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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 ·

Background loading at startup works slightly differently

Claude Code changed how it decides on and runs the background loading it does when it starts

Under the hood Internal Changes
JSON All of v2.1.288
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.288,
Internal ChangesSection of the release
What

Claude Code changed how it handles the work it loads in the background when it starts up. An extra step now runs just before it decides whether to do that loading, and the loading itself is now wrapped in another step. The delay setting that can slow this loading still falls back to 0, meaning no delay, when nothing is sent from the server.

Why

This may change what Claude Code does in the background as it starts.

Read from
Feature flag
tengu_cicada_nap_ms 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 v2.1.288: not a boolean we can read

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 doubtWhat the new step and the wrapper actually do is not clear.

See this entry in the whole of v2.1.288 →

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