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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.257 ·

New preserved environment variable CLAUDE_CODE_CCR_SURFACE

CLAUDE_CODE_CCR_SURFACE is now preserved and passed through like the existing entrypoint variables.

TierUnder the hoodhow much it should matter to you
Useful3my rating, 1 to 5
Signal4worth watching, 1 to 5
AreaEnvironmentwhat it touches
KindInternal Changesin v2.1.257,
Under the hood Notable No documentation found

CLAUDE_CODE_CCR_SURFACE is now preserved and passed through like the existing entrypoint variables.

A new environment variable, CLAUDE_CODE_CCR_SURFACE, is now preserved and passed through alongside CLAUDE_CODE_ENTRYPOINT and CLAUDE_CODE_IS_COWORK.

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Names in the bundleCLAUDE_CODE_CCR_SURFACE
How sure we are
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this buildNew in this build: CLAUDE_CODE_CCR_SURFACE

See this entry in the whole of v2.1.257 →

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