Microsoft recently announced at Build 2019 that the next major version of .NET will unify both .NET Core 3.* and .NET Framework 4.* into a single .NET platform, which the ma
Since.Net don't have all functionalities as .net classic did. You can any DLL from classic to a newer version, infant I've also used libraries from VB in C# and vice versa.
There is one problem though, as long as libraries don't call any unsupported API or APIs that have ended support or have been closed will be a problem.