Comments - MariaDB - MySQL connection
Content reproduced on this site is the property of its respective owners,
and this content is not reviewed in advance by MariaDB. The views, information and opinions
expressed by this content do not necessarily represent those of MariaDB or any other party.
1) It doesn't quite work like that, there are differences. You can view a list at Incompatibilities and Feature Differences Between MariaDB 10.2 and MySQL 5.7
2) 10.2 is supported until May 2022, see MariaDB general release maintenance periods
3) 10.3 has been stable since 2018, so there are no plans to add new functionality to 10.3.