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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.287 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.288 ·

New environment variable forces an early feature-flag refresh in non-interactive runs

Setting CLAUDE_CODE_GROWTHBOOK_KICK_ON_WARM_CACHE makes non-interactive runs refresh feature flags early even with a saved copy

Use it now Notable No documentation found New Features
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What

Claude Code fetches feature flags, settings Anthropic uses to switch features on and off, from a server, and keeps a saved copy between runs. At startup it decides whether to refresh them early. In non-interactive mode, where Claude Code runs a single request without the chat interface, setting CLAUDE_CODE_GROWTHBOOK_KICK_ON_WARM_CACHE now forces that early refresh even when a saved copy exists and the usual check would skip it.

Why

It gives a way to make headless runs pick up current feature flags right away instead of relying on the saved copy.

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Names in the bundleCLAUDE_CODE_GROWTHBOOK_KICK_ON_WARM_CACHE
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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 exactly what the early refresh changes later in the run.
The name it cites is new in this buildNew in this build: CLAUDE_CODE_GROWTHBOOK_KICK_ON_WARM_CACHE

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