The previous pin matched the two actions by their own version numbers, which
is meaningless: upload-artifact and download-artifact release on unrelated
cadences. upload v5 bundles @actions/artifact ^4.0.0; download v5 bundles
^2.3.2. "v5 and v5" was in fact a mismatched pair.
download v6 is the tag that puts ^4.0.0 on both sides — and ^4.0.0 is the
library major just proven against this instance by the upload side
(thoughtsync run 3094: two artifacts listed, downloaded and extracted
intact). ^2.3.2 has never been exercised here.
Not v7: that major is a runner requirement rather than a feature change. It
moves to runs.using: node24 and upstream requires runner >= 2.327.1 for it,
which act_runner does not claim to satisfy. Everything pinned stays node20.
ci-requirements.md now carries the version/runtime table and the reasoning,
so the next person matches on the library instead of the tag number.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>