Looks like Microsoft is very busy in releasing new insider builds. A day after the last build, the rolled out yet another build for the Windows 10 mobile users in the insider slow ring. The new Windows 10 Mobile insider build 15063.2 is now rolling out to the insiders in the slow ring of the Windows insider program.
Just like the last build, this build is a minor cumulative update that only contains a single fix that allows users to upgrade straight from the Anniversary Update to the Creators Update. At the same time, the ISO files of the Windows 10 build 15063 is also available for downloading from the Microsoft servers.
— Jen Gentleman 🌺 (@JenMsft) March 30, 2017