Follow Discord
Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeReleasesv2.1.299entry #73

Claude Code v2.1.299 ·

Folders added during a session are kept out of sandboxed shell commands

Adding a folder mid-session now rebuilds the sandbox so shell commands stay out of it, with clear errors when that cannot be done

You'll notice Improvements
JSON All of v2.1.299
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SandboxArea: what it touches
ImprovementsKind: in v2.1.299,
ImprovementsSection of the release

Unclear Which command or action adds a folder this way is not stated.

What

The sandbox limits what shell commands Claude runs can reach. Claude Code can now add a folder to a session and rebuild the sandbox so shell commands stay out of that folder. It fails with a clear error in two cases:

  • the sandbox could not be rebuilt
  • on Windows, the sandbox had already started, because there it cannot keep shell commands out of a folder added later
Why

If you use sandboxing and add a folder partway through a session, you may now see one of these errors.

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 doubtWhich command or action adds a folder this way is not stated.

See this entry in the whole of v2.1.299 →

Feedback