A patch released by Blizzard today brings 3D support to StarCraft II, meaning now those banshees will totally pop off the screen. The patch, the first major one since StarCraft II's release in July, also brings some changes to the game's all-important balance.
In particular, Zealot rushes will now be substantially more difficult, as build times for the little blue dudes have been increased. The same goes for the frequently-seen Reaper rushes, as both Reaper build times and Bunker build times have been increased. The patch is good news for Zerg players, who only suffered a decrease in power to the Ultralisk -- a unit many players rarely survive long enough to produce.
The 3D support is the biggest news. To take advantage of the added support, however, players will need to have NVIDIA 3D Vision. It may be worth it, though, as you'll be able to watch all those fancy cinematics in the third dimension.
The full list of patch notes can be seen here.