Updating from RC6 to RC7

[mesteele101]

I lost the link to the read/unread icons in the theme.

I'm unable to get into the CP, server type error.

Lost all my plugins, not showing in the right side after update. Tried to disable but they are not in the block editor after enabling. Looks like a complete install of existing plugins

Updated this way: Pasted all the files into the working RC6 folder and ran admin/update. No errors.

Back to RC6...