What I meant by a clean install was whether or not you had existing 0.6 packages installed. Julia separates packages for different versions, so your existing 0.5 packages shouldn’t matter. The reason I asked is that the current package manager is a bit wonky and sometimes can prevent things from updating properly (it will be replaced soon). I suggest that you do
I’m not sure exactly what you mean by “didn’t work with Atom”. Atom has a relatively mature Julia plugin called Juno which you should definitely install if you plan to use Atom. If you are still shopping around IDE’s, it seems to me that lately a lot of people are switching to VS Code which is really nice (I personally like it better than Atom, but I use vim so I’m not sure my opinion is relevant). You can find a Julia plugin for VS Code here.
I’m not quite sure what you mean by “installed 0.6 in the same directory” but as long as you run the binary for 0.6 it shouldn’t matter. You shouldn’t need to delete any of your 0.5 stuff, although I have no idea how the set up in Atom works, so I don’t know if anything will try to default to 0.5.