Updates after upgrade to 15.3

Hi, I’ve upgraded our servers from 15.2 to 15.3. After the upgrade there are still many updates (200+). Does anyone know why that is?

Perhaps this explains what you’re observing?

https://forums.opensuse.org/showthread.php/558452-upgrading-to-15-3-use-zypper-dup-allow-vendor-change-or-force-resolution-or-none?p=3058202#post3058202

Depends on upgrade method.
With DVD/USB method you get OS with files that contained on a drive.