The new OneDrive offline mode will let users of the web side of the service open files that have been marked available as offline and navigate to favorite files and the home section of OneDrive without an internet connection. You can also rename, sort, move, and copy files, and these will all be synced up once you have an internet connection again.

Rolling out to Microsoft 365 work and school accounts, the new feature will let you use your files in OneDrive for the web even if you're offline.

And no, the catch isn't that we'll see adverts in the Start menu telling us about this - it's actually that it's just a limited rollout to certain users.

Microsoft has begun rolling out new capabilities of OneDrive for Web, including an offline mode designed to offer access and improved performance whether users are connected to the Internet or not.

Offline mode in the OneDrive web app will roll out gradually to users with work and school accounts. The feature currently only supports Chromium-based browsers, and there’s a per-device setting to enable or disable it in the upper right corner of the page. You can learn more information about how to get started on this support page.