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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.275 ·

Poll event 'kind' now format-validated and per-kind size-capped, wording of reserved-kind error changed

Poll events now validate their 'kind' field format, cap size per kind, and can carry media

Under the hood Internal Changes
JSON All of v2.1.275
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Poll EventsArea: what it touches
Internal ChangesKind: in v2.1.275,
Internal ChangesSection of the release
What

Internal poll events (used for delivering updates) now have stricter validation on their kind field:

  • kind must match a pattern of a lowercase letter followed by lowercase letters, digits, or hyphens, up to 64 characters, and events that don't match are rejected with a new error message
  • the maximum envelope size is now looked up per kind instead of using one fixed limit for all events
  • the error message shown when a reserved kind is used has changed wording, now referring to a "trusted in-process producer" instead of a "server-authored producer"
  • poll events can now optionally carry a media field
Why

The stricter format check and per-kind size limits make poll event handling more precise and harder to misuse, and the new media field lays groundwork for events to carry attachments.

See this entry in the whole of v2.1.275 →

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