The macOS publish matrix had each arch run electron-builder with
--publish always, so each runner uploaded its own latest-mac.yml to the
GitHub release the moment it finished. The slower arch clobbered the
faster one, leaving a window (typically 1-3 minutes) where the live
manifest contained only one arch's files[]. Apple Silicon clients
polling during that window could install the x64 build, ending up
under Rosetta.
Also closed the related window where finalize-rollout stamped
releaseDate and rolloutHours after the merged manifest was already
public — auto-updater treats missing rollout fields as "admit", so 100%
of stable users could grab a release before staged rollout kicked in.
Now every build runs --publish never. Each platform job uploads its
non-yml artifacts directly via gh release upload --clobber, and stages
its manifest as an Actions artifact. The renamed finalize-rollout job
downloads all manifest artifacts, merges mac arm64+x64, stamps rollout
metadata, validates, and uploads every manifest in one pass. Public
manifests are never visible in an unmerged or unstamped state.
Refs #555.
Mohamed Boudra
4853433ad7