(A cynical soul might note that the 'Pilot' bars in the slide correspond to the time after a version has been released, but before it's declared Current Branch for Business.

Win10 has received version bumps every eight months or so since the first bump appeared four months after the original version of Win10. Of course Microsoft's working on a new version of Windows 10, and we've known for months about plans to slip another version out this year. The headlines about Microsoft 'confirming' there will be a second version of Win10 later this year are silly. (Look at 22 to 24 minutes, if you're really interested.) The slide shows that Microsoft plans on shipping another version of Windows 10 in late 2017. Earlier this week, multitudes of Windows blogs bloviated over the discovery of a slide in a Ch9 video from Bill Karagounis' presentation at Microsoft's Ignite Australia conference. Given the pressure to get new releases out prior to the holiday buying season, I think it likely that Redstone 3 will end up as version 1710 (as in October 2017) or possibly 1709 or 1711. If Microsoft continues its current pace of releasing new Win10 versions every eight months or so, Redstone 3 will likely hit in October or November. Look for the coming out ceremony later this year.

When fully developed, Redstone 3 will supplant the Win10 version currently in beta, the Creators Update aka version 1703 ('Redstone 2'). Build 1.1000 (rs_prerelease.170219-2340) appears to be the first in a new line of Win10 releases, code-named 'Redstone 3.' Earlier this week, a brand-new version of Win10 got caught in the BuildFeed flypaper. Think of the site as an early warning system for new versions of Windows.

Windows 10 1511 to 1703