Update to pybind11 3.1.x

.github/workflows/dist.yml

@@ -59,7 +59,7 @@ jobs:
 
     - uses: actions/setup-python@v6
       with:
-        python-version: 3.8
+        python-version: 3.9
     - name: Sphinx
       run: |
         pip --disable-pip-version-check install -e .
@@ -76,7 +76,7 @@ jobs:
 
     - uses: actions/setup-python@v6
       with:
-        python-version: 3.8
+        python-version: 3.9
 
     - name: Install build
       run: python -m pip --disable-pip-version-check install build
@@ -98,7 +98,6 @@ jobs:
       matrix:
         os: ["ubuntu-24.04", "macos-14", "windows-2022"]
         python_version:
-        - '3.8'
         - '3.9'
         - '3.10'
         - '3.11'
@@ -110,7 +109,7 @@ jobs:
           python_version: '3.8'
         include:
         - os: macos-15-intel
-          python_version: '3.8'
+          python_version: '3.9'
         - os: ubuntu-24.04-arm
           python_version: '3.11'
 

pyproject.toml

@@ -7,7 +7,7 @@ name = "semiwrap"
 dynamic = ["version"]
 description = "Semi-automated tool to wrap C++ code for use by python"
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = "BSD-3-Clause"
 license-files = ["LICENSE.txt", "LICENSE-pybind11.txt"]
 authors = [
@@ -34,7 +34,7 @@ dependencies = [
     "typing-extensions",
     "pyyaml >= 5.1",
     "pybind11-stubgen ~= 2.5.1",
-    "pybind11 ~= 3.0.2",
+    "pybind11 ~= 3.1.0",
 ]
 
 [project.optional-dependencies]