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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.221 3 Aug 2026

Daemon-boot gesture telemetry gets more fields

Under the hood

Useful1 Signal0

Sessions

Reconnect telemetry now records more detail about how your session came back up.

What

Reattach and reconnect telemetry carries more context about how the session came up.

Details

Events now include t0, surface, daemonBooted and interactive alongside gestureId and attempt.
Daemon-start calls pass an onStarting callback that marks the gesture as having booted the daemon.

Evidence

daemonBooted

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.221 →