Today when updating from beta 7 to 8 the installer stops after churning away with install progress bar (the one on black screen with logo only) for many minutes
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macOS could not be installed on your computer
The opertion couldn't be completed. Too many levels of remote in path
Quit the installer to restart your computer and try again.
(Restart button)
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I have had no problems updating Catalina up to this point. After reading some of the other issues with files going missing I'm very leary of this upgrade! Thankfully I'm booting it on external SSD so so far, no problems with internal drive. :-)