The 3.12 guard rested on generate_readme f-strings that have since been
rewritten. Every script compiles under CPython 3.9.25, 3.10 and 3.11, and
only generate_pack's parenthesized context managers fail under 3.8. Under
3.9 the offline pipeline (--skip-packs) completed with no change to the
committed artifacts, the 15 manifests matched 3.12 byte for byte, and the
RomM pack was identical. CI now compiles every script under a real 3.9.
A pack is the platform baseline plus what its cores need, so a profile
change alters pack contents; build.yml did not watch emulators/. Its
release notes read git log -15 on a depth-1 clone, which returns one
commit, and its test step ran a single module out of nineteen.
validate.yml ignored install.sh and install.ps1, so a PR touching only
a bootstrap skipped the test that pins them to install.py.
checkout and setup-python were pinned to v6 in two workflows and v7 in
the others; jsonschema was imported by validate_schemas.py and
declared nowhere, and requires-python claimed 3.10 while both
bootstraps accept 3.8.