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<h1 itemprop="name" style="margin-bottom:0;">Welcome to the Android Open Source Project!</h1>
<p>
Android is an open source software stack for a wide range of mobile devices and
a corresponding open source project led by Google. This site offers the
information and source code you need to create custom variants of the Android
stack, port devices and accessories to the Android platform, and ensure your
devices meet compatibility requirements.
</p>
<h2 align="center">Android 6.0 Updates Available &mdash; see details below</h2>
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<h3>What's New</h3>
<a href="{@docRoot}source/community.html">
<h4>Android Resources</h4></a>
<p>Android Community now includes a collection of <strong><a
href="{@docRoot}source/community.html#resources">Resources</a></strong>
for contributors, developers, users, and security experts.</p>
<a href="{@docRoot}devices/tech/power/values.html">
<h4>Received Feedback Implemented</h4></a>
<p>Thanks to contributors who have submitted input using the
<strong>Send Feedback</strong> button, <strong><a
href="{@docRoot}devices/tech/power/values.html">Power Values</a></strong> now
notes <code>cpu.active</code> represents the power used by the CPU rails when
running at different speeds and explains why power profile values are given in
current (amps). <strong><a
href="{@docRoot}source/building-kernels.html#building">Building
Kernels</a></strong> describes how to locate the correct filename for each
kernel, while <strong><a
href="{@docRoot}compatibility/cts/setup.html#user_builds">Setting up
CTS</a></strong> more clearly defines compatible devices for the purposes of
testing.</p>
<a href="{@docRoot}devices/tech/config/kernel_network_tests.html">
<h4>Kernel Networking Unit Tests</h4></a>
<p><strong><a
href="{@docRoot}devices/tech/config/kernel_network_tests.html">Kernel
Networking Unit Tests</a></strong> describe a suite of tests provided by
Android engineering to help ensure the device kernel will properly
support the Android networking stack.</p>
<a href="{@docRoot}security/verifiedboot/verified-boot.html">
<h4>Logging Mode Optional When Verifying Boot</h4></a>
<p><strong><a
href="{@docRoot}security/verifiedboot/verified-boot.html#boot_partition">Verifying
Boot</a></strong> now makes it clear logging mode does not have to be
implemented, and dm-verity may be kept in enforcing mode.</p>
<a href="{@docRoot}compatibility/cts/setup.html">
<h4>Bluetooth LE Beacons CTS Guidance</h4></a>
<p><strong><a
href="{@docRoot}compatibility/cts/setup.html#ble_beacons">Bluetooth LE
beacons</a></strong> can be used to test the compatibility of Bluetooth low
energy features on Android devices.</p>
<a href="{@docRoot}devices/audio/index.html">
<h4>Audio Data Formats, MIDI Architecture, Related Updates</h4></a>
<p>New information is available about <strong><a
href="{@docRoot}devices/audio/data_formats.html">Audio Data Formats</a></strong>
and the <strong><a
href="{@docRoot}devices/audio/midi_arch.html">MIDI Architecture</a></strong>.
Also updated are <strong><a
href="{@docRoot}devices/audio/latency_measurements.html">Latency Measurements</a></strong>
and <strong><a
href="{@docRoot}devices/audio/terminology.html">Audio Terminology</a></strong>.
It also is noted that Android indirectly <strong><a
href="{@docRoot}devices/audio/midi.html#for-android">supports MIDI 1.0 via
an external adapter</a></strong>.</p>
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<h3>Getting Started</h3>
<a href="{@docRoot}source/index.html">
<h4>Explore the Source</h4></a>
<p>Get the complete Android platform and modify and build it to suit your needs. You can
also <strong><a
href="https://android-review.googlesource.com/#/q/status:open">contribute
to</a></strong> the <strong><a
href="https://android.googlesource.com/">Android Open Source Project (AOSP)
repository</a></strong> to make your changes available to everyone else
in the Android ecosystem.</p>
<a href="{@docRoot}source/index.html"><img border="0" src="images/android_framework_small.png" alt="Android framework summary" style="display:inline;float:right;margin:5px 10px;width:42%;height:42%"></a>
<a href="{@docRoot}devices/index.html">
<h4>Port Android to Devices</h4></a>
<p>Port the latest Android platform and
create compelling devices that your customers want.</p>
<a href="{@docRoot}security/index.html">
<h4>Make Secure</h4></a>
<p>Follow these examples and instructions to harden your Android
devices against malicious attacks. Find out how the Android security program
works and learn to implement the latest features.</p>
<a href="{@docRoot}compatibility/index.html">
<h4>Get Compatible</h4></a>
<p>Being Android-compatible lets you offer custom features but still give users and developers a consistent
and standard experience across all Android-powered devices. Android provides guidance
and a test suite to verify your Android compatibility.</p>
<a href="https://android.googlesource.com/platform/docs/source.android.com/">
<h4>Help this Site</h4></a>
<p>Use the <strong>Send Feedback</strong> button at the bottom of any
page to request improvements to the content or identify errors. In addition,
source.android.com is maintained in the Android Open Source Project. See the
<strong><a
href="https://android.googlesource.com/platform/docs/source.android.com/+log/master">docs/source.android.com
project log in AOSP</a></strong> for the complete list of changes to this site.
Contribute your own updates to that same project and help maintain source.android.com.</p>
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