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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 v2.1.240 ·

Saving a default effort level can now scope it to one model

Your saved default effort could apply per model instead of everywhere, but that is off.

Nothing to try yet Notable In Development
JSON All of v2.1.240
Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Effort LevelsArea: what it touches
In DevelopmentKind: in v2.1.240,
What probably matters to youSection of the release

Per-model effort defaults are implemented behind the tengu_russet_plover gate; with it off you still get one global setting.

What

Previously, saving a default effort wrote both a global setting and a per-model one. With the tengu_russet_plover gate on, it now writes only the per-model entry, so the default applies to the model you are using rather than everything. With the gate off, which is the built-in default, it writes only the global setting.

Details
  • The gate is remote, tengu_russet_plover, fallback off.
  • Model names that would collide with built-in JavaScript object property names also fall back to the global-only write.
Evidence

{ effortLevel: t, modelSettings: { [r]: { effortLevel: t } } }

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

Read from
Feature flag
tengu_russet_plover Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.240: off

Read once, for one account on one subscription tier, against v2.1.240. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns on for tengu_russet_plover, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns nothing at all, having stopped carrying it for tengu_russet_plover, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

See this entry in the whole of v2.1.240 →

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