JSPWiki by default displays content differences between page versions line-by-line. This is often not fine-grained enough to easily identify specific changes—especially in longer pages with lots of content.
In JSPWiki this setting is known as the difference provider. You can configure alternative difference providers, one of which is the ContextualDiffProvider. The ContextualDiffProvider enables displaying of page version differences on a word-by-word basis.
Here's an example of page differences with the default TraditionalDiffProvider enabled:
Note that while only one word and one character has changed, the entire sentence is highlighted. For comparison here are the same changes with the ContextualDiffProvider enabled:
Clicking on the blue highlighted double arrows to the left or right of a change will jump to the previous or next change respectively: