Microsoft has released a new March 2021 update for those in the Insider Program for Office for Windows.
Office for Windows Current Channel (Preview) Version 2103 (Build 13901.20148) is available for download and allows users to AutoSave and co-authored documents that are encrypted with sensitivity labels in real time just like unencrypted documents.
Changelog | Version 2103 (Build 13901.20148)
Excel, PowerPoint, Word
AutoSave and coauthoring on sensitive encrypted documents
Don’t trade off productivity for security. With Microsoft Information Protection, documents that are encrypted with sensitivity labels can now be AutoSaved and co-authored with others in real time just like unencrypted documents can. Requires tenant opt-in.
Word
Dark Mode for Word documents
Dark Mode may help reduce eye strain and accommodate light sensitivity while working on your documents.
Outlook
New conference room and workspace booking experience
The conference room booking experience has been refreshed, and with it we’ve added capabilities to allow you to schedule individual workspaces as well.
Visio
Office icons have a new look
The product icons have been redesigned to reflect simple, powerful, and intelligent Office experiences.
 March 11, 2021 | Version 2103 (Build 13901.20148). Download.){kind=link}