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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

New telemetry: boot_reused on artifact file list event

Artifact file list telemetry now records boot_reused, whether the session's boot artifact was reused

Under the hood Internal Changes
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
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release
What

The artifact_file_list telemetry event now includes a boot_reused true/false field, indicating whether the underlying boot or session artifact was reused from an existing one rather than freshly created.

Why

This is diagnostic telemetry that helps distinguish sessions that reused existing setup from ones that started fresh, without changing anything a reader interacts with directly.

See this entry in the whole of v2.1.280 →

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