The new default for the forum edit box is a bit naff unfortunately. I've tried to get on with it but, especially for code blocks, it doesn't work that well.
For one thing, the dropdown for language is missing html. 
Also, you seem to have to use the mouse to click on the dropdown which takes you away from the keyboard. Then you have to click back on the right line and, in dark mode at least, there is no colour differentiator between the text background and the code box background so it is a) not obvious you are IN code mode and b) hard to know where it begins and ends.
That the WYSIWYG mode is no wider than the non-WYSIWYG input also makes it rather pointless it seems to me.
I really wanted to like it but sadly it still needs some work to become truly useable.
