This is more of a .NET Core question, than nopCommerce... but here goes:
I was wondering how would one convert a class library (plugin) project from nop 3.90 to nop 4.0... I saw that in nopCommerce 4.0 Solution, the old plugins (for example Nop.Plugin.Payments.CheckMoneyOrder) are still targeting .NET Framework 4.6.1, so I suppose they were not re-created as .NET Core class libraries, but somehow converted - they "look" as .NET Core class libraries meaning they are missing the web.config file, the packages.config file... the "References" node is missing, and instead we now have the "Dependencies" node.
But when I add a plugin from a nop 3.90 solution, to the new .NET Core solution, I still have the web.config and packages config, of course, as well as the References node... so not sure how to do that conversion.
Any tips ?