File editing/locking/merging isn't great, particularly if we've got Excel in our Source Control. We can either have everyone lock files or everyone merge. You can't merge Excel files so it means everyone has to lock or we store Excel elsewhere.

Unix Client is flaky and inconsistent and doesn't get much love.

I can't put a version number into a file so I can see in Prod what version the code is.

I could go on.