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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.248 ·

Stale background worker rosters no longer trigger upgrade respawns

A returning background supervisor ignores stale worker lists instead of respawning them.

Under the hood Improvements
JSON All of v2.1.248
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Background DaemonArea: what it touches
ImprovementsKind: in v2.1.248,
ImprovementsSection of the release
What

When the background supervisor comes back after being down, it checks how old the previous list of workers is. If it is old, it skips the pending upgrade respawns for those workers, and they no longer count toward the "all workers dead" health verdict.

Details
  • The adopt log line reports the roster's age in days and how many respawns were skipped.
  • Settling a worker can now come back as dead-epoch, and the adoption telemetry event gained dead-epoch and upgrade-skipped counters.
Evidence

upgrade_skipped=${me} (previous roster written ${Math.round((Date.now() - M.updatedAt) / 86400000)}d ago)

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.248 →

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