And I made this topic so you know it is going to get fixed soon:
SC1 / SC2 forum hide button messed up on some skins, needs fixing.
New icons for new forums, even if temporary.
None.

NudeRaider -- Ultraviolet
maybe not replaced, just add a discord applet below the shoutbox imo
Ultraviolet --
maybe not replaced, just add a discord applet below the shoutbox imo
Symmetry -- https://scmjs.dev/editor/ in browser editor that came out this year too 
Roy