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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 v2.1.221 ·

Extra HTTP/2 GOAWAY shape treated as retryable

One more kind of dropped connection now retries quietly instead of showing you an error.

You'll notice Bug Fixes
JSON All of v2.1.221
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
InternalsArea: what it touches
Bug FixesKind: in v2.1.221,
Bug FixesSection of the release
What

One more form of GOAWAY-related connection failure is now classified as retryable rather than surfacing as a hard error.

Details
  • the http2 error classifier gained a branch for ERR_HTTP2_SESSION_ERROR
  • that branch also matches the message against a regex and checks the stack for a goaway frame
  • sits alongside the existing stream-rejected-by-goaway detection
Evidence

ERR_HTTP2_SESSION_ERROR

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

See this entry in the whole of v2.1.221 →

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