Recipes to migrate to Hibernate 6.6

[timtebeek]

What problem are you trying to solve?

Allow folks to migrate to Hibernate 6.6, as 6.5 is out of support.

What precondition(s) should be checked before applying this recipe?

Hibernate 6.6 is compatible with these versions, so possibly these could be influence preconditions.

Java	11, 17, 21, 22 or 23
Jakarta Persistence	3.1
Jakarta EE	10

Necessary migration steps

As per https://docs.jboss.org/hibernate/orm/6.6/migration-guide/migration-guide.html

• Oracle implicit array types
• Changes to UserDefinedType
• Subset check for arrays to use array_includes
• Merge versioned entity when row is deleted
• Explicit validation of annotated class types
• Discriminator-based embeddable inheritance
• H2 database and bulk mutation strategy
• Criteria: jakarta.persistence.criteria.Expression#as(Class)
• @Table and SINGLE_TABLE inheritance

Any additional context

https://hibernate.org/orm/releases/6.5/
https://hibernate.org/orm/releases/6.6/