Warcraft 1.24b is patched on Battle.net Westfall Beta Server & IceFrog already started working on Dota 6.62 to make it work fine on 1.24b patch. He has also released Dota 6.62 Beta 9 map for testing. Read what he said in his forums:
A new blizzard Warcraft 1.24b Patch has been released on the test Westfall realm. Download this patch and then download 6.62 Beta 9.If you want to join the testing, Download the Dota 6.62 (Beta 9) map and connect to Battle.net Westfall beta testing server. Start playing games and report the bugs in PlayDota forums.
We need lots of full games on this. Either do your own games or join ones that some people will be advertising in this forum.