Your phone says it's updated. Check other settings, too

Phone, Google Pixel and Samsung Galaxy each handle security updates differently, and one screen saying "up to date" may not ...
Techgenyz

WhatsApp Is Blocking Some Logins on Outdated Phone Software – Here’s What Users Should ...

WhatsApp may require some Android and iPhone users to update their OS before login. See WhatsApp requirements, Android 6.0, iOS 15.1 and more.