OQGraph Support on 10.5

On centos we have access to the OQGRAPH plugin which is listed in the REPO.

However on RHEL OQGRAPH is not in the repo and therefore cannot be installed using yum install.

Is there a reason whey OQGRAPH is not available with the rhel release?

At the moment this is minor because we can still run on 10.4 but I was hoping to upgrade our solution to 10.5.

For the record I have also noted a problem where we are getting an error on 10.5 centos where OQGRAPH is installed saying that SAVEPOINT is not allowed. All tables are InoDB with the exception of one oqgraph backing table, and I haven't yet experimented to see if that is the culprit but have my suspicions. Is this the reason why OQGRAPH is not on RHEL?