Google has shared official details about Android Wear 1.5 a couple weeks ago, and since it has rolled out to the majority of Android Wear watches. Mainly, this is a maintenance and stability update that focuses on improving system health. Now, like Motorola and Samsung did earlier this month, Asus has released a changelog of specific fixes for the ZenWatch 2.
Update 6/8: More watches are now receiving Android Wear 1.5, including the second generation Moto 360 and Moto 360 Sport. Release notes on Motorola’s website point to security and stability improvements, as well as enhancements for Moto Body.
Android Wear 2.0 will introduce a bevy of new features for users and developers when it is released in Q4 of 2016. Before that major update, however, it appears that a more incremental version of Wear is rolling out. Several Samsung Gear Live users have already received Android Wear 1.5 and are only seeing minor changes.