0, but I dont think they should be used until you understand how they work and what their limitations are.
I was recently asked to give an introductory talk on some of the new features in C# 6.0 at my local user group (the South Bay .NET User Group). It seemed like a great topic for this blog as well, so here goes
C# is constantly evolving, with many improvements being made over time. The latest version (6.0) has been out since July 2015, and it brings some interesting additions to the language that make coding easier and more enjoyable than ever before
https://t.co/QFvCQzGIhK