Google on Monday released the second developer preview for Android 8.1, which is said to be a near final before releasing to the public. According to a previous timeline, Android 8.1 should be available starting in December or January.

The release notes are pretty limited, but 9to5Google has a running list of all the new goodies available in the latest preview.

Among the biggest changes, Google is allowing developers to test the Pixel Visual Core, which is the search giant’s first custom-designed co-processor for image processing and machine learning.

When the first version of Android 8.1 was released to developers, Google introduced a WallpaperColors API, Programmatic Safe Browsing actions, and a Shared memory API.

If you’re enrolled in the Android Beta Program, you should receive a notification update very soon. The Android 8.1 Developer Preview 2 is available for the Nexus 5X, Nexus 6P, Pixel C, Pixel, Pixel XL, Pixel 2, and Pixel 2 XL.