Just to say that I applied the new HTMLEditor over a previous version in a CMS on one of my sites (having backed up first!).
All wen't smoothly, (I had to set the Site Settings first) and the bindings all stuck just fine.
The only problem I have at the moment is that it won't recognise the site styles that I had previously set for the styles select list, which is a bit weird, as it has found the 'body' style and applied it OK, and the 'body' style was one of the styles in the site styles stylesheet.
So this means that it has found (and is recognising) my site styles, but clicking the styles select list in the Editor interface produces an entirely empty list. The path to the stylesheet is correct in my update and insert pages. One thing that does happen whenever I make any change to the HTMLEditor code however (when I was checking the stylesheet paths - relative/absolute) is that I get an error message (see image).
Also, the file manager is currently not working, returning an error in the File Browser window:
Undoubtedly my carelessness, but I have gone over the procedure several times, and can't spot my errors.
OK, tried several more times, and still no site styles. Final result is third image. Error message pops up at most stages.