A Rollup Update has been released for Outlook 2016. This is a non-security update which contains 9 documented improvements and fixes.
Most notable fixes are:
- Adds “Defenders of Ukraine Day” to the Outlook holiday list for Ukraine.
- Online archive and public folders may disappear for a profile.
- Outlook immediately deletes or duplicates email messages for POP3 accounts regardless of email settings (this issue was solved for Office 365 subscribers in March).
Note: This update can be installed via Microsoft Update or the Update Now button when you are using Office 365 and updates Outlook to version 16.0.4378.1000 (msi-based installation) or 16.0.6769.2040 (Office 365 based installation).