Activate MySQL 5.7 after upgrading to v70.0.12

Hello, I have updated my WHM/cPanel to v70.0.12 from v68.0.29. Now please let me know how can i enable MySQL 5.7 and activate it ? I am still seeing MariaDB as my default database after updating WHM/cPanel to v70.0.12. Also, if I enable MySQL 5.7, can i migrate cPanels from another server which is running v68.0.29? Thank you for your time.