Over time, software evolves and it is important to stay up to date if you want to benefit from new features and performance improvements.  Database engines follow the exact same logic and providers are always careful to provide an easy upgrade path. With MySQL, the mysql_upgrade tool serves that purpose. A database upgrade process becomes [&]

https://www.percona.com/blog/2019/03/05/how-to-upgrade-amazon-aurora-mysql-from-5-6-to-5-7/