One small change that comes with C# 7.2 is support for non-trailing named arguments in method calls. This post explains what are non-trailing named arguments, how to use them and how they look after compiling.
C# 7.2 introduces new access modifier – protected private. It targets developers who are responsible for class libraries and API-s design and who need also consistent design for internals of class libraries. This blog post shows how protected private access modifier works.