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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 v2.1.261 ·

Worker-restart continuity for excludeDynamicSections, with a kill switch

A session setting for excluding dynamic sections now survives a worker restart in headless mode.

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaElsewherewhat it touches
KindImprovementsin v2.1.261,
Under the hood Notable

A session setting for excluding dynamic sections now survives a worker restart in headless mode.

In headless/-p mode, worker-restart handling now restores sessionState's excludeDynamicSections flag from the prior worker epoch's internal metadata (internal.exclude_dynamic_sections), so the setting survives a worker restart. A kill switch can still disable this restoration.

Read from
Names in the bundleexcludeDynamicSections
Feature flag
tengu_ccr_exclude_dynamic_restore_killswitch 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 v2.1.261: 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 v2.1.261. It isn't a statement about your account. What a flag value here can and cannot tell you

Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Confirmed since Anthropic's documentation has since written up excludeDynamicSections, on Claude Code changelog. * Fixed prompt caching and extended thinking breaking mid-session for SDK sessions using `excludeDynamicSections`: the first message is no longer re-rendered each request changelog see the edit
How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up excludeDynamicSections, on Claude Code changelog.
The name it cites is new in this buildNew in this build: tengu_ccr_exclude_dynamic_restore_killswitch

See this entry in the whole of v2.1.261 →

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