General advisories
This Developer Preview release is for app developers only and is designed for use in compatibility testing and early development only. Please be aware of these general notes about the release:
This release has various stability and performance issues on all devices that make it not suitable for daily use on phone or tablet, especially for non-developers.
System and app performance is known to be periodically slow / janky, and device may become occasionally unresponsive. These problems may become more acute with prolonged use.
Battery life may be regressed in this release for screen-on and screen-off use cases.
Some apps may not function normally on Developer Preview 1. This includes Google’s apps as well as other apps.
This early build is not Compatibility Test Suite (CTS) approved. Apps that depend on CTS approved builds (Android Pay for example) won’t work.
This preview release supports the following devices: Nexus 5X, Nexus 6, Nexus 6P, Nexus 9, Nexus Player, and Pixel C.
Platform Issues
Performance and battery
System and app performance is known to be periodically slow / janky, and device may become occasionally unresponsive. These problems may become more acute with prolonged use.
Battery life may be regressed in this release for screen-on and screen-off use cases.
Dialer
Dialer app does not support Direct boot. This will be addressed later in N Developer Preview.
Voicemail playback does not work.
System UI
Some new or modified strings in the system UI are not translated to all languages.
Overview UI is still in development, and subject to change. For example, we intend to remove the timer that appears when the user switches between apps.
Settings controls and toggles may be slow or appear to be unresponsive.
Visual design of notifications is subject to change.
In the Gmail app, direct archiving of emails included in a notification bundle does not work properly.