Looking back at how HN and r/programming reacted to recent versions of C# the common complaints are that the language is becoming too complex and that it is hard to keep up with new features.

The language has gotten a lot of new features but it is surprisingly viable to keep coding like it's 2012 when C# 5.0 came out with async/await support.

It is also surprisingly viable for most C# programmers to not keep up with new language feature. Most are using ReSharper or Rider that will introduce useful new language features as a refactoring suggestion that is one shortcut away.