RC 6.3 was released mainly to fix the issues with connecting to Hybrid servers, like Rizon.
There were also some other minor fixes with plugins.
Also, it was a known problem with the updater not working properly, or not even starting.
So a manual update will need to be done to go to 6.3, but the issues should be fine from there forward.
At least, lets hope for the best. It was mainly a permissions issue, so this should be addressed for next time.