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Sweep 29 Sep 2026 · 18:10Z Build v2.1.285 506 read Stable v2.1.280 Latest v2.1.285 Next v2.1.285 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Last-assistant-requestId lookup now skips API error messages

Request-ID tracking now skips failed API error messages when finding the last assistant reply

Under the hood Bug Fixes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MessagingArea: what it touches
Bug FixesKind: in v2.1.280,
Bug FixesSection of the release
What

The internal helper that looks up the most recent assistant message's requestId now skips over messages flagged as API error messages, only considering genuine assistant replies.

Why

Previously a failed API call could leave behind a message that got picked up as the "last" assistant message, poisoning requestId tracking used elsewhere. Excluding error messages avoids that.

See this entry in the whole of v2.1.280 →

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