Using Outlook for Android in business environments for email and scheduling
The version I have is 4.2033.6. I know there are later versions but I can't find the update in the Play Store.
Then why are you complaining about an issue with the Google Play Store on the Microsoft forums?
Google says that the current version is 4.2048
https://play.google.com/store/apps/details?id=com.microsoft.office.outlook