hibernate-orm/migration-guide.adoc

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= 6.0 Migration Guide
:toc:
This guide discusses migration from Hibernate ORM version 6.0. For migration from
earlier versions, see any other pertinent migration guides as well.
== Background
== Known changes
=== Type system / custom types
==== Influencing SqlTypeDescriptor to use
Discuss `JdbcTypeCode`, `JdbcType`, `JdbcTypeRegistration`
==== Influencing JavaTypeDescriptor to use
Discuss `@JavaType`, `@JavaTypeRegistration`
==== Component Mapping
Multiple component mappings for the same java class with different property mappings is not supported anymore. Every property mapping combination should have its own java class"
=== SQM
* Functions
* Multi-table bulk manipulation HQL/Criteria query handling