The changelog is here: https://hibernate.atlassian.net/issues/?jql=project%20%3D%20HV%20AND%20fixVersion%20%3D%206.0.12.Final%20order%20by%20created%20DESC .

The only changes affecting WildFly are:

• https://hibernate.atlassian.net/browse/HV-1645 - CDI integration change
• https://hibernate.atlassian.net/browse/HV-1643 - minor Russian translation fix
  the rest are infrastructure changes to run the integration test with latest WF 14 Beta1 (and thus allowing us to run them again with JDK 11) and a fix to our dependencies with JDK 11 (which doesn't affect WF at all).

The reason of this upgrade is specifically the CDI integration change. It reverts the behavior to what was done prior to 6.0.10.Final due to a regression in the startup time of the CDI applications reported by the Open Liberty team.

As WF 13 was released with HV 6.0.10.Final, it could potentially change the behavior for people having used the EE8 preview mode. This does not concern EAP as the behavior of HV 6.0.12.Final is the same as the version in previous EAP.