Motorola Moto X line and Moto E get Android 5.1 release notes
The release notes were already posted and you now know what to expect from the 5.1 OTA. Below you can see the 1st generation Moto X changes.
Here you can see what the changes for Motorola Moto E are:
The most important fact about these updates in not that they are happening but that they were made public. The original Moto X versions are accompanied by the AT&T and T Mobile and Pure editions.
The update should roll out soon and Moto X and Moto E users will be joining the 1st gen Moto X lovers out there.