diff --git a/.github/scripts/test_ci_workflow_contracts.py b/.github/scripts/test_ci_workflow_contracts.py
index 274b3001..86813822 100644
--- a/.github/scripts/test_ci_workflow_contracts.py
+++ b/.github/scripts/test_ci_workflow_contracts.py
@@ -17,6 +17,81 @@
 
 
 class WorkflowContractsTest(unittest.TestCase):
+    def test_wheels_preserve_abi_coverage_and_release_gates(self):
+        workflow = (ROOT / ".github/workflows/release.yml").read_text()
+        config = tomllib.loads((ROOT / "pyproject.toml").read_text())
+        wheels = config["tool"]["cibuildwheel"]
+        # Keep the full installed-wheel suite and platform repair hooks.
+        self.assertIn("pytest {project}/tests/python", wheels["test-command"])
+        self.assertIn("delocate-wheel", wheels["macos"]["repair-wheel-command"])
+        self.assertIn("delvewheel repair", wheels["windows"]["repair-wheel-command"])
+        self.assertIn("scripts/build-macos-openmp.sh", wheels["macos"]["before-all"])
+        self.assertEqual(workflow.count("pattern: '*-wheels'"), 2)
+        artifacts = set()
+        for prefix, tag, check_name in (
+            ("linux", "manylinux_x86_64", "Linux x86-64 wheels"),
+            (
+                "linux-arm64",
+                "manylinux_aarch64",
+                "Linux ARM64 wheels (CPython 3.11–3.14)",
+            ),
+            ("windows", "win_amd64", "Windows x86-64 wheels"),
+            ("macos", "macosx_arm64", "macOS arm64 wheels (CPython 3.11–3.14)"),
+        ):
+            with self.subTest(platform=prefix):
+                build = workflow.split(f"  {prefix}-wheel-build:\n", 1)[1].split(
+                    f"  {prefix}-wheels:\n", 1
+                )[0]
+                selection = re.search(
+                    r"CIBW_BUILD: \$\{\{ github.event_name == 'pull_request' "
+                    r"&& '([^']+)' \|\| '([^']+)' \}\}",
+                    build,
+                )
+                self.assertIsNotNone(selection)
+                supported = {
+                    identifier
+                    for identifier in wheels["build"].split()
+                    if identifier.endswith(f"-{tag}")
+                }
+                for patterns, abis in zip(
+                    selection.groups(), ((311, 314), (311, 312, 313, 314)), strict=True
+                ):
+                    selected = {
+                        identifier
+                        for identifier in supported
+                        if any(
+                            fnmatch.fnmatchcase(identifier, p) for p in patterns.split()
+                        )
+                    }
+                    self.assertEqual(selected, {f"cp{abi}-{tag}" for abi in abis})
+                self.assertNotIn("CIBW_TEST", build)
+                self.assertNotIn("continue-on-error", build)
+                self.assertNotIn("matrix", build)
+                artifact = re.search(r"          name: (\S+)", build).group(1)
+                self.assertTrue(fnmatch.fnmatchcase(artifact, "*-wheels"))
+                self.assertNotIn(artifact, artifacts)
+                artifacts.add(artifact)
+                gate = re.search(
+                    rf"^  {prefix}-wheels:\n(.*?)(?=^  [\w-]+:|\Z)",
+                    workflow,
+                    re.MULTILINE | re.DOTALL,
+                ).group(1)
+                self.assertIn(f"name: {check_name}", gate)
+                self.assertIn(f"needs: {prefix}-wheel-build", gate)
+                self.assertIn(
+                    f"BUILD_RESULT: ${{{{ needs.{prefix}-wheel-build.result }}}}", gate
+                )
+                command = gate.split("        run: ", 1)[1].strip()
+                for result in ("success", "failure", "cancelled", "skipped", ""):
+                    with self.subTest(result=result):
+                        verdict = subprocess.run(
+                            ["bash", "-e", "-c", command],
+                            env=dict(os.environ, BUILD_RESULT=result),
+                            capture_output=True,
+                            check=False,
+                        )
+                        self.assertEqual(verdict.returncode == 0, result == "success")
+
     def test_installed_typing_checks_are_required(self):
         config = tomllib.loads((ROOT / "pyproject.toml").read_text())
         test_dependencies = config["project"]["optional-dependencies"]["test"]
@@ -54,7 +129,7 @@ def test_installed_typing_checks_are_required(self):
         )[0]
         self.assertIn('pip install ".[test,typing]"', build)
         self.assertIn(
-            "python -m pytest tests/python/test_editor_support.py tests/test_mypy.py",
+            "python -m pytest tests/python/test_editor_support.py::test_installed_public_declarations",
             build,
         )
         self.assertNotIn("continue-on-error", build)
@@ -69,12 +144,49 @@ def test_installed_typing_checks_are_required(self):
         for path in (
             "python_bindings/__init__.pyi",
             "tests/python/typing/public_api.py",
-            "tests/test_mypy.py",
         ):
             with self.subTest(path=path):
                 self.assertLessEqual(
                     {"python_build", "python_quality", "wheels"}, classify([path])
                 )
+        self.assertEqual(
+            {"python_quality", "python_build", "wheels"},
+            classify(["tests/test_mypy.py"]),
+        )
+
+    def test_nonrelease_push_keeps_typing_checks_when_wheels_skip(self):
+        from test_prepare_release import ReleaseTest
+
+        release = ReleaseTest().run_prepare(tags="v0.3.3", tag_sha="b" * 40)
+        self.assertEqual(release["build"], "false")
+        workflow = (ROOT / ".github/workflows/python.yml").read_text()
+        build = workflow.split("  python-build:\n", 1)[1].split(
+            "  python-result:\n", 1
+        )[0]
+        steps = re.findall(
+            r"^      - name: (.*?)(?=^      - |\Z)",
+            build,
+            re.MULTILINE | re.DOTALL,
+        )
+        typing_steps = [step for step in steps if "tests/test_mypy.py" in step]
+        self.assertEqual(len(typing_steps), 1)
+        self.assertIn("if: github.event_name == 'push'", typing_steps[0])
+        self.assertIn(
+            "run: python -m pytest tests/python/test_editor_support.py tests/test_mypy.py",
+            typing_steps[0],
+        )
+        declaration_steps = [
+            step for step in steps if "::test_installed_public_declarations" in step
+        ]
+        self.assertEqual(len(declaration_steps), 1)
+        self.assertIn("if: github.event_name == 'pull_request'", declaration_steps[0])
+        for path in (
+            "tests/test_mypy.py",
+            "tests/python/test_editor_support.py",
+            "python_bindings/__init__.pyi",
+        ):
+            with self.subTest(path=path):
+                self.assertIn("python_build", classify([path]))
 
     def test_pyright_checks_are_required_and_scoped(self):
         config = tomllib.loads((ROOT / "pyproject.toml").read_text())
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 361d8f64..3658e8e6 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -73,7 +73,14 @@ jobs:
       - name: Build and install wheel
         run: pip install ".[test,typing]" -v
 
-      - name: Check installed Python types and editor metadata
+      # PR wheels own mypy and the full editor suite. Non-release branch pushes
+      # may skip wheels, so source installs must retain those checks on pushes.
+      - name: Check source-installed Python declarations
+        if: github.event_name == 'pull_request'
+        run: python -m pytest tests/python/test_editor_support.py::test_installed_public_declarations --tb=short -q
+
+      - name: Check installed Python types and editor metadata on pushes
+        if: github.event_name == 'push'
         env:
           OMP_NUM_THREADS: "2"
         run: python -m pytest tests/python/test_editor_support.py tests/test_mypy.py --tb=short -q
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 625d53ce..56c23e07 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -56,7 +56,7 @@ jobs:
         run: python .github/scripts/prepare_release.py
 
   linux-wheel-build:
-    name: Linux x86-64 ${{ matrix.abi }} wheel
+    name: Linux x86-64 wheel builds
     needs: [prepare, changes]
     if: >-
       !cancelled() && needs.prepare.result == 'success' &&
@@ -64,10 +64,6 @@ jobs:
       (needs.changes.result != 'success' || needs.changes.outputs.wheels == 'true')
     runs-on: ubuntu-latest
     timeout-minutes: 90
-    strategy:
-      fail-fast: false
-      matrix:
-        abi: ${{ fromJSON(github.event_name == 'pull_request' && '["cp311","cp314"]' || '["cp311","cp312","cp313","cp314"]') }}
     steps:
       - uses: actions/checkout@v7
         with:
@@ -75,16 +71,16 @@ jobs:
       - uses: actions/setup-python@v7
         with:
           python-version: "3.14"
-      - name: Build and test wheel
+      - name: Build and test wheels
         uses: pypa/cibuildwheel@v4.2.0
         env:
-          CIBW_BUILD: ${{ matrix.abi }}-manylinux_x86_64
+          CIBW_BUILD: ${{ github.event_name == 'pull_request' && 'cp311-manylinux_x86_64 cp314-manylinux_x86_64' || 'cp311-manylinux_x86_64 cp312-manylinux_x86_64 cp313-manylinux_x86_64 cp314-manylinux_x86_64' }}
         with:
           output-dir: wheelhouse
       - name: Store wheel artifact
         uses: actions/upload-artifact@v7
         with:
-          name: linux-${{ matrix.abi }}-wheels
+          name: linux-wheels
           path: wheelhouse/*.whl
           if-no-files-found: error
 
@@ -101,7 +97,7 @@ jobs:
         run: test "$BUILD_RESULT" = success
 
   linux-arm64-wheel-build:
-    name: Linux ARM64 ${{ matrix.abi }} wheel
+    name: Linux ARM64 wheel builds
     needs: [prepare, changes]
     if: >-
       !cancelled() && needs.prepare.result == 'success' &&
@@ -109,10 +105,6 @@ jobs:
       (needs.changes.result != 'success' || needs.changes.outputs.wheels == 'true')
     runs-on: ubuntu-24.04-arm
     timeout-minutes: 90
-    strategy:
-      fail-fast: false
-      matrix:
-        abi: ${{ fromJSON(github.event_name == 'pull_request' && '["cp311","cp314"]' || '["cp311","cp312","cp313","cp314"]') }}
     steps:
       - uses: actions/checkout@v7
         with:
@@ -122,16 +114,16 @@ jobs:
           python-version: "3.14"
       - name: Verify native ARM64 runner
         run: test "$(uname -m)" = aarch64
-      - name: Build and test repaired wheel
+      - name: Build and test repaired wheels
         uses: pypa/cibuildwheel@v4.2.0
         env:
-          CIBW_BUILD: ${{ matrix.abi }}-manylinux_aarch64
+          CIBW_BUILD: ${{ github.event_name == 'pull_request' && 'cp311-manylinux_aarch64 cp314-manylinux_aarch64' || 'cp311-manylinux_aarch64 cp312-manylinux_aarch64 cp313-manylinux_aarch64 cp314-manylinux_aarch64' }}
         with:
           output-dir: wheelhouse
       - name: Store wheel artifact
         uses: actions/upload-artifact@v7
         with:
-          name: linux-arm64-${{ matrix.abi }}-wheels
+          name: linux-arm64-wheels
           path: wheelhouse/*.whl
           if-no-files-found: error
 
@@ -147,7 +139,7 @@ jobs:
         run: test "$BUILD_RESULT" = success
 
   windows-wheel-build:
-    name: Windows x86-64 ${{ matrix.abi }} wheel
+    name: Windows x86-64 wheel builds
     needs: [prepare, changes]
     if: >-
       !cancelled() && needs.prepare.result == 'success' &&
@@ -155,10 +147,6 @@ jobs:
       (needs.changes.result != 'success' || needs.changes.outputs.wheels == 'true')
     runs-on: windows-2025-vs2026
     timeout-minutes: 90
-    strategy:
-      fail-fast: false
-      matrix:
-        abi: ${{ fromJSON(github.event_name == 'pull_request' && '["cp311","cp314"]' || '["cp311","cp312","cp313","cp314"]') }}
     steps:
       - uses: actions/checkout@v7
         with:
@@ -166,16 +154,16 @@ jobs:
       - uses: actions/setup-python@v7
         with:
           python-version: "3.14"
-      - name: Build and test wheel
+      - name: Build and test wheels
         uses: pypa/cibuildwheel@v4.2.0
         env:
-          CIBW_BUILD: ${{ matrix.abi }}-win_amd64
+          CIBW_BUILD: ${{ github.event_name == 'pull_request' && 'cp311-win_amd64 cp314-win_amd64' || 'cp311-win_amd64 cp312-win_amd64 cp313-win_amd64 cp314-win_amd64' }}
         with:
           output-dir: wheelhouse
       - name: Store wheel artifact
         uses: actions/upload-artifact@v7
         with:
-          name: windows-${{ matrix.abi }}-wheels
+          name: windows-wheels
           path: wheelhouse/*.whl
           if-no-files-found: error
 
@@ -191,7 +179,7 @@ jobs:
         run: test "$BUILD_RESULT" = success
 
   macos-wheel-build:
-    name: macOS arm64 ${{ matrix.abi }} wheel
+    name: macOS arm64 wheel builds
     needs: [prepare, changes]
     if: >-
       !cancelled() && needs.prepare.result == 'success' &&
@@ -199,10 +187,7 @@ jobs:
       (needs.changes.result != 'success' || needs.changes.outputs.wheels == 'true')
     runs-on: macos-15
     timeout-minutes: 90
-    strategy:
-      fail-fast: false
-      matrix:
-        abi: ${{ fromJSON(github.event_name == 'pull_request' && '["cp311","cp314"]' || '["cp311","cp312","cp313","cp314"]') }}
+    # Share one runner and one before-all OpenMP build across the selected ABIs.
     steps:
       - uses: actions/checkout@v7
         with:
@@ -212,16 +197,16 @@ jobs:
           python-version: "3.14"
       - name: Verify native Apple Silicon runner
         run: test "$(uname -m)" = arm64
-      - name: Build and test wheel with bundled OpenMP
+      - name: Build and test wheels with bundled OpenMP
         uses: pypa/cibuildwheel@v4.2.0
         env:
-          CIBW_BUILD: ${{ matrix.abi }}-macosx_arm64
+          CIBW_BUILD: ${{ github.event_name == 'pull_request' && 'cp311-macosx_arm64 cp314-macosx_arm64' || 'cp311-macosx_arm64 cp312-macosx_arm64 cp313-macosx_arm64 cp314-macosx_arm64' }}
         with:
           output-dir: wheelhouse
       - name: Store wheel artifact
         uses: actions/upload-artifact@v7
         with:
-          name: macos-${{ matrix.abi }}-wheels
+          name: macos-wheels
           path: wheelhouse/*.whl
           if-no-files-found: error