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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.281 ·

Context-usage estimate passes after_boundary

A late end-of-turn context-usage estimate is now applied with an after_boundary marker

Under the hood Internal Changes
JSON All of v2.1.281
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.281,
Internal ChangesSection of the release
What

At the end of each turn Claude Code estimates how much of the conversation's space is used. When that estimate takes longer than its time limit, the late result is now applied with an after_boundary marker. The debug message about the slow estimate is unchanged.

Why

A slow estimate is now handled differently when it finally arrives.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding does not say what `after_boundary` changes about how the late estimate is used.

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