Prism library upgrade from .NET Framework ro .NET8 for WPF

[SinojRaphel-eaton]

I'm using dll's of Prism as shown in attachment for WPF application. for region management, event aggregation, navigation and using MEF for module loading. Currently application is in .NETFramework 4.8.

I'm planning to migrate to .NET 8.
Is it mandatory to update all the dll's mentioned in the attached image. If yes which are the packages needs for the same and will it be licensed.

[brianlagunas]

Those assemblies do not exist anymore. They can be deleted after the upgrade.