I used the beta installer and it terminated my session of Logos and then disappeared. Nothing happened until I realised it was chewing up wait states and mass storage space until I terminated the other session of Logos 6. Not good - - and why does it have to wait anyway?
7776.SetupWaiting.zip
Also, I have three "System" folders (1x 6.3..., 2x 6.4...) - one of them was not removed