The announcement of Android Go Edition is accompanied by the official release of Android 8.1 Oreo. After more than a month in its beta version is today December 5 when Google releases the final version.
The first minor update of Android Oreo is here. Google has published both the source code of the new version next to the new APIs for developers, but this is not all. From now on Nexus and Pixel are already receiving the final version of Android 8.1 Oreo.
— Android (@Android) December 5, 2017
Android 8.1 Oreo, news
The new version Android 8.1 is a minor update of Android 8.0, so virtually all developments have to do with security improvements, performance improvements, correction of errors and changes in the interface, thelatter being the most important. You can check all the Android 8.1 Oreo news in depth in the following article:
The Nexus and Pixel are already updating to Android 8.1
Google has released the factory images and OTA updates for Android 8.1 Oreo from their Nexus and Pixel devices. The devices that update officially to this new version of the operating system of Google are Nexus 5X, 6P, Pixel C, Pixel, Pixel XL, Pixel 2 and 2 XL.