Did you know that you can now use the visual diff tool on any page?
Sometimes, it is hard to see important changes in a wikitext diff. This screenshot of a wikitext diff (click to enlarge) shows that the paragraphs have been rearranged, but it does not highlight the removal of a word or the addition of a new sentence.
If you enable the Beta Feature for "Visual differences", you will have a new option. It will give you a new box at the top of every diff page. This box will let you choose either diff system on any edit.
Click the toggle button to switch between visual and wikitext diffs.
In the visual diff, additions, removals, new links, and formatting changes will be highlighted. Other changes, such as changing the size of an image, are described in notes on the side.
This screenshot shows the same edit as the wikitext diff. The visual diff highlights the removal of one word and the addition of a new sentence.
You can read and help translate the user guide, which has more information about how to use the visual editor.