The easiest way to compare two revisions of a file is to drag-and-drop one revision onto another from the History tab for a file, as shown here:
In the preceding example, I have clicked on revision
75 of the file
RELNOTES and am about to drop it on to revision
If I complete the drop, then P4V runs the diff tool P4Merge on those 2 revisions.
This is the built-in diff tool which is installed with P4V. Following on from the previous section we can see an example diff:
The title bar ...