It seem to imply creating new structures in files. You will need the upgrade_mysql or similar script for doing so, odds are low that it will happen keeping the

It seem to imply creating new structures in files. You will need the upgrade_mysql or similar script for doing so, odds are low that it will happen keeping the same version number. There are also too many things in this version that are incompatible changes that requires upgrading the db, doing a small patch to upgrade individual feature could complicate things when comes the time to upgrade to 5.7+.