Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SandboxArea: what it touches
Internal ChangesKind: in v2.1.300,
Internal ChangesSection of the release
Unclear What sets this reason and what it changes for a session is not stated.
What
Claude Code's startup now passes a new value into the interactive session: a reason for a sandbox virtual machine to stay running. A sandbox is a walled-off space where commands run apart from the rest of your computer.
Why
This suggests work on a sandbox feature that runs in a virtual machine. Nothing visible changes yet.
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 doubtWhat sets this reason and what it changes for a session is not stated.
