Cubase 4 is one year old in these days - Steinberg did not plan a major new version upgrade but considering the competitors' steps they had to do something... This is the new 4.1 version, with several major advancements. At first, it is fully Vista-compatible, and Steinberg implemented this year's sequencing hit, effect sidechaining. It is done by a very clever method, free routing, which means that you can send signal from virtually any point of your VST mixer to a real lot of possible inputs - for example VST3 effects' sidechin input also. More news are: global transpose track, some MediaBay advancements, Sequel compatibility, redesigned sample editor and so on - check the info page. Downloads can be arranged from here, and you can find a preview version of Cubase 4.1 64 bit also if you mind.