Drop cp315 until Python 3.15 reaches beta

Author: arkkln

.github/workflows/test-pypi.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: ['3.12', '3.13', '3.14', '3.15']
+        python-version: ['3.12', '3.13', '3.14']
 
     steps:
       - name: Set up Python ${{ matrix.python-version }}

pyproject.toml

@@ -39,7 +39,6 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
-    "Programming Language :: Python :: 3.15",
     "Programming Language :: Python :: Implementation :: CPython",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: Scientific/Engineering",
@@ -104,10 +103,8 @@ kh57 = [
 # CI/CD - cibuildwheel configuration
 # ============================================================================
 [tool.cibuildwheel]
-build = ["cp312-*", "cp313-*", "cp314-*", "cp315-*"]
-
-# opt into pre-release CPython so cp315 wheels build until 3.15 is stable
-enable = ["cpython-prerelease"]
+# cp315 will be added when Python 3.15 reaches beta and cibuildwheel accepts it as a selector.
+build = ["cp312-*", "cp313-*", "cp314-*"]
 
 skip = [
     "*-musllinux_*",