ENH: Need to sync MACOSX_DEPLOYMENT_TARGET to runner version

.github/workflows/wheels.yml

@@ -122,7 +122,7 @@ jobs:
         uses: ilammy/msvc-dev-cmd@v1
 
       - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel==2.18.0 setuptools toml
+        run: python -m pip install cibuildwheel==2.16.2 setuptools toml
 
       - name: Get package name and version (Linux / Mac)
         if: ${{ ! startsWith(matrix.os, 'windows-') }}
@@ -156,16 +156,17 @@ jobs:
             python -m pip install cmake ninja setuptools
 
           CIBW_ARCHS_MACOS: ${{ matrix.arch }}
+
+          CIBW_ENVIRONMENT_MACOS: |
+            CMAKE_OSX_ARCHITECTURES=${{ matrix.arch }} CMAKE_PREFIX_PATH=/usr/local MACOSX_DEPLOYMENT_TARGET=$( sw_vers -productVersion | awk -F '.' '{print $1".0"}' )
+
           CIBW_BEFORE_ALL_MACOS: |
             python -m pip install cmake ninja setuptools
             brew update
             if ! brew list libpng &>/dev/null; then
                 HOMEBREW_NO_AUTO_UPDATE=1 brew install libpng
             fi
 
-          CIBW_ENVIRONMENT_MACOS: |
-            CMAKE_OSX_ARCHITECTURES=${{ matrix.arch }} CMAKE_PREFIX_PATH=/usr/local MACOSX_DEPLOYMENT_TARGET=10.14
-
         run: python -m cibuildwheel --output-dir wheelhouse/cp${{ matrix.cibw_python }}-${{matrix.platform_id }}
 
       - name: Install and test (Linux / Mac)

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["scikit-build-core >=0.9.3", "nanobind >=1.3.2"]
+requires = ["scikit-build-core >=0.4.3", "nanobind >=1.3.2"]
 build-backend = "scikit_build_core.build"
 
 [project]
@@ -54,9 +54,3 @@ build-verbosity = 1
 test-command = "pytest {project}/tests"
 test-requires = "pytest"
 
-# Don't test Python 3.8 wheels on macOS/arm64
-test-skip="cp38-macosx_*:arm64"
-
-# Needed for full C++17 support
-[tool.cibuildwheel.macos.environment]
-MACOSX_DEPLOYMENT_TARGET = "10.14"