Microsoft released Office version 2209 (Build 15629.20058) in Current Channel for Windows users. This is quite a small release as it contains only one new feature for Outlook, no other changes, bug fixes and performance improvements.
After installing Office Version 2209 (Build 15629.20058), administrators will be able to configure label settings to add three new S/MIME options, including encrypt, sign, and encrypt and sign, to email messages in Outlook for Windows. It is now possible to configure these labels and add S/MIME options to the Sensitivity drop-down menu, making it easier for administrators to access these labels to encrypt and sign their emails. You can read the full official changelog below to learn more regarding the feature.
Changelog
Microsoft is currently testing these changes with Office Insiders, so the general public may not see them at this time. The good news is that they will eventually be available to all Office users. Meanwhile, Beta Channel Insiders on Windows will receive another new version of Office next Friday, and we hope the company introduces some exciting new features with the latest update.
To update Microsoft Office Insider Preview Build to the latest version, open any Office program and go to File > Account > Update Options > Update Now.