You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
VM ModeArea: what it touches
ImprovementsKind: in v2.1.312,
ImprovementsSection of the release
What
A virtual machine, or VM, is a computer that runs in software inside another one. When Claude Code works in VM mode with a copy of your project, it now describes that host using the copy's own details:
Tools, working folder, platform and shell all come from the copy.
Project sync is off, and the folder is marked as a separate copy.
A record of the original platform and folder is kept with it.
Before, the host always used the local tool list and the local project sync settings.
Why
This lets a separate copy of your project be shown as its own machine, so changes made there are not treated as changes to your original folder.