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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.239

Directory sync gains an "overlay" mode, off unless asked for

Not switched on
Useful1 Signal3
Directory Sync

Directory sync can overlay onto an existing checkout instead of recloning, but every caller leaves it off.

Overlay sync is implemented behind an option defaulting to false that no caller sets.

What

Directory sync can now be told to overlay changes onto an existing worker checkout instead of recloning it. The capability is carried on an options object that defaults to false, and every caller in this build falls back to false, so it is off.

Details
  • When a workspace wants an overlay but the capability is off, sync records dir_sync_overlay_disabled and reports status disabled.
  • The success paths record dir_sync_overlay_recloned and dir_sync_overlaid_head_moved.
Evidence

dir_sync_overlay_disabled

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.239 →