As I've previously written in one of my post-Ignite posts Ignite 2017 OneDrive News Microsoft has just started rolling out this feature as promised:
Files Restore is a complete self-service recovery solution that allows administrators and end users to restore files from any point in time during the last 30 days. If a user suspects their files have been compromised, they can investigate file changes and allow content owners to go back in time to any second in the last 30 days. Now your users and your administrators can rewind changes using activity data to find the exact moment to revert to.
To use the feature all you need to do is to go to Settings -> Restore OneDrive. The user then get's a full list (with a Timeline) with all the recent changes and the option to "rewind" their files.
Go check if you have gotten it :)