以下是Android Oreo版本的主要更新，平台移植相关的开发者需要关注并做适配。 本文列举出对应features，后续移植过程中遇到的问题会进行分享交流。
Implementing USB HAL The Android O release moves handling of USB commands out of init scripts and into a native USB daemon for better configuration and code reliability. For more information, see Implementing USB HAL in Android O .
Kernel enhancements to LLDB/C++ debugging The Android O release includes kernel enhancements that help developers create better applications by improving their debugging experience. For more information, see Implementing kernel enhancements to LLDB/C++ debugging in Android O .
Enabling sanitizers in the Android build system Sanitizers are compiler-based instrumentation components to use during development and testing in order to identify bugs and make Android better. Android's current set of sanitizers can discover and diagnose memory misuse bugs and potentially dangerous undefined behavior. For more information, see Enabling Sanitizers in the Android Build System .
Android TV O Overview You can see an overview of changes and new features for Android TV in the O release. More detailed TV-specific feature docs are coming shortly! For more information, see Android O for TV device partners .
Storaged Android O adds support for storaged , an Android native daemon that collects and publishes storage metrics on Android devices. For more information, see Implementing Storaged in Android O .
Optimizing SquashFS at the Kernel Level SquashFS is a compressed read-only filesystem for Linux, suitable for use on the system partition. The optimizations in this document help improve the performance of SquashFS. For more information, see Optimizing SquashFS at the Kernel Level .
Vehicle Camera HAL Describes the design of an exterior view system (EVS) stack and provides the HAL specification for supporting the acquisition and presentation of vehicle camera data. For more information, see Exterior View System (EVS) Vehicle Camera HAL.
Picture-in-picture Android O includes support for picture-in-picture (PIP) on Android handheld devices. PIP allows users to resize an app with an ongoing activity, such as a video, into a small window. For more information, see Android O—Picture-in-Picture on Android handsets .
Kernel Hardening Upstreamed kernel hardening features and tools to find bugs in kernel drivers. For more information, see Implementing kernel hardening in Android O .
Android Verified Boot Android O includes a reference implementation of Verified Boot (AVB): this doc covers how to implement AVB for your boot loader. For more information, see Android O—Implementing Android Verified Boot .
Flash Wear Management Describes eMMC behavior and new features to help OEMs lower the risk of a failing eMMC in the automotive environment. For more information, see Flash Wear Management in Android Automotive .
Optimizing Boot Times Partner guidance for improving boot times for specific Android devices. For more information, see Optimizing boot times in Android O .
VDEX files: Improve System Update Performance VDEX files improve the performance and user experience of software updates. VDEX files store pre-validated DEX files with verifier dependencies so that during system updates ART does not need to extract and verify the DEX files again. No partner action is needed to implement this feature. It is enabled by default. To disable the feature, set the ART_ENABLE_VDEX environment variable to false .