Ensure support for Python 3.12 and PyPy 3.8-3.10

These changes:
  * enable testing for Python 3.12 and PyPy 3.8-3.10
  * update classifiers at setup.cfg
  * add a news fragment

.github/workflows/ci-cd.yml

@@ -67,7 +67,15 @@ jobs:
     needs: [lint]
     strategy:
       matrix:
-        pyver: ['3.8', '3.9', '3.10', '3.11']
+        pyver:
+          - '3.12'
+          - '3.11'
+          - '3.10'
+          - '3.9'
+          - '3.8'
+          - 'pypy3.10'
+          - 'pypy3.9'
+          - 'pypy3.8'
         no-extensions: ['', 'Y']
         experimental: [false]
         os: [ubuntu, macos, windows]
@@ -76,15 +84,12 @@ jobs:
             no-extensions: 'Y'
           - os: windows
             no-extensions: 'Y'
-        include:
-          - pyver: 3.12-dev
+          - pyver: pypy3.10
+            no-extensions: ''
+          - pyver: pypy3.9
+            no-extensions: ''
+          - pyver: pypy3.8
             no-extensions: ''
-            experimental: true
-            os: ubuntu
-          - pyver: 3.12-dev
-            no-extensions: 'Y'
-            experimental: true
-            os: ubuntu
       fail-fast: false
     runs-on: ${{ matrix.os }}-latest
     timeout-minutes: 15

CHANGES/553.feature

@@ -0,0 +1 @@
+Ensure support for Python 3.12 and PyPy 3.8-3.10.

setup.cfg

@@ -28,6 +28,9 @@ classifiers =
   Programming Language :: Python :: 3.9
   Programming Language :: Python :: 3.10
   Programming Language :: Python :: 3.11
+  Programming Language :: Python :: 3.12
+  Programming Language :: Python :: Implementation :: CPython
+  Programming Language :: Python :: Implementation :: PyPy
   Development Status :: 5 - Production/Stable
   Operating System :: POSIX
   Operating System :: MacOS :: MacOS X

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 
-envlist = check, clean, {py38,py39,py310,py311,py312}-{cython,pure}, report
+envlist = check, clean, py3{12,11,10,9,8}-{cython,pure}, pypy3{10,9,8}-pure, report
 
 [testenv]