From 3940bdeed6d960584521eeebfe929dc37af3412e Mon Sep 17 00:00:00 2001
From: Daniel Haag <121057143+denialhaag@users.noreply.github.com>
Date: Sun, 25 Oct 2026 01:38:30 +0200
Subject: [PATCH] Build Python 3.15 wheels

Assisted-by: GPT-6 Astra via Codex
---
 .github/workflows/ci.yml | 14 +++++++++-----
 setup.py                 |  2 +-
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 45a1cf2d3..5823d98b5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,13 +46,14 @@ jobs:
           # macosx x86_64
           # {os: macos-latest, dist: cp36-macosx_x86_64},
           # {os: macos-latest, dist: cp37-macosx_x86_64},
-          {os: macos-latest, dist: cp38-macosx_x86_64},
+          # {os: macos-latest, dist: cp38-macosx_x86_64},
           {os: macos-latest, dist: cp39-macosx_x86_64},
           {os: macos-latest, dist: cp310-macosx_x86_64},
           {os: macos-latest, dist: cp311-macosx_x86_64},
           {os: macos-latest, dist: cp312-macosx_x86_64},
           {os: macos-latest, dist: cp313-macosx_x86_64},
           {os: macos-latest, dist: cp314-macosx_x86_64},
+          {os: macos-latest, dist: cp315-macosx_x86_64},
           # macosx arm64
           # {os: macos-latest, dist: cp38-macosx_arm64},
           {os: macos-latest, dist: cp39-macosx_arm64},
@@ -61,6 +62,7 @@ jobs:
           {os: macos-latest, dist: cp312-macosx_arm64},
           {os: macos-latest, dist: cp313-macosx_arm64},
           {os: macos-latest, dist: cp314-macosx_arm64},
+          {os: macos-latest, dist: cp315-macosx_arm64},
           # macosx universal2
           # {os: macos-latest, dist: cp38-macosx_universal2},
           # {os: macos-latest, dist: cp39-macosx_universal2},
@@ -71,13 +73,14 @@ jobs:
           # windows amd64
           # {os: windows-latest, dist: cp36-win_amd64},
           # {os: windows-latest, dist: cp37-win_amd64},
-          {os: windows-latest, dist: cp38-win_amd64},
+          # {os: windows-latest, dist: cp38-win_amd64},
           {os: windows-latest, dist: cp39-win_amd64},
           {os: windows-latest, dist: cp310-win_amd64},
           {os: windows-latest, dist: cp311-win_amd64},
           {os: windows-latest, dist: cp312-win_amd64},
           {os: windows-latest, dist: cp313-win_amd64},
           {os: windows-latest, dist: cp314-win_amd64},
+          {os: windows-latest, dist: cp315-win_amd64},
           # windows win32
           # {os: windows-latest, dist: cp36-win32},
           # {os: windows-latest, dist: cp37-win32},
@@ -94,13 +97,14 @@ jobs:
           # ubuntu x86_64
           # {os: ubuntu-latest, dist: cp36-manylinux_x86_64},
           # {os: ubuntu-latest, dist: cp37-manylinux_x86_64},
-          {os: ubuntu-latest, dist: cp38-manylinux_x86_64},
+          # {os: ubuntu-latest, dist: cp38-manylinux_x86_64},
           {os: ubuntu-latest, dist: cp39-manylinux_x86_64},
           {os: ubuntu-latest, dist: cp310-manylinux_x86_64},
           {os: ubuntu-latest, dist: cp311-manylinux_x86_64},
           {os: ubuntu-latest, dist: cp312-manylinux_x86_64},
           {os: ubuntu-latest, dist: cp313-manylinux_x86_64},
           {os: ubuntu-latest, dist: cp314-manylinux_x86_64},
+          {os: ubuntu-latest, dist: cp315-manylinux_x86_64},
           # ubuntu i686
           # {os: ubuntu-latest, dist: cp36-manylinux_i686},
           # {os: ubuntu-latest, dist: cp37-manylinux_i686},
@@ -137,7 +141,7 @@ jobs:
         sudo apt update
         sudo apt install gcc-11 g++-11
 
-    - uses: pypa/cibuildwheel@v3.3.1
+    - uses: pypa/cibuildwheel@v4.3.4
 
     - name: Verify clean directory
       run: git diff --exit-code
@@ -213,7 +217,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [windows-latest, macos-latest, ubuntu-latest]
-        python-version: ["3.14"]
+        python-version: ["3.15"]
 
     runs-on: ${{ matrix.platform }}
 
diff --git a/setup.py b/setup.py
index da3f1cd03..c34c7c637 100644
--- a/setup.py
+++ b/setup.py
@@ -153,7 +153,7 @@ def build_extension(self, ext):
     entry_points={
         'console_scripts': ['pymatching=pymatching._cli_argv:cli_argv'],
     },
-    python_requires=">=3.8",
+    python_requires=">=3.9",
     install_requires=['scipy', 'numpy', 'networkx', 'matplotlib'],
     # Needed on Windows to avoid the default `build` colliding with Bazel's `BUILD`.
     options={'build': {'build_base': 'python_build_stim'}},