It's been a busy day in Hibernate land. In addition to 4.2.9.Final last night, we just released Hibernate ORM 4.3.2.Final! Please see the full changelog for more information: https://hibernate.atlassian.net/issues/?jql=project=10031+AND+fixVersion=15650.
In addition to dozens of bug fixes, both 4.2.9 and 4.3.2 were heavily focused on benchmark-driven performance improvements. Multiple CPU hotspots were mitigated and memory allocations reduced.
JBoss Nexus: https://repository.jboss.org/nexus/content/groups/public/org/hibernate
Maven Central: http://repo1.maven.org/maven2/org/hibernate/hibernate-core (should update in a couple of days)
Downloads: 4.3.2.Final ZIP, 4.3.2.Final TGZ