Starting today we’re rolling out an update to the Android 8.1 developer preview,
the last before the official launch to consumers in December. Android 8.1 adds
targeted enhancements to the Oreo platform, including optimizations for Android Go (for devices with 1GB or less of memory) and a Neural Networks API to accelerate on-device machine
intelligence. We’ve also included a few smaller enhancements to Oreo in response
to user and developer feedback.
If you have a device enrolled in the Android Beta Program, you’ll receive the
update over the next few days. If you haven’t enrolled yet, just visit the Android Beta site to enroll and get the
At the official release in December we’ll bring Android 8.1 to all supported
Pixel and Nexus devices worldwide R12; including Pixel 2 and Pixel 2
XL, Pixel, Pixel XL, Pixel C, Nexus 5X, and Nexus 6P. Watch for
What’s in this update?
This preview update includes near-final Android 8.1 system images for Pixel and
Nexus devices, with official APIs (API level 27), the latest optimizations and
bug fixes, and the November 2017 security patch updates. You can use the images
for compatibility testing or to develop using new Android 8.1 features like the Neural
Networks API and others.
Also, for Pixel 2 users, the Android 8.1 update on these devices enables Pixel
Visual Core — Google’s first custom-designed co-processor for image
processing and ML — through a new developer option. Once enabled, apps using
Android Camera API can capture HDR+ shots through Pixel Visual Core. See the release
notes for details.
With the consumer launch coming in December, it’s
important to test your current app now. This ensures that users transition
seamlessly to Android 8.1 when it arrives on their devices.
Just enroll your eligible device in Android Beta to get the latest update,
then install your app from Google Play and test. If you don’t have a Pixel or
Nexus device, you can set up an Android 8.1 emulator for testing instead. If you
notice any issues, fix them and update your app in Google Play right away —
without changing the app’s platform targeting.
Google Play is open for apps compiled against or targeting API 27. When you’re
ready, you can publish your APK updates in your alpha, beta, or production
To make sure your app runs well on Android 8.1 as well as older versions, we
recommend using Google Play’s beta
testing feature to run an alpha test on small group of users. Then run a
much open beta test on a much larger group of users. When you’re ready to launch
your update, you can use a staged
rollout in your production channel. We’re looking forward to seeing your app