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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.288 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.288 ·

Cloud bridge requests check the worker epoch

The /bridge request can now send expected_epoch and handles epoch conflicts, and worker_epoch is described as sent by every claude-code-server worker

Group of 2 Nothing to try yet In Development
JSON All of v2.1.288
Nothing to try yetTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Remote ControlArea: what it touches
In DevelopmentKind: in v2.1.288,
In DevelopmentSection of the release

What

The bridge connects a Claude Code session to a worker running in the cloud. A worker epoch is a number that tells newer workers apart from ones that have been replaced. Before, the /bridge request sent an empty body ({}).

  • The /bridge request can now send expected_epoch.
  • A 409 epoch conflict is handled through onEpochConflict. A 409 is the server's reply when the request clashes with the worker's current state.
  • Connection failures are treated as temporary.
  • A 403 sub_reason is checked to be in snake_case (lowercase words joined by underscores) before it is passed on.
  • The description of the worker_epoch field now says every claude-code-server worker sends it, whatever the tengu_violin_wood flag reads. Before, it said the field was sent only where that flag was on.
  • The register_device_hooks mention is removed from that description.

Why

The bridge can now detect when it is talking to a worker that has been replaced and deal with it, rather than carrying on with an outdated one. The worker epoch is now described as always present, no longer tied to the tengu_violin_wood flag.

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 v2.1.288: 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 v2.1.288. 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 supplies the expected epoch, so when it is actually sent is unknown.

See this entry in the whole of v2.1.288 →

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