Windows Blue, the first of Microsoft’s new rapid release OS updates, looks to be on track for a public reveal this June at the Build conference in San Francisco. Three more months seems like plenty of time to smooth out the rough edges.According to The Verge’s sources, Microsoft will also be making a preview download available at that time. With Windows 8, Microsoft offered up three preview builds — an early one for developers, one to give consumers a glimpse at the new interface, and a release preview. With a much tighter release schedule for the Blue update, however, it’s possible that we might only see two this time around. That is, of course, assuming you don’t count preview releases like the version of Windows Blue that’s currently available for download from numerous torrent sites.Can Microsoft really have a preview build of Blue by the end of June? VP of corporate communications Frank Shaw certainly seemed to think so in a recent blog post. Shaw mentioned the Build attendees will see what’s next for several key Microsoft software offerings. His post also mentioned the continuous development cycle that is Blue being the “new normal at Microsoft,” and closed his remarks by taking a shot at Google for the shutdown of Reader. “Spring isn’t just for cleaning/whacking away at things,” he jabbed, adding “that it’s also a time to plant and get ready for summer.”One more tidbit Shaw shared: Microsoft won’t actually be naming the new release Windows Blue. It’s just an internal codename.Judging by the number of refinements, new features, and the updated core of apps that are already part of the leaked Windows Blue OS, a preview release at Build seems like a lock. As for when the update will get the gold treatment and receive Steve Ballmer’s autograph, that’s more of a mystery — but some time ahead of the 2013 holiday shopping rush seems like a safe bet.