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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. Here you can find the information and source code you need to learn more about the Android platform. From there you can
      create custom variants of the Android software stack, port devices and accessories to the Android platform,
      and ensure your devices are compatible with the Android compatibility definition.
      </p>

<h2 align="center">Android 6.0 Updates Available &mdash; see details below</h2>
  </div>

</div>

<div class="wrap">

  <div class="landing-docs">
    <div class="col-8">
    <h3>What's New</h3>
<a href="{@docRoot}devices/tech/power/index.html">
        <h4>Doze and App Standby</h4></a>
        <p>New battery-saving features <em>Doze</em> and <em>App Standby</em>
        are described in <strong><a href="{@docRoot}devices/tech/power/mgmt.html">Power
        Management</a></strong> while the remaining <strong><a
        href="{@docRoot}devices/tech/power/index.html">Power</a></strong> section has
        been revised.</p>

<a href="{@docRoot}devices/tech/security/authentication/index.html">
        <h4>Authentication</h4></a>
        <p>An entirely new <strong><a
        href="{@docRoot}devices/tech/security/authentication/index.html">Authentication</a></strong>
        section describes the <strong><a
        href="{@docRoot}devices/tech/security/authentication/fingerprint-hal.html">Fingerprint</a></strong>,
        <strong><a
        href="{@docRoot}devices/tech/security/authentication/gatekeeper.html">Gatekeeper</a></strong>,
        and <strong><a
        href="{@docRoot}devices/tech/security/authentication/keymaster.html">Keymaster</a></strong>
        interfaces in detail, including a list of <strong><a
        href="{@docRoot}devices/tech/security/authentication/km-features.html">Keymaster
        features</a></strong> and an <strong><a
        href="{@docRoot}devices/tech/security/authentication/km-implementer-ref.html">implementer’s
        reference</a></strong>.</p>

<a href="{@docRoot}devices/storage/index.html">
        <h4>Adoptable Storage</h4></a>
        <p>The <strong><a
        href="{@docRoot}devices/storage/index.html">Storage</a></strong>
        section has been revised to introduce <strong><a
        href="{@docRoot}devices/storage/adoptable.html">adoptable
        storage</a></strong> that can hold app data and distinguish between it and <strong><a
        href="{@docRoot}devices/storage/traditional.html">traditional
        storage</a></strong>.</p>

<a href="{@docRoot}devices/tech/config/index.html">
        <h4>Configuration</h4></a>
        <p>Instructions now exist for configuring <strong><a
        href="{@docRoot}devices/tech/config/runtime_perms.html">runtime permissions</a></strong>,
        <strong><a href="{@docRoot}devices/tech/config/voicemail.html">visual
        voicemail</a></strong>, and Android’s new <strong><a
        href="{@docRoot}devices/tech/config/filesystem.html">file
        system</a></strong>. And carriers get <strong><a
        href="{@docRoot}devices/tech/config/carrier.html">custom
        configuration</a></strong>.</p>

<a href="{@docRoot}devices/tech/debug/index.html">
        <h4>Tooling</h4></a>
        <p>Information on the <strong><a href="{@docRoot}source/jack.html">Jack
        (Java Android Compiler Kit)</a></strong> default toolchain in Android 6.0 is
        available, as well as instructions for <strong><a
        href="{@docRoot}devices/tech/dalvik/gc-debug.html">debugging garbage collection
        in ART</a></strong>.</p>

<a href="{@docRoot}devices/media/index.html">
        <h4>Media</h4></a>
        <p>The <strong><a
        href="{@docRoot}devices/media/index.html">Media</a></strong> section now
        contains descriptions of media resource manager dependencies for <strong><a 
        href="{@docRoot}devices/media/oem.html">OEMs</a></strong> and <strong><a 
        href="{@docRoot}devices/media/soc.html">SoC vendors</a></strong>.</p>

<a href="{@docRoot}accessories/stylus.html">
        <h4>Bluetooth Stylus</h4></a>
        <p>The <strong><a
        href="{@docRoot}accessories/index.html">Accessories</a></strong>
        section now explains how to implement a <strong><a
        href="{@docRoot}accessories/stylus.html">Bluetooth Stylus</a></strong>.</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:left;margin:5px 10px"></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}accessories/index.html">
        <h4>Build Accessories</h4></a>
        <p>Sometimes, a device can't do it all. Tap into Android's open accessory standard and build accessories to complement the wide variety of Android-powered devices.</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>Please note, 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>

</div>