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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.259 ·

Turn-attribution metadata added to background/notification message sends

Background and notification sends now carry turn attribution so the system knows which turn they belong to.

Group of 2 Under the hood No documentation found Internal Changes
JSON All of v2.1.259
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Terminal UIArea: what it touches
Internal ChangesKind: in v2.1.259,
Internal ChangesSection of the release

Internal message-send call sites (task notifications, hook stop messages, WebSocket housekeeping messages) now pass a turnAttribution value of "inherit" or "none", and a new helper resolves turnAttributionKey for task-notification mode. The task-notification enqueue path also gained a second options argument carrying turnAttribution, with the ultrareview-failed notification explicitly passing { turnAttribution: "inherit" }. This is internal bookkeeping to track which conversational turn a background message belongs to.

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Names in the bundleturnAttribution

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