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  <div class="landing-banner">
      <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>
  </div>

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  <div class="landing-docs">
    <div class="col-8">
    <h3>What's New</h3>
<a href="{@docRoot}source/build-numbers.html">
        <h4>Lollipop and Marshmallow Build Numbers</h4></a>
        <p>New <strong><a
        href="{@docRoot}source/build-numbers.html#source-code-tags-and-builds">Build
        Numbers</a></strong> have been published for Lollipop on Nexus 10 and
        Marshmallow on Nexus 5, Nexus 5X, Nexus 6, Nexus 6P, Nexus 7 (flo/deb), Nexus 9
        (volantis/volantisg), Nexus Player, and Pixel C.</p>

<a href="{@docRoot}compatibility/downloads.html">
        <h4>Android 6.0, 5.1, and 5.0 CTS Downloads</h4></a>
        <p>Android 6.0 R3, 5.1 R5, and 5.0 R4 Compatibility Test Suite (CTS)
        and CTS Verifier are available for <strong><a
        href="{@docRoot}compatibility/downloads.html">Download</a></strong>.</p>

<a href="{@docRoot}source/initializing.html">
        <h4>JDK 8 for Latest Platform Development</h4></a>
        <p>The master branch of Android now requires JDK 8 to build. See <strong><a
        href="{@docRoot}source/requirements.html">Requirements</a></strong>
        for a summary of Java versions by Android release. See <strong><a
        href="{@docRoot}source/initializing.html#installing-the-jdk">Setting up
        a Linux build environment</a></strong> or <strong><a
        href="{@docRoot}source/initializing.html#installing-the-mac-jdk">Setting up a
        Mac OS build environment</a></strong> for update instructions by operating system.</p>

<a href="{@docRoot}source/read-bug-reports.html">
        <h4>Reading Bug Reports</h4></a>
        <p>Android Engineering has written a detailed guide for <strong><a
        href="{@docRoot}source/read-bug-reports.html">understanding
        device-generated bug reports</a></strong>. This guide describes and
        provides examples of common errors and their associated causes, such as
        <strong><a href="{@docRoot}source/read-bug-reports.html#memory">low
        memory</a></strong>. It even explains how to establish a <strong><a
        href="{@docRoot}source/read-bug-reports.html#narrative">narrative</a></strong>
        of the issue by syncing timelines across logs.</p>

<a href="{@docRoot}compatibility/cts/rotation-vector.html">
        <h4>Rotation Vector CV Crosscheck</h4></a>
        <p>Instructions now exist for the CTS Verifier <strong><a
        href="{@docRoot}compatibility/cts/rotation-vector.html">Rotation Vector
        CV Crosscheck</a></strong> used to properly test the compatibility of rotation
        vector sensor implementations.</p>

<a href="{@docRoot}security/bulletin/index.html">
        <h4>Security Bulletins</h4></a>
        <p>The Android security team now publishes monthly <strong><a
        href="{@docRoot}security/bulletin/index.html">Nexus Security
        Bulletins</a></strong> describing key vulnerabilities fixed in AOSP
        with links to associated changes.</p>
    </div>

    <div class="col-8">
      <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>Site 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>
    </div>

  </div>

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