Windows Insider Preview Build 19628 is released to Windows Insiders in the Fast ring. The name of the branch were releasing builds from has changed to MN_RELEASE starting with todays build. This is just a short-term change and we intend to release builds from RS_PRERELEASE again soon. As our engineers work in development cycles internally, we may prioritize work being done in a specific branch and may need to move Insiders between branches. There will be a slight delay between when a build is flighted and when Flight Hub is updated.”]