C# 7.0 is the seventh version of C#. This version contains some new features: language support for Tuples, local functions,
out var declarations, digit separators, binary literals, pattern matching, throw expressions,
ref return and
ref local and extended expression bodied members list.
Official reference: What's new in C# 7
After MySQL 5.7, when we install MySQL sometimes we don't need to create a root account or give a root password. By default when we start the server, the default password is stored in the
mysqld.log file. We need to login in to the system using that password and we need to change it.