Google has made the second and final developer preview of Android 8.1 Oreo available to app writers and beta testers.
The refreshed beta represents the OS is final form according to Google, though some bugs remain. Notably, Android 8.1 unlocks the Pixel Visual Core on the Pixel 2 and Pixel 2 XL. This will allow app developers to put the Pixel phones’ HDR+ mode to use in their own imaging apps.
This update to Android includes a significant number of under-the-hood changes. For example, apps can take advantage of hardware acceleration for on-device machine learning operations. Android 8.1 makes changes to notifications, helps developers target low-RAM devices, and improves Oreo’s autofill behaviors. Developers gain a bevy of new tools, such as the Safe Browsing API for detecting threats, the Shared Memory API for creating apps that are able to share memory resources, and the Wallpapercolors API for tweaking wallpapers.
Other updates include the ability to assign new behaviors to the fingerprint reader on Android handsets, such as permanently lockout users who fail too many times to unlock their device with a fingerprint.
The Android 8.1 Oreo Developer Preview 2 is available to registered developers and Android beta testers. Google has made system images available for direct installation on compatible handsets, though an over-the-air update will also reach registered Google users in the near future.
The beta is compatible with the Pixel, Pixel XL, Pixel 2, Pixel 2 XL, Nexus 5X, Nexus 6P, Nexus Player, and Pixel C. Google expects to release the final version of Android 8.1 Oreo to devices starting in December.
