User blog comment:MisterWoodhouse/Pausing UCP migrations to resolve some critical blockers/@comment-4968017-20200831200031/@comment-26939652-20200901201550

Oh crap, I forgot about that.

A standard 2010 editor also doesn't have internal link autocompletion. That's going to f-up a lot of pages, because people will revert back to using external links for internal ones as it is 10 times faster to copy the address in neighbouring tab.