I am planning to upgrade hibernate-validator5.2.5 to latest version 6.1.5.
What is the compatible hibernate version?
It should work with any version AFAIK, as long as it’s JPA 2 compatible.
The migration guide will probably be helpful: http://hibernate.org/validator/documentation/migration-guide/ .
I don’t think we have broken any very widespread features but given you’re coming from 5.2, there might be some interesting things in it.