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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.309 ·

A new remote switch appears and an SDK upgrade guide may be gone

A new remote switch, off by default, appears where a bundled SDK upgrade guide used to be

Nothing to try yet In Development
JSON All of v2.1.309
Nothing to try yetTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
InternalsArea: what it touches
In DevelopmentKind: in v2.1.309,
In DevelopmentSection of the release

Unclear What the new switch controls is not known.

What

A remote switch named tengu_eager_raccoon now appears in Claude Code, at the spot where a bundled SDK upgrade guide file used to be listed. It is off unless switched on remotely, and the flag server returned off for this site's account and for an anonymous check.

Why

The SDK upgrade guide file may no longer ship with Claude Code.

Read from
Feature flag
tengu_eager_raccoon 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 v2.1.309: 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 v2.1.309. 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 doubtWhat the new switch controls is not known.

See this entry in the whole of v2.1.309 →

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