add CI on macos-latest, for Python 3.14 only

Author: rolandwalker

.github/workflows/ci.yml

@@ -19,7 +19,17 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-latest, macos-latest]
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        exclude:
+          - os: macos-latest
+            python-version: '3.10'
+          - os: macos-latest
+            python-version: '3.11'
+          - os: macos-latest
+            python-version: '3.12'
+          - os: macos-latest
+            python-version: '3.13'
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

changelog.md

@@ -5,6 +5,7 @@ Internal
 ---------
 * Factor `main.py` into several files using mixins.
 * Update Python versions used in CI.
+* Add CI on macOS.
 
 
 1.73.1 (2026/05/29)