Sourced from org.hibernate.orm:hibernate-core's releases.

Release 6.6.37

Hibernate ORM 6.6.37.Final released

Today, we published a new release of Hibernate ORM 6.6: 6.6.37.Final.

You can find the full list of 6.6.37.Final changes here.

What's new

• See the website for requirements and compatibilities.
• See the What's New guide for details about new features and capabilities.
• See the Migration Guide for details about migration to 6.6 version.

Conclusion

For additional details, see:

• the release page
• the Migration Guide
• the Introduction Guide
• the User Guide
• the API docs

See also the following resources related to supported APIs:

• the compatibility policy
• the incubating API report (@Incubating)
• the deprecated API report (@Deprecated + @Remove)
• the internal API report (internal packages, @Internal)

Visit the website for details on getting in touch with us.

Sourced from org.hibernate.orm:hibernate-core's changelog.

Changes in 6.6.37.Final (November 24, 2025)

https://hibernate.atlassian.net/projects/HHH/versions/36080

** Bug * HHH-19936 Parameter casts for by-id lookups don't take column definition into account * HHH-19926 NullPointerException when executing JPQL IN clause with null parameter on entity association * HHH-19922 org.hibernate.orm:hibernate-platform:pom:7.1.7.Final is missing * HHH-19910 EntityInitializer#resolveInstance wrongly initializes existing detached instance * HHH-19038 Hibernate.get does not work on detached entities * HHH-16991 EnhancedUserType cannot be used when defining relations

• d987793 [Jenkins release job] Preparing release 6.6.37.Final
• 2c2539e [Jenkins release job] changelog.txt updated by release build 6.6.37.Final
• 07eddea Add missing script attribute to the Jenkins command
• b7d2fd1 HHH-19926 NullPointerException when executing JPQL IN clause with null parame...
• 1c6e250 HHH-19926 Add test for issue
• 8b535c5 Fix checkstyle violations
• dd1354a Use the predefined version of jenkins helpers
• ebc4381 HHH-19038 - Evaluate the session validity in AbstractPersistentCollection bef...
• 31d75d0 Drop container image pre-pull since this is proxied now on CI anyway
• 3460dcd HHH-16991 Fix array based id restriction with EnhanceUserType
• Additional commits viewable in compare view

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