This release fixes a couple regression introduced by
v2.5.7 and v2.5.8.
Specifically, AbstractHydrator#hydrateAll() was raising
E_NOTICE errors due to it not being registered with the
EventManager, yet trying to remove itself from the
registered listeners. #6623
In addition to that, having embeddable final classes
would cause errors being raised while trying to generate
proxies. The ORM will no longer attempt to generate proxies
for embeddables. #6625
Total issues resolved: 3