Yeah this isn't news, it's been out since about 2 hours after the update launched. If you guys already have 2.4 or whatever version you're still running, hold X to force the Selector to search for updates. It'll find 11.3 support on 2.5 right away.
So will a version possibly come out for O3DS/2DSsmea is the one working on it, he said it's more involved than he expected, he's already got a workaround in progress for N3DS users, but this one won't work for O3DS/2DS users. He's still working on it, or at least he would be if he didn't have to work. He'll most likely work his butt off tonight to get it up. If not tonight, then something is seriously hardcore about this update and it could take a while, but I wouldn't expect more than a week, even if it's serious business.