This page lists updates made to this site beginning with the Android 12 release. To see changes made to Android 12, see the Android 12 Release Notes page.
The first important site change was the Android 12 documentation release in October 2021, presented on a site given a brand new look and feel, provided by a redesigned navigation with a fresh look to the homepage and new landing pages! Other site changes and updates are provided here on a monthly basis.
These are the December site changes. Locate regularly scheduled bulletins such as the Android Security Bulletins on their respective pages.
|Architecture||Incremental File System: New sections added and edits made to show specific changes for Android 12 Kernel. Differences between Android 12 and Android 11 noted throughout as needed.|
|VINTF information updated to include new Inet HAL transport, under Manifest file schema section.|
|Automotive||Added Pixel 6 and Pixel 6 Pro information to Pixel on Development Platforms page.
Also added new page, Spectatio: Automotive Test Framework
added a link to Android 12 patches on the S Release details page.
New section added to UX Foundation for Haptic Framework page: Audio-coupled haptics: Haptic Generator.
|Clarification added to Profile Guided Optimization (PGO) page stating
that apps can't write to
|Compatibility||On the Camera ITS-in-a-Box page, deleted the reference to parallel testing. It's not supported in the Android 12 Python 3 refactor.|
|Updated the Camera ITS Tests page to include descriptions of the
test groupings (by scene).
Compatibility Test Suite Downloads: Updates to the CTS Instant downloads for CTS-Dec-2021 Releases were added.
|Removed a broken link on the VTS Dashboard Setup page that was pointing to a nonexistent codelab.|
|Security||December Security Bulletin
page now available.
December AAOS Security Bulletin page now available.
December Pixel Security Bulletin updated with AOSP links.
Acknowledgements page updated with AOSP links.
|Setup||Generic System Images (GSI) page was updated to make it current with the Android 12 release: Removed legacy GSI, and disabling verity boot information, documented changes on GSI for Android 12 and Android 11 throughout page.|
|Pixel 6 and Pixel 6 Pro were added to the device table under
Selecting a device build.
The Rust Modules page was updated to contain information about
|Information was added about how to prevent causing merge commits, under
the Handling repo errors
Build numbers have been updated on the Codenames, Tags, and Build Numbers page.
These are the site changes made for the month of November. Locate regularly scheduled bulletins such as the Android Security Bulletins on their respective pages.
and AIDL for HALs:
Updated information about supported types in AIDL backend and new
Rust backend information. Updated
|Loadable Kernel Modules,
Android Common Kernels,
and Generic Kernel Image:
Updated Loadable Kernel Modules module-signing section to show that signing isn't supported. Updated Android Common Kernel Test matrix table, and updated GKI 2.l0 codebase integration information.
|Android Automotive||Garage Mode: Added
new debugging details to Garage Mode page.
Using Vehicle Bound File Encryption: Added new content to the Using Vehicle Bound File Encryption page.
|Pixel 4a (5G) and Pixel 5
as Development Platforms: Removed the sentence referencing Pixel
3 and Pixel 4.
Android Automotive 11 Release Details and Android Automotive 12 Release Details: Added new release details to each page.
Added November updates. On the
switched references for |
|Bootloader||Added GKI 2.0 boot.img integration information to the
Enable the USB Gadget
HAL APIs page.
Published the fbpack.py, fbpacktool.py, and packedstruct.py
pixel bootloader packer/unpacker scripts (temporarily, until the tool is available in AOSP).
|Compatibility||Sensor Fusion Box Details
provides updated production files (from 1.7 to 1.8), with a cleaned-up BOM and 3D file.
Camera ITS Tests: Updated AOSP docs show accurate chart distance requirement. Added
|Camera ITS-in-a-Box: Removed
Galaxy Tab A from the recommended tablets list.
Interpreting CTS Results: Added explanation for TF not saving partial results. Using CTS Verifier has UICC requirements added to verifier.
|ATest has updated ACloud usage (local-instance/local-image ONLY) for external users. The Android Test Station Release Notes have November additions. The Camera HAL Testing Checklist page has a new reference to test descriptions at Camera HAL.|
|Connectivity||Time Overview: Added clarification details for time zone settings. Clarification added to IMS Service Entitlement for the network traffic path, ImsServiceEntitlement app. The Implementing IMS page was updated to include information regarding carrier and device configurations. The Quick Access Wallet page has updated images; the Secure NFC page has updated screenshots.|
|Graphics||On Implementing Vulkan
various references to per-1.0 WSI naming were fixed. The
Multiple Refresh Rate
page has removed the reference to
|Media||Compatible Media Transcoding has additional information on behavior for devices without HDR-to-SDR encoding and improved description of device requirements for HEVC encoding|
|Permissions||Implementing USB HAL has been updated to mention Gadget 1.2 features.|
|Security||The Validating SELinux page
has removed the other reference to
|Setup||Building Kernels has Pixel 6 kernel-build information. Codenames, Tags, and Build Numbers lists updated build numbers for November EMR, updated build numbers for security releases 2021-11, and updated build numbers for Pixel 6 releases.|
|Debugging||HWAddressSanitizer has added a link to the Developer documentation. (See the note box at the top of the page.)|
Android 12 documentation made available on this newly designed site. The site redesign includes these updates to the site navigation:
- Docs dropdown menu: Hover over the Docs tab to see an overview of all the information found on the site.
- Expanded left navigation: Use the dynamic left navigation bar to explore sections without leaving the current page.
- New sections
|Architecture||Android Common Kernels
Updated KMI kernel compatibility description shows the new plan for KMI breaks.
Updated the terminology table show the max level and framework HAL deprecation schedules.
Added max-level and framework HAL deprecation schedule to the framework manifest example.
Added a note about nested types under Importing types in the AIDL Backends page and an example to the Overview page.
|Android Automotive||Simulate Networks in
Android Automotive OS
Added Simulate Networks in Android Automotive OS (new page).
|System Performance Tools
Added System Performance Tools (new page).
|User Interface Frameworks
Added User Interface Frameworks (new page).
Updated the customization guidelines.
|Implementing Custom User Types
Added Implementing Custom User Types (new page).
Added section Using CarAppFocusManager. This page now provides steps for using
|Compatibility||Android 12 Compatibility Definition
Updated Android CDD requirements (and affected documentation in the Compatibility section) for Android 12.
|Virtual Devices in Android Test Station
Added description about Acloud for virtual devices in ATS under Setting test resources.
|Test through Tradefed
Added new steps to retry isolation and configure global test filters to the Test through Tradefed page.
|Media||Compatible Media Transcoding
Added a new paragraph for Restrictions on requesting transcoded files.
Updated the build instructions for Android 12 under Downloading sources and build tools.
|Android Rust Patterns
Added new section for Rust-Java interop and Build definition to the Android Rust Patterns page.