The beta of Android 8.2 begins to circulate
Coolwalk in Android Auto with two formats: horizontal and vertical menu (Rails). not available yet
The strategy of the development team behind Android Auto maintains a continuous release process that, after updating the platform to a stable version, soon after releases the next version in beta. Not only that: Android Auto is firmly updated once every month, approximately. At this rate, it seems that the platform is including news every month. It is not the case.
As confirmed in the specialized Android Auto forum on Reddit, those who are signed up for the beta of the app are receiving version 8.2, the first in development. This opens the door for everyone who uses Android Auto to try the news, if any visible is really coming: apk file will be distributed soon.
Beta users on Reddit have confirmed that the Coolwalk interface is still not available to the naked eye (yes, it can be activated with root and following a very specific process). The apk is not yet available: it will appear shortly via APK Mirror.
As soon as we have access to the Android Auto 8.2 beta apk we will analyze the code to find out if Google has made internal changes. In principle, the visible changes are the usual improvements in stability and compatibility with different models and makes of cars. With the jump from 8.0 to 8.1, Android Auto included different experiments with Google Assistant and the vertical interface of Coolwalk; so the safest thing is that Android Auto 8.2 will strengthen the experience with the aforementioned Coolwalk. Of course, it will continue without access for the majority.