Quote - I'm not sure what you mean - the only content that changes is the basic stuff (Genesis and the included clothes, which are now in .duf instead of .dsf in the People folder). If you go back to the release version, which will be a fiddle and will mean losing your settings, you will get the original versions of the files back. other items will not be removed and so will work as usual*, though you should be aware that .daz files (and the .dso and so on files in the data folder) will not be backward comatible if you save scenes that way - using .duf scene files, however, although those won't open in DS 4.0 they won't break your existing .daz files. Note that some content will give a Duplicate IDs error. This isn't fatal, and I do have a script that will fix it, in most cases, when I geta round to uploading it.

Maybe I am making it more complicated than it needs to be.  Seems to me I read somewhere we should uninstall "the original Daz 4 content and replace it with the new 4.5 content."  I would have no idea how to separate the "original" content from all the stuff I've installed since Genesis was first introduced.  I.e. I am sure I could figure it out, but it seems like a lot of work.

So are you saying that when we install the new Release Candidate, its content will just merge with the existing My Library?