Upgrade of flowable engine from 6.6.0 to 6.8.0

Hello,

I plan to upgrade my current application which dependes on the flowable-spring-boot-starter-rest library version 6.6.0.

My database is a mariadb version 10.3

Are there any special issues which I should be aware of and test after the upgrade ?

Normally not, especially not if you’re using the auto-upgrade of the db schema.
But, as with any upgrade, always make sure to make a backup of the database before doing the upgrade.