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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 v2.1.248 ·

New tengu_violin_pegbox gate layered on top of tengu_violin_wood

Remote sessions started from the desktop app now need a second flag as well.

Nothing to try yet In Development
JSON All of v2.1.248
Nothing to try yetTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SessionsArea: what it touches
In DevelopmentKind: in v2.1.248,
In DevelopmentSection of the release

tengu_violin_pegbox stacks on tengu_violin_wood; both fall back to false.

What

A second feature flag now applies to remote sessions started from the Claude desktop app. Where the entrypoint is remote_desktop, the remote feature set requires both tengu_violin_pegbox and tengu_violin_wood; everywhere else tengu_violin_wood alone still decides. Both flags compile in with a fallback of false, so without server-side values the feature is off.

Details
  • There is a matching asynchronous check, and a helper that reports which flag name a decision should be attributed to, naming pegbox only on the desktop entrypoint with wood already on.
  • Which user-facing capability this tengu_violin_* family covers is not determinable from the shipped code; the call sites are minified.
Evidence

tengu_violin_pegbox

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

Read from
Feature flag
tengu_violin_wood 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 v2.1.248: off

Read once, for one account on one subscription tier, against v2.1.248. 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 nothing at all, having stopped carrying it for tengu_violin_pegbox, 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 on for tengu_violin_pegbox, 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 off for tengu_violin_pegbox, 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_violin_pegbox, 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 v2.1.248 →

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