Microsoft releases Windows 10 build 21286, putting everyone in the Dev channel on prerelease January 6, 2021 by admin Tweet Today, Microsoft released a new Windows 10 Insider Preview to the Dev channel, for the first time in three weeks and putting everyone on the Dev channel on the rs_prerelease branch. Read more… Neowin Related Posts:Windows 11 Insider Preview Build 22621.575 and Build…Microsoft releases ISO for Windows 11 build 25197…Microsoft releases Windows 10 build 21359 to the Dev channelWindows 11 Canary Channel Insider preview build…Microsoft releases Windows 10 Build 19044.1806…