Just found another bug: The update broken [ code ] tags inside spoilers, which i used in an old modding help topic.
Also it would be nice to know if there's any progress on the "image attachment situation".
It looks like most things inside spoilers are broken. Also, images might be fixed? (ref)
Spot on, images seem to work again. I was even able to fix my old post that had an uneditable attachment on the pipe fff thread :).