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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 ·

Per-session state moved into state-container objects

Session state variables were gathered into containers so a session resets as a unit.

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

Dozens of module-level variables holding session state were replaced by fields on singleton container objects, so a session's state is now reset as a unit rather than one variable at a time. No behaviour changes.

Details
  • transcript and session state now exposes fields such as the session isolation latch and agent name, and methods including clearInternalEventWriter and setRemoteIngressUrl
  • the old catch-all app-state object was renamed, and its init JSON schema, scheduled-tasks flag and prompt cache allowlist moved to dedicated modules
Evidence

clearInternalEventWriter

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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