The Notebooks Comparison pane lets you compare Notebook checkpoints.
You display the pane by clicking the Compare button anywhere it is visible in the Notebooks pane.
In the Notebooks Comparison pane, select two Notebook checkpoints, then click Compare to see a side-by-side comparison, just like source code.
Differences in code, markdown, output and execution count are highlighted.
Summary information about the differences is displayed at the top of the pane.