chore(release): v0.60.4 - #489
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…eady gone (#490) ## Problem `windows-claim-test` flakes intermittently (last seen blocking release PR #489): `TestMoveNewToCurConcurrentClaimsSingleWinner` fails with `remove duplicate claim source ... Access is denied`. Concurrent claimants race their POSIX-semantics disposition sets on the same source file; the loser of that inner race can observe a hostile NT status even though the name is already gone and its removal goal is met. ## Fix Verify-then-benign at both `removeClaimSource` sites in `claimRename`: on a removal error outside `claimTransitionAlreadyDone`, re-inspect the source name through the pinned root. Proven absence keeps the existing contracts (winner → `nil`, residue loser → `os.ErrNotExist`); a present name — including out-of-contract recreation — or an uninspectable state stays loud, with the removal and recheck causes joined. `STATUS_ACCESS_DENIED` is never blanket-benign, so real DELETE-access failures still fail. Unix untouched. ## Tests Deterministic Windows regression tests recreate the exact race via the production POSIX disposition primitive on an independent handle (`os.Remove` cannot stand in — it is classic `DeleteFile` delete-on-close in Go 1.25): winner-benign, residue-loser-benign, and loud negatives at both sites proving present-name failures are not masked. The concurrent stress test remains as integration evidence. ## Review Design + two staged-snapshot reviews by codex via AMQ; approved on the exact committed snapshot (`ebcdd19d…`), including independent windows vet/compile evidence. Merge held until the real `windows-claim-test` job is green. 🤖 Generated with [Claude Code](https://claude.com/claude-code) https://claude.ai/code/session_01N17nDzcBQEbWpboBLTTyRn Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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🤖 I have created a release beep boop
0.60.4 (2026-08-12)
Bug Fixes
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