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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 v2.1.227 ·

Runner prewarm and prefetch markers are read from disk

Remote runners read marker files to report whether prewarm and prefetch finished, yielded or timed out.

Under the hood Internal Changes
JSON All of v2.1.227
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SessionsArea: what it touches
Internal ChangesKind: in v2.1.227,
Internal ChangesSection of the release
What

On remote runners, small marker files in /tmp written by the runner are parsed into outcomes: done, yielded, aborted or timeout, with elapsed seconds, plus a prefetch state file giving phase, run counts, age of the last success and an index. Reads do not follow symlinks, do not block, and stop at 4KB; a missing file reports absent. A timer for runner prep steps was added too.

Evidence

ccr-byoc-prewarm-vda.done

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

See this entry in the whole of v2.1.227 →

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