Updates in Outlook appear to have been installed yesterday

[jmt356]

I turned on my laptop this morning and found that Outlook 2016 had been updated without my previous knowledge or permission. The color theme is different and I am constantly being prompted to enter my MS Office email address and password.

However, when I go to Installed Control Panel/Programs/Programs and Features/Updates, I do not see an update for Outlook 2016. Is it possible it could have been updated without leaving a log in Updates?
Is there a way to roll back the update and revert to the version I had installed yesterday?

I am using Version 1912 of MS Office Professional Plus 2016, not Office 365.

[HansV]

The last update for Office 2016 C2R was on January 14 - it is Version 1912 (Build 12325.20298).
The last update for Office 2016 MSI was also on January 14: KB4484221.

Do you see the update in the Reliability History? (To activate this, click the Start button or press the Windows key, then type reliability and press Enter)

[jmt356]

Hans,

I believe I have Office 2016 C2R. About Outlook shows I have Version 1912 (Build 12325.20288), so I guess I don't have the latest build.

Reliability Monitor shows Office 2016 Click-to-Run Extensibility Component and Localization Components successfully reconfigured on 2020.1.17 and on 2020.1.14.

[HansV]

You could try File > Account > Update Options > Update Now to see if the latest version improves things.

[JoeP]

C2R installations update automatically and do not need user permission. You give permission by having updates turned on.