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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.288 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.288 ·

Turn timing now notes the slowest step gathering attachments

Claude Code's timing of the start of a turn now records the slowest attachment step, its resource use, and changed files reread

Under the hood Internal Changes
JSON All of v2.1.288
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.288,
Internal ChangesSection of the release
What

When it times the start of a turn, Claude Code now also records which step that gathers attachments for the message was slowest, how much processor time and memory activity it used, and how many changed files were read again.

Why

This adds detail for working out why a turn is slow to start.

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 doubtWhere these timings are reported is not known.

See this entry in the whole of v2.1.288 →

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