If you own a second-gen Moto E, it would seem that you ought to be getting a knock up to Android 5.1 decently soon. Few users on the XDA Developers, have reported that they received the update, flagging that the Android 5.1 update has started rolling out.
While the improvements and added features that Android 5.1 conveys ought to be really recognizable to most at this point, Motorola’s official changelog shows various bug fixes are joining up just for a improved performance too.
This kind of performance and bug fix 258MB updates like this may take a few days to hit your smartphone, so wait for a while in case you haven’t got it yet. If you received the update via over-the-air update, please make comments about the update, how its treating you.