What do you guys think would be the advantages of upgrading the framework, what all libraries, frameworks could we use potentially in the Game dev environment.
That’s a strange question, given that Unity actually uses Mono.
Basically, everything that’s happened in the last 10 years. Unity is effectively limited to 3.5 compatibility, which was released in 2007 and end of life in 2011. Since then there have been multiple improvements in C#, many new useful classes, the CLR 4, six releases of Visual Studio, Windows 8 and 10, etc, etc.
Way overdue in my opinion.