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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 v2.1.251 ·

Diagnostics for tunnels that drop mid-transfer

Tunnels that drop mid-transfer now log byte counts and say resets are expected.

You'll notice New Features
JSON All of v2.1.251
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
New FeaturesKind: in v2.1.251,
New FeaturesSection of the release
What

Connections tunnelled through the agent proxy that close partway through an exchange now record how many bytes moved, how many were pending and whether the client was paused, and report a debug message. The troubleshooting notes shown to the agent when a proxy tool call fails now explain that resets and RPC failures mid-transfer are expected once a tunnel is up.

Details
  • Telemetry fires unconditionally on this failure path.
  • The docs point at the recent relay failures list and the proxy status endpoint rather than at retrying.
Evidence

agent_proxy_request_ws_closed_mid_exchange

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

See this entry in the whole of v2.1.251 →

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