I need to use Hibernate version 6.0.0.Alpha7, since they have solved the following issue: https://hibernate.atlassian.net/browse/HHH-1050
Hibernate dependency is declared using quarkus extension:
<quarkus.platform.version>2.1.4.Final</quarkus.platform.version>
(...)
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-hibernate-orm</artifactId>
</dependency>
I think this is still using Hibernate 5.5.6.Final. How can I use Hibernate 6.0.0.Alpha7?
You can't use Hibernate 6 with Quarkus. We will bump to that version sometime in the future, but for now we are on 5.x.
If that issue is very important to you, I propose you ask the Hibernate team to backport the fix to the 5.x line
Update
Quarkus will switch to Hibernate 6 in Quarkus 3.0 (the switch had already been made in the main branch)