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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 v2.1.239 ·

Ultraplan mode is reported in telemetry and preserved across session state

Ultraplan mode is now recorded in telemetry and survives a session state round trip.

Under the hood Internal Changes
JSON All of v2.1.239
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
PermissionsArea: what it touches
Internal ChangesKind: in v2.1.239,
What probably matters to youSection of the release
What

Permission-mode telemetry now carries an ultraplan flag, and session state sent into Claude Code is parsed for the same flag, so ultraplan survives a state round trip.

Details
  • A new helper derives the reported permission mode and ultraplan flag from the previous and new pair, with a rule that reports on every latch rather than only on the transition into plan mode.
  • The metadata report includes is_ultraplan_mode when set; the inbound parser accepts it as a boolean.
Evidence

is_ultraplan_mode

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

See this entry in the whole of v2.1.239 →

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