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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.221 ·

Four dead-code probes deleted along with the legacy paths they measured

Very old config files with legacy updater values now migrate to an unknown install method.

You'll notice No documentation found Removed
JSON All of v2.1.221
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
RemovedKind: in v2.1.221,
RemovedSection of the release
What

The probes that measured whether legacy shapes were still reached are gone, and so are the fallbacks they covered.

Details
  • env_manager_log no longer accepts a flat message field
  • the global-config env probe is removed
  • the background attach probe is removed; the no-control-key path still logs a warning and is still allowed
  • config migration no longer maps autoUpdaterStatus "installed", "no_permissions" or "not_configured" onto install methods, so very old configs with those values now migrate to an unknown install method
Evidence

tengu_dead_probe_autoupdater_status

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

Read from
Names in the bundleautoUpdaterStatus

See this entry in the whole of v2.1.221 →

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