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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 v2.1.309 ·

Cloud sessions can send fewer upload requests to the server

Cloud sessions can now attach delivery receipts to event uploads and drop repeated rate-limit notices, when the server's settings allow

Under the hood Internal Changes
JSON All of v2.1.309
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Cloud SessionsArea: what it touches
Internal ChangesKind: in v2.1.309,
Internal ChangesSection of the release
What

A cloud session (a Claude Code session running on a remote machine) regularly uploads a record of what happens to the server. Two changes reduce that traffic:

  • Receipts confirming that messages were processed can now ride along with the regular event upload instead of only being sent separately. If the server refuses them, Claude Code resends the upload without them and stops attaching receipts for the rest of the session.
  • Repeated notices saying a request was within the rate limit can be dropped before upload.

Both depend on settings the server sends.

Why

Remote sessions make fewer requests and upload less repeated noise.

See this entry in the whole of v2.1.309 →

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