ci: build wheels for all supported Python versions and platforms

.github/workflows/publish-python-package.yml

@@ -6,12 +6,15 @@ on:
       - 'v*'
 
 jobs:
-  build:
+  build-wheels:
     name: Build wheels on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        # macos-latest is arm64 on GitHub Actions now; macos-13 is the last Intel runner.
+        # Keep both so we ship wheels for Apple Silicon and Intel Macs.
+        os: [ubuntu-latest, macos-13, macos-latest, windows-latest]
 
     steps:
       - uses: actions/checkout@v4
@@ -29,11 +32,15 @@ jobs:
             3.10
             3.11
             3.12
+            3.13
 
       - name: Build wheels
         uses: PyO3/maturin-action@v1
         with:
-          args: --release --out dist
+          # -i enumerates interpreters maturin should build for. Without this,
+          # maturin builds for whichever python3 happens to be on PATH (one
+          # cp version per OS) — the root cause of the 0.9.3 / 0.10.0 wheel gap.
+          args: --release --out dist -i python3.10 python3.11 python3.12 python3.13
           sccache: 'true'
           manylinux: auto
 
@@ -43,21 +50,44 @@ jobs:
           name: wheels-${{ matrix.os }}
           path: dist
 
+  build-sdist:
+    name: Build sdist
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - name: Build sdist
+        uses: PyO3/maturin-action@v1
+        with:
+          command: sdist
+          args: --out dist
+      - uses: actions/upload-artifact@v4
+        with:
+          name: sdist
+          path: dist
+
   release:
     name: Release
     runs-on: ubuntu-latest
-    needs: [build]
+    needs: [build-wheels, build-sdist]
     steps:
       - uses: actions/download-artifact@v4
         with:
           pattern: wheels-*
           path: dist
           merge-multiple: true
 
+      - uses: actions/download-artifact@v4
+        with:
+          name: sdist
+          path: dist
+
       - name: Publish to PyPI
         uses: PyO3/maturin-action@v1
         with:
           command: upload
           args: --non-interactive --skip-existing dist/*
         env:
-          MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+          MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_API_TOKEN }}