Claude Code v2.1.260 · 3 Sep 2026
A new default-on internal flag was added with an unclear purpose.
Under the hood
Nothing to try yet No documentation found Internal Changes
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All of v2.1.260
Under the hood Tier: how much it should matter to you
1 Useful: my rating, 1 to 5
1 Signal: worth watching, 1 to 5
Feature Gates Area: what it touches
Internal Changes Kind: in v2.1.260, 03 Sep 26
Internal Changes Section of the release
Read from
Feature flag
tengu_gravel_chorus Not enough to say
Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.260: on
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.
Read once, for one account on one subscription tier, against v2.1.260. It isn't a statement about your account. What a flag value here can and cannot tell you
How sure we are
One source agrees One thing we can check says the same as this entry.
The name it cites is new in this build New in this build: tengu_gravel_chorus
See this entry in the whole of v2.1.260 →
3 Sep 2026 · 383 entries, this one is #287.
55 151 34 143
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Is this right?
0 0 Feedback
What's wrong with this entry?
Hard to understand Too vague Looks wrong Not relevant to me Too long Missing the detail I wanted Duplicate of another card
Clear Learned something new I can act on this Good catch
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.
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New unrecognized-model telemetry on /model switch
Under the hood Models
In v2.1.260 Internal Changes release-page order
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New gate replaces hardcoded-off feature switch
Under the hood Feature Gates
