What I need to do to downgrade mysql from 5.7 to 5.6?

Webmin
1

I have a clean mysql database.
What I need to do to downgrade mysql from 5.7 to 5.6?
Any config I need to do in webmin?

2

BACKUP / DUMP databases all.
DEINSTALL and new install older version with after that restore Databases.

All thing of virtualmin webmin postfix and co i don’t know, so please is only then normal way / advice.

TAKE CARE OF WORKING BACKUPS and RESTORE possibylities.

CHECK working backup before unstall that they are working and complete!

IF EMPTY / none not important own and custommer databases take care of backup parts for virtualmin / webmin i guess.

POSTINSTALL option in virtualmin / webmin should take care of some i hope after dowgrade