Claude Code v2.1.221 ·
Async sandbox dependency checking
Sandbox startup on Windows no longer blocks while checking dependencies, so it should feel snappier.
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
SandboxArea: what it touches
Internal ChangesKind: in v2.1.221,
Internal ChangesSection of the release
What
The sandbox runtime gained an asynchronous dependency probe used by Windows initialization.
Details
checkDependenciesAsync sits alongside the existing synchronous checkDependencies.- Windows initialization awaits the async provisioning and dependency probes rather than blocking.
- Dependency cache invalidation now bumps a generation counter.
Evidence
checkDependenciesAsync
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
See this entry in the whole of v2.1.221 →