Yesterday the new launcher that Google is reportedly working on for the upcoming Nexus devices leaked, showing some pretty drastic changes from Google’s current Google Now Launcher. Changes like the elimination of the app drawer and a significantly different Google search bar all of which was leaked in the form of a set of .GIFs that you can take a look at here.
This new leaked Nexus launcher was apparently good-looking enough for people to want it pretty badly as the APK has already leaked out to the public. All you have to do in order to get it on your device is simply sideload the APK on your Android device. Fair warning, though, this method does come with a couple of caveats.
The first of which is that you will not be able to swipe right on your homescreen to get to Google Now like you’re supposed to be able to. This is because Google’s APIs require that the app be installed as system app in order to work. Second is that you will not be able to change your wallpaper unless you actually go to the image you would like to use as your wallpaper in your gallery and then set it as your wallpaper from there.
If you are eager to use the new Nexus launcher but don’t want to deal with these rather annoying caveats, don’t worry, there is a way to. It does require a little more work, but if you flash the Nexus launcher zip file through TWRP you should not experience any of the above issues. XDA has a handy tutorial on how to do this.