The 5th bug-fix release for Hibernate ORM 5.0 has just been tagged and published. This release and the upcoming 5.0.6 release have been done on an accelerated timebox of 2 weeks (from the normal 4 weeks for bugfix releases) due to US holidays.
The complete list of changes can be found here (or here for people without a Hibernate Jira account).
For information on consuming the release via your favorite dependency-management-capable build tool, see https://hibernate.org/orm/downloads/
For those of you allergic to dependency-management-capable build tools, the release bundles can be obtained from SourceForge or BinTray.
