It's not too a much radical upgrade like the version number sounds to be:
https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html
The more important features are that from now on the default Character Set is utf8mb4 (was latin1) and there is a better JSON support.
https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html
The more important features are that from now on the default Character Set is utf8mb4 (was latin1) and there is a better JSON support.