Zac Bowden 03/10/16 : "Because Redstone 2 has been delayed, Microsoft can make it a much bigger update than originally planned, which is great news for Insiders and consumers who like to use new features. 2017 should see Microsoft launch two major updates for Windows 10: Redstone 2 in early 2017 and then a Redstone 3 in the summer/fall of 2017. Microsoft has just started rolling out Redstone 2 builds for Insiders to test, via the rs_prerelease development branch...