
+API additions
+=============
+
+TODO
+^^^^
+
+TODO
+
+Other changes
+=============
+
+Removed Python 3.13 free-threaded wheels
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Python 3.13 added an experimental free-threaded mode, and Pillow 11.0.0 added
+corresponding wheels. Now that Python 3.14 includes official support for it, Pillow has
+removed wheels for Python 3.13 free-threaded mode.

docs/releasenotes/index.rst

@@ -15,6 +15,7 @@ expected to be backported to earlier versions.
   :maxdepth: 2
 
   versioning
+  12.3.0
   12.2.0
   12.1.1
   12.1.0