Because wikis are Git repositories, every change you make is a commit that you can view.

  1. On GitHub, navigate to the main page of the repository.

  2. Under your repository name, click Wiki. Wiki menu link

  3. Using the wiki sidebar, navigate to the page whose history you want to view.

  4. At the top of the wiki, click the revision link. Wiki revision link

Wiki history table

The wiki history table provides some useful information about changes made to a particular page:

  • The user who made the change
  • The commit message they provided
  • When the change was made

Viewing previous content

On the wiki history table, you can click a SHA-1 hash (the sequence of letters and numbers to the far right) to see a wiki page as it existed at a particular point in time.

Wiki SHA number

Comparing two revisions

  1. Select two rows that you want to compare.
  2. At the top of the history table, click Compare Revisions. Wiki compare revisions button
  3. You'll see a diff of the changes showing which lines were added, removed, and modified.

Reverting previous changes

Note that you can only revert changes if you have access to edit the wiki.

  1. Select a row that you want to revert.
  2. At the top of the history table, click Compare Revisions. Wiki compare revisions button
  3. You'll see a diff of the changes showing which lines were added, removed, and modified. Wiki revision diff
  4. To revert the newer changes, click Revert Changes. Wiki revert changes button