We just published 5.9.0.Final, the first stable release in the 5.9 branch.
This release brings a brand-new JSR-352 integration for mass indexing,
WildFly feature packs, and better integration to modular environments.
Check out our blog for more information about this release:
yoann(a)hibernate.org / yrodiere(a)redhat.com
Hibernate NoORM team