The diff panel's fullscreen-vs-inline display logic was simplified into a single shared check
The /diff slash command's description and its immediate-display behavior now both rely on a single helper function that checks whether the current presentation mode is "fullscreen", replacing three separate condition checks that existed before. A related, unused code branch for rendering the diff panel in fullscreen mode was also removed from an unrelated part of the code.
This is an internal cleanup that makes the fullscreen-versus-inline decision for the diff panel consistent in one place; it isn't expected to change what you see when running /diff.
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Also this week: on Pro and Max plans, **computer use in the Desktop app** works in the background on macOS while you keep working; in fullscreen rendering, **`/diff`** opens a live panel beside the conversation that refreshes as Claude edi…whats-new/index see the edit
Anthropic's documentation has since written up /diff, on What's new.