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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 v2.1.248 ·

Cross-session inbox carries the sender's process start token

Messages from your other sessions now identify the exact process run, not just the pid.

Under the hood Internal Changes
JSON All of v2.1.248
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Cross-Session MessagingArea: what it touches
Internal ChangesKind: in v2.1.248,
Internal ChangesSection of the release
What

Messages arriving over the local cross-session socket now record a verified process start value along with the sender's pid, so the origin identifies a specific process run rather than just a pid.

Details
  • The connection handler resolves the peer token once per connection and reuses the token read during setup when the pid matches, instead of re-reading it per message.
Evidence

verifiedPeerProcStart

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

See this entry in the whole of v2.1.248 →

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