diff command allows you to compare changes between your current workspace, branches, commits, or tags.
[paths...] is a file or directory to compare. If omitted, Diversion compares the entire repository.
[--base <ref>] sets the base reference to compare from (branch name, commit ID, or tag). Defaults to the workspace’s base commit.
[--compare <ref>] sets the reference to compare to (branch name, commit ID, or tag). Defaults to the current workspace.
[--name-status] shows only names and status of changed files (A=added, M=modified, D=deleted, R=renamed).
[--color <auto|always|never>] controls color output. Defaults to auto.
For example, to see what changed between two branches:

