What
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.
Why
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.
Names in the bundle/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.
Added since
A small documentation edit on Fullscreen rendering touched a line naming /diff after this was published.
In fullscreen rendering, [`/diff`](/docs/en/interactive-mode#review-changes-with-%2Fdiff) opens a panel beside the conversation, so you can watch the changes accumulate while Claude works. [Diff panel](/docs/en/interactive-mode#diff-panel)…fullscreen see the edit
Confirmed since
Anthropic's documentation has since written up /diff, on What's new.
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
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up /diff, on What's new.