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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 ·

Background-session rendezvous server rebuilt as an object

The socket background sessions connect through is now created per start rather than shared.

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
2Signal: worth watching, 1 to 5
SessionsArea: what it touches
Internal ChangesKind: in v2.1.227,
Internal ChangesSection of the release
What

The socket that background sessions connect through, including its authentication handshake, 30-second heartbeat, attacher caps, startup watchdog and prompt-draft restore, moved from module-level state into an object created per start, and its job-state reads and writes now take a storage backend. Behaviour, including the accounting of unauthenticated drops, is unchanged.

Evidence

[bg-rv] dropped

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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