As you know, the Message Center is your one stop shop for knowing what is coming for Office 365 services.
While you have been able to already filter messages from Message Center based on services (Preferences) or by category (changes, prevent issues…), today you are being able to also filter based on tags (admin impact, privacy, feature updates…)
To start using this new filtering option, logon to your Office 365 administration portal (https://admin.microsoft.com/) and reach the HealthMessage Center blade
There on the right side on top of the messages list, click on the Filter button to then select one of the tag available for filtering