test configuration housekeeping

.github/workflows/CI.yml

@@ -139,10 +139,11 @@ jobs:
         run: pytest -r fE --tb=short openff/toolkit/_tests/test_links.py
 
       - name: Run mypy
-        # subtle differences in Python/mypy versions, just keep it passing on one
-        # prefer having htis back to rdkit == true, but builds often have bugs in stubs and
-        # there are other bugs/subtleties (in the source code and builds) that reduce the number
-        # of available builds
+        # Subtle differences in Python/mypy versions, just keep it passing on one.
+        # When possible re-enable this with OE+RDK=True, but for now rdkit builds often have bugs
+        # in stubs and there are other subtleties (in the source code and builds) that reduce the number
+        # of available builds.
+        # See ex https://github.com/rdkit/rdkit/issues/7221
         if: ${{ matrix.rdkit == false && matrix.openeye && matrix.python-version == 3.10 }}
         run: mypy -p "openff.toolkit"
 

devtools/conda-envs/test_env.yaml

@@ -24,10 +24,11 @@ dependencies:
   - openff-nagl-models ==0.3.0
     # Toolkit-specific
   - ambertools >=22
-    # https://github.com/rdkit/rdkit/issues/7221
+    # rdkit 2024.03.6 and 2024.09.1 packages fail when run natively on osx-arm64 macs
     # https://github.com/rdkit/rdkit/issues/7583
     # and a bad stub (causing mypy failure only)
-  - rdkit !=2024.03.6,!=2024.03.5,!=2024.03.4
+    # https://github.com/rdkit/rdkit/issues/7221
+  - rdkit !=2024.03.6,!=2024.09.1
 
   - openeye-toolkits
     # Test-only/optional/dev/typing