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Sweep 12 Nov 2026 · 23:00Z Build v2.1.323 540 read Stable v2.1.311 Latest v2.1.323 Next v2.1.323 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.323 ·

A hidden feature switch was added, off by default

Claude Code now checks a new remotely controlled switch that is off unless switched on from Anthropic's side

Nothing to try yet In Development
JSON All of v2.1.323
Nothing to try yetTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
InternalsArea: what it touches
In DevelopmentKind: in v2.1.323,
In DevelopmentSection of the release

Unclear It is not clear what this switch controls.

What

Claude Code now checks a new feature switch. A feature switch lets Anthropic turn something on or off from its servers without a new release. When the server sends nothing, this one is off.

Why

The switch points to a feature that is in the code but not yet turned on by default.

Read from
Feature flag
tengu_compressed_marshmallow 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 v2.1.323: off

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 v2.1.323. It isn't a statement about your account. What a flag value here can and cannot tell you

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what this switch controls.
The name it cites is new in this buildNew in this build: tengu_compressed_marshmallow

See this entry in the whole of v2.1.323 →

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