Yes I know, Minecraft 1.0.0 is out. BuildCraft 2.2.x and 3.0.x will get ported in due time. Don’t expect anything to happen before two weeks though. I’m currently in vacation and will not have time to put together the required development and validation time required for supporting this new version before coming back. Also, Notch tends to make minor releases after a major one, although this is probably the result of the 1.9 stabilization, it’s better to wait and see.