Today, Microsoft released not one but two new Windows 10 Insider Preview builds to the Dev channel. One of them is from the fe_release branch, while the other is a return to rs_prerelease.
Build 20277 RSS
Microsoft is back at it with the release of another weekly Windows 10 build for Insiders in the Dev channel. As usual, there are a few fixes and known issues to be aware of before making the jump.