Like many before it, Microsoft’s BUILD conference has sold out. The conference, which kicks off in early April (Neowin will be there) is Microsoft’s premier developer conference.

If rumors hold true, this iteration of BUILD could be highly exciting as Microsoft may state its vision for Windows 9 which is expected to ship around April of 2015, roughly one year after the conference. Further, Microsoft will likely start releasing preview iterations of the platform later this year but a build is not expected to be released at the conference.