Merge "doc: Update N Preview release notes for DP2." into mnc-mr-docs
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@@ -16,6 +16,222 @@ page.image=images/cards/card-n-support_2x.png
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<p>To discuss issues or ideas with other developers working with Android N, join the
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<a href="{@docRoot}preview/dev-community">Developer Preview Google+ community</a>.</p>
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<h2 id="dp2">Developer Preview 2</h2>
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<div class="wrap">
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<div class="cols">
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<div class="col-6of12">
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<p>
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<em>Date: April 2016<br>
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Builds: NPC91K<br>
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Emulator support: x86 & ARM (32/64-bit)<br>
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Google Play services: 8.4</em>
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</p>
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</div>
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</div>
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</div>
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<h3 id="new">New in DP2</h3>
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<ul>
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<li>Platform support for Vulkan, a new 3D rendering API that provides
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explicit, low-overhead GPU (Graphics Processor Unit) control and offers
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improved performance for draw-call heavy applications. For details, see the
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<a href="{@docRoot}ndk/guides/graphics/index.html">documentation</a>.
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</li>
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<li>New people emoji with support for skin tones, and new Unicode 9 glyphs.
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Skin tone and new emoji will not show up until keyboards build support for
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them in the palette. Apps should not need to take any action to take
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advantage of these new emoji, unless the apps use a non-system font. IME
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developers need to incorporate support for the new emoji.
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</li>
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<li>
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<a href="{@docRoot}preview/api-overview.html#launcher_shortcuts">Launcher
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Shortcuts API</a>: Apps can use <code>ShortcutManager</code> to send
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shortcuts to starting points within themselves to the launcher.
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</li>
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<li>
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<a href="{@docRoot}preview/features/multi-window.html">Multi-Window</a>:
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You can now specify a separate minimum height and minimum width for an
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activity. In addition, several API names have been slightly changed.
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</li>
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</ul>
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<h4 id="dp2-fixes">Fixes for issues reported by developers</h4>
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<p>
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A number of issues reported by developers have been fixed, including:
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</p>
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<ul>
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<li>Can’t connect to hidden SSID or non-broadcast Wi-Fi (bug <a href=
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"https://code.google.com/p/android/issues/detail?id=203116">203116</a>)
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</li>
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<li>Microphone mute state persists across activities (bug <a href=
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"https://code.google.com/p/android/issues/detail?id=205922">205922</a>)
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</li>
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<li>Changing Multiwindow focus pauses YouTube (bug <a href=
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"https://code.google.com/p/android/issues/detail?id=203424">203424</a>)
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</li>
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<li>Direct Reply may close open activity (bug <a href=
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"https://code.google.com/p/android/issues/detail?id=204411">204411</a>)
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</li>
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<li>Various stability fixes
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</li>
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</ul>
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<h3 id="general">General advisories</h3>
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<p>
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This Developer Preview release is for <strong>app developers only</strong>
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and is designed for use in compatibility testing and early development only.
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Please be aware of these general notes about the release:
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</p>
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<ul>
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<li>This release has various stability and performance issues on all devices
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that make it <strong>not suitable for daily use on phone or tablet</strong>,
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especially for non-developers.
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</li>
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<li>Battery life and performance have not yet been optimized with this
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release:
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<ul>
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<li>System and app <strong>performance is known to be periodically slow /
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janky</strong>, and devices may become occasionally unresponsive. These
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problems may become more acute with prolonged use.
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</li>
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<li>Battery life may be regressed in this release for screen-on and
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screen-off use cases.
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</li>
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</ul>
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</li>
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<li>Some <strong>apps may not function normally</strong> on Developer Preview
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2. This includes Google’s apps as well as other apps.
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</li>
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<li>This early build is not <strong>Compatibility Test Suite (CTS)
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approved</strong>. Apps that depend on CTS approved builds won’t work
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(Android Pay for example).
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</li>
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<li>This preview release supports the following devices: Nexus 5X, Nexus 6,
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Nexus 6P, Nexus 9, and Pixel C, as well as General Mobile 4G
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(Android One). Support for Nexus Player is coming soon.
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</li>
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</ul>
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<h3 id="ki">Known Issues</h3>
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<h4>Performance and battery</h4>
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<ul>
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<li>System and app performance is known to be <strong>periodically slow /
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janky</strong>, and device may become occasionally unresponsive. These
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problems may become more acute with prolonged use.
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</li>
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</ul>
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<h4>Google accounts</h4>
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<ul>
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<li>In some circumstances, there can be issues with
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<code>AccountManagerService</code> that prevent logging in to Google accounts
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</li>
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</ul>
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<h4>System update</h4>
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<ul>
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<li>Device may restart immediately after updating to DP2.
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</li>
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</ul>
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<h4>Accessibility</h4>
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<ul>
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<li>Problem with listening to text-to-speech (TTS) output when pitch is set
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near maximum level.
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</li>
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</ul>
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<h4>Bluetooth</h4>
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<ul>
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<li>Bluetooth Low Energy (LE) GATT characteristics are using the wrong write
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type and will not be sent to a remote device. Thus, for example, some fitness
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devices will not work.
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</li>
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</ul>
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<h4>Setup wizard</h4>
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<ul>
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<li>The option to restore data on a new device (or newly reset device) from
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"Your Google Account" is not actionable in the setup wizard. You must restore
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data from an existing device using NFC or set it up as a new device.
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</li>
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</ul>
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<h4>App compatibility</h4>
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<ul>
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<li>Tapping on the image of a product in the Amazon app to enlarge it causes
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the app to crash.
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</li>
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<li>"The Spectator" app crashes on launch.
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</li>
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<li>May be unable to open downloaded archives in the Downloads app.
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</li>
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<li>Calendar app crashes on docking to multi-window.
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</li>
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</ul>
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<h4>Device-specific issues</h4>
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<dl>
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<dt>
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<strong>Seed</strong>
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</dt>
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<dd>
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Data connection fails when device is switched from slot 1 to slot 2 SIM.
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</dd>
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<dt>
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<strong>Ryu</strong>
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</dt>
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<dd>
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Unable to toggle Voice Search "Always On" option.
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</dd>
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<dt>
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<strong>Shamu</strong>
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</dt>
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<dd>
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Camera pictures in portrait orientation are corrupted, except for HDR+
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photos.
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</dd>
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</dl>
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<!-- DP 1 release notes archive -->
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<h2 id="dp1">Developer Preview 1</h2>
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@@ -32,7 +248,7 @@ page.image=images/cards/card-n-support_2x.png
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</div>
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</div>
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<h3 id="general">General advisories</h3>
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<h3 id="dp1-general">General advisories</h3>
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<p>
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This Developer Preview release is for app developers only and is designed for
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@@ -68,7 +284,7 @@ page.image=images/cards/card-n-support_2x.png
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</li>
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</ul>
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<h3 id="platform">Platform Issues</h3>
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<h3 id="dp1-platform">Platform Issues</h3>
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<h4 id="performance">Performance and battery</h4>
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@@ -152,7 +368,7 @@ page.image=images/cards/card-n-support_2x.png
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Google Apps Device Policy</a> that is bundled with N Developer Preview
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does not yet support the Work Profile Security Challenge feature.
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Developers should instead use <a href=
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"https://play.google.com/store/apps/details?id=com.afwsamples.testdpc">TestDPC</a>
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"https://github.com/googlesamples/android-testdpc/releases">TestDPC</a>
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to test this feature.
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</li>
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</ul>
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