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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.280 ·

A 'chained' directory-sync mode exists, gated by an undocumented env var

A new 'chained' directory-sync mode exists behind an undocumented CLAUDE_CODE_DIR_SYNC_CHAIN env var

Use it now Notable No documentation found New Features
JSON All of v2.1.280
Use it nowTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Directory SyncArea: what it touches
New FeaturesKind: in v2.1.280,
What probably matters to youSection of the release
What

The engine that keeps directories in sync now has a chained mode. It stays off unless an environment variable called CLAUDE_CODE_DIR_SYNC_CHAIN is set to exactly true.

Why

Since this isn't documented and requires manually setting an environment variable, most users won't encounter it. It appears to be an internal or experimental switch rather than a supported option.

Read from
Names in the bundleCLAUDE_CODE_DIR_SYNC_CHAIN
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 doubtThe finding does not say what directory-sync 'chained' mode actually does differently, or who it is intended for.
The name it cites is new in this buildNew in this build: CLAUDE_CODE_DIR_SYNC_CHAIN

See this entry in the whole of v2.1.280 →

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