[ https://issues.jboss.org/browse/WFLY-6854?page=com.atlassian.jira.plugin.... ] Gail Badner commented on WFLY-6854: ----------------------------------- I'm changing the description to upgrade to 5.1.3, because 5.1.2 contains HHH-11155. The reason for branching Hibernate 5.1 was to allow "fetch groups". In 5.0 and earlier, if any lazy property was initialized, then all lazy properties would automatically get initialized. 5.1 allows different combinations of lazy properties to be put into a "fetch group". The idea is that if any lazy property is a group is explicitly initialized, then Hibernate will initialized all properties in the fetch group. Any lazy properties that are not in the fetch group are unaffected. HHH-11155 is a bug where an update does not happen unless all lazy properties, regardless of fetch group, are initialized. This bug should be fixed before upgrading to 5.1. -- This message was sent by Atlassian JIRA (v6.4.11#64026)