Like wikipedia, the Setting, Rules and Notes wiki's track changes made over time to the page. When viewing a page, a button labelled 'Versions' in the top right corner gives access to the list of versions of the page.

You can use the versions list to check who has edited the page and when they were edited, as each change is tracked and listed. For every edit, the list also tracks what changes were made - edits to the content, moving the page, etc - and if the editor left any comments about what they were doing (the Summary when editing a page) it is also displayed here.

If there are a large number of edits, the version list may be paged. In that case, you can browse further back in time at the bottom of the list).