MYSQL Patching -Roll back MYSQL patching.

I took all database backups before starting patching.
If we patch mysql 5.6.30 to 5.6.32 and if we want to rollback to 5.6.30 due to some issues. Can we do that? if so should we have to rollback entire server ?Or is there any way just to roll back mysql?
You can have 2 strategies:


Stop MySQL Server and backup (just copy all files to some location) - folder c:/ProgramData/MySQL/data
Make a full dump of all databases 
mysqldump -u root -p --all-databases > c:/backups/all_db.sql


p1 - if You plan rollback exactly for 5.6.30, 

p2 - if You plan go till the win, best to have both.

then You must have old installer for revert back at any time, You can download it from official archive - https://downloads.mysql.com/archives/community/

Then You if You decide revert back:


Uninstall latest MySQL - by windows tools
Install 5.6.30 from previous step
Copy folder c:/ProgramData/Mysql/data saved on previous step
Start MySQL


If You also make a sql dump - You can use normal restore procedure

mysql -u root -p &lt; c:/backups/all_db.sql


, but it work much slower than simple file copy.