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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 v2.1.221 ·

Spare background job is rebooted when defaults change

Fixes background jobs starting with stale settings by rebooting the pre-warmed spare when defaults change.

You'll notice Internal Changes
JSON All of v2.1.221
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
SessionsArea: what it touches
Internal ChangesKind: in v2.1.221,
Internal ChangesSection of the release
What

A pre-warmed spare job is no longer reused when it was started with different defaults from the ones now requested.

Details
  • the spare's defaults are compared to the requested ones before reuse
  • on mismatch the spare is torn down and defaults_mismatch_reboot is recorded under job_spare_ensure
Evidence

defaults_mismatch_reboot

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

See this entry in the whole of v2.1.221 →

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