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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 v2.1.224 ·

Concurrent-session pid file can go through the v5 store

Session registration can write its process-id file through the newer store when one is available.

Under the hood Internal Changes
JSON All of v2.1.224
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
InternalsArea: what it touches
Internal ChangesKind: in v2.1.224,
Internal ChangesSection of the release
What

When a storage handle is supplied, session registration writes its process-id file through that store and throws on failure; without one it falls back to writing the file directly to disk as before.

Evidence

v5 pid-file write failed

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

See this entry in the whole of v2.1.224 →

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