Besides addressing various bugs and issues, Android 8.1 adds a highly requested feature for Pixel 2 and Pixel 2 XL devices on AT&T. This update, which is rolling out now, adds HD Voice Calling support for customers on the network.
Today, Pixel 2 XL users on AT&T began receiving the Android 8.1 OTA after the initial rollout on Tuesday. The release notes for the update prominently cite the inclusion of “HD Voice Calling for AT&T users.”
After updating from Android 8.0, heading to Settings > Network & Internet > Mobile network displays a new option for Advanced Calling. After toggling, parties on compatible devices will get high-definition voice calls the allow for “simultaneous voice and data at 4G LTE speeds” when in an HD Voice coverage area.
This update also adds a light navigation bar to system apps like Settings to combat the Pixel 2 XL’s burn-in/screen retention issues. Touch responsiveness issues and audio recording bugs during video capture have also been addressed. The included December security patch also includes a fix for the KRACK Wi-Fi vulnerability.
Under-the-hood, Android 8.1 enables the Pixel Visual Core for third-party apps, while there is support for the new Neural networks API for hardware accelerating on-device machine learning.
Android 8.1 should be rolling out to all recent Pixel and Nexus devices in the coming weeks.
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