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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 v2.1.227 ·

Probes report whether old code paths are still reached

One-off counters now show which old code paths are still being used, so they can be removed.

Under the hood Internal Changes
JSON All of v2.1.227
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.227,
Internal ChangesSection of the release
What

Four one-shot telemetry probes now fire the first time a legacy path is hit, to work out what can be deleted. They cover the Co-Authored-By attribution setting, legacy local settings, the legacy progress bridge, an older token-adoption path and legacy plugin tip counts. No user-visible effect.

Details
  • Each probe is deduplicated per call site and can be reset; the token-adoption probe reports the site it fired from, and the plugin tip probe fires once per distinct outcome pair.
Evidence

tengu_dead_probe_include_coauthored_by, tengu_dead_probe_adopt_ticks_token

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

See this entry in the whole of v2.1.227 →

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