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This article introduces the knowledge about "Hibernate ORM 4.1.1 fixes what functions". In the actual case operation process, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

Hibernate is an object-relational mapping solution for Java. It is free and open source software distributed under the GNU Lesser General Public License. It provides an easy-to-use framework for mapping object-oriented domain models to traditional relational databases. Hibernate is also the most popular database persistence layer framework in Java development, and is now owned by JBOSS.

Hibernate ORM 4.1.1 has just been released and includes several improvements and bug fixes, notably:

Significant performance improvement for the internal QueryPlanCache class, which caches HQL and JPQL as well as SQL compilations, addressing concurrency bottlenecks (HHH-5927)

Improvements to 4.1 New natural id loading feature, e.g. loading via persistent inheritance (HHH-7046)

Improvements to the naturalid loading feature may cause problems with existing apps using @NaturalId

Allow JPA static metamodel to remain valid in non-JAP features using @Any mapping (HHH-6589)

Custom collection types can be supported via @CollectionType (HHH-4417)

Documentation improvements, full migration to DocBook v5

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