We’ve always been vigilant about keeping your data backed up and up-to-date. You deserve to have that kind of control, too.
That’s why there’s Post Revisions, which keeps a copy of the post or page you’re editing each time you save it. Even cooler, it allows you to look back at the five most recent saved changes and revert to an earlier version if you need to.
Post Revisions originated as a plugin called blicki by Ryan Boren. We improved the code and user experience for inclusion in WordPress 2.6, and have now enabled it for everyone on WordPress.com.
Post Revisions improves several things in WordPress…
Multi-author blogs: You can see who made changes to posts, and when.
Undo: If you accidentally delete a paragraph and then hit the save button, don’t worry! That old information is still there for you to reference or revert to.
Autosave: Autosave is now enabled for all posts and pages, not just drafts.
And it’s got pretty colors, too.
To try out Post Revisions, select a revision date in the Post Revisions section under the text editor. Select another date in the revisions list, click Compare Revisions, and you can check out the two versions of your post side by side, with changes clearly highlighted.
If you like what you see in a prior post better, just click Restore for that date and the post is reverted back (with a new version stored next time you save, of course).