Preliminary support was added. Will not work on IE8 though.
Also a note...
Users without the use_very_dangerous_comcode privilege will be blocked from using SVG uploads. This is because SVG may contain Javascript code which presents a serious security problem.
So we cannot support user-uploaded SVG unless we write a filter, which would take quick some time.
(I think this was resolved a while back, and I did not mark it done due to it being experimental -- well, nobody's complained since, so it must have been fine)
Also a note...
Users without the use_very_dangerous_comcode privilege will be blocked from using SVG uploads. This is because SVG may contain Javascript code which presents a serious security problem.
So we cannot support user-uploaded SVG unless we write a filter, which would take quick some time.