Check out the First look of Android M preview Most of the changes so far in this build seem to be under the hood, but there are few changes to the App Drawer and the Settings menu.
So far the build is much more stable than the initial Android L Developer previews that Google launched for Lollipop. The install process was relatively easy, with no issues noticed and other than a long initial boot and the now-typical ART application compiles.
Check here new feature in Android M
Developer Preview Download Here
Factory Image
