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Sweep 03 Oct 2026 · 20:28Z Build v2.1.289 510 read Stable v2.1.285 Latest v2.1.289 Next v2.1.289 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.289 ·

A new remote feature switch with no visible purpose yet

Claude Code has a new remotely controlled switch that counts as on when the server sends no value, and nothing yet shows what it controls

Under the hood Internal Changes
JSON All of v2.1.289
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.289,
Internal ChangesSection of the release
What

Claude Code checks a new remotely controlled switch named tengu_fresh_heron. The code treats it as on unless the server answers with exactly false. Nothing in this release shows what the switch turns on or off.

Why

The switch has no visible effect on its own. It matters only once something is found that depends on it.

Read from
Feature flag
tengu_fresh_heron 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 v2.1.289: 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 v2.1.289. 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 this switch controls is not known.
The name it cites is new in this buildNew in this build: tengu_fresh_heron

See this entry in the whole of v2.1.289 →

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