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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.

All of v2.1.234 Home All releases olderv2.1.233 v2.1.235newer
Claude Code v2.1.234

New setting useAutoModeDuringPlan, on by default

Use it now
Useful4 Signal3
Permissions Notable

Plan mode now uses auto-mode permission rules by default; turn it off in /config under Permissions.

useAutoModeDuringPlan/config
What

Plan mode now applies auto-mode permission semantics whenever auto mode is available. The new boolean useAutoModeDuringPlan appears in /config under Permissions and defaults to true; setting it false in any settings source (policy, command-line flag, user or local settings) wins and turns it off.

Details
  • Changing the setting recomputes the session's tool permission context immediately, so it takes effect without a restart.
Evidence

Whether plan mode uses auto mode semantics when auto mode is available (default: true)

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.234 →