docs: Updated Support page for L Developer Preview.

@jd:body

<p>&nbsp;</p>

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<p>If you've encountered bugs or have feedback about the L Developer Preview,

create an issue on our bug tracker.</p>

<h2 id="ReleaseNotes">Release Notes</h2>

<p>June 25, 2014 - Initial Release of the L Developer Preview</p>

<h3 id="UserInterface">User interface</h3>

<ul>

<li>If your app launches an activity with

{@link android.app.Activity#startActivity startActivity()}

and an {@link android.content.Intent} set to

{@link android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET}, the

activity shows up as a separate task in the Recent apps screen. This is the

same behavior as though your app used {@code Intent.FLAG_ACTIVITY_NEW_DOCUMENT}

(see <a href="{@docRoot}preview/api-overview.html#Recents">Concurrent

documents and activities in the Recents screen</a>). If you want your activity

to remain in the same task that launched it, use

{@link android.app.Activity#startActivityForResult

startActivityForResult()} instead.</li>

<li>System-rendered shadows for user interface (UI) elements in views may

appear with visible spiky edges. To avoid this visual artifact, use a higher

<a href="{@docRoot}preview/material/views-shadows.html#elevation">view

elevation</a>.</li>

<li>On very tall or wide views, view shadows may appear with additional rough

visual artifacts around the view edges. To minimize this, avoid using view

shadows with very narrow views.</li>

<li>The {@code android.graphics.drawable.RippableDrawable} class does not

respond to pointer location changes, except when the drawable is set as a

{@link android.view.View} background.</li>

</ul>

<h3 id="Multimedia">Multimedia</h3>

<ul>

<li>The {@code android.hardware.camera2} APIs are supported only on Nexus 5

devices.</li>

<li>Saving a DNG file with the new {@code android.hardware.camera2.DngCreator}

API fails if lens shading compensation map generation is not enabled. To

capture images to DNG files, add the following code when creating your capture

requests:

<pre>

CaptureRequest.Builder stillCaptureRequest =

        mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);

stillCaptureRequest.set(CaptureRequest.STATISTICS_LENS_SHADING_MAP_MODE,

        CaptureRequest.STATISTICS_LENS_SHADING_MAP_MODE_ON);

</pre></li>

<li>Portions of the internal audio pipeline do not support floating-point format.</li>

<li>The {@code android.media.AudioTrack.write(float[], int, int, int)} method

currently does not work. Use the

{@link android.media.AudioTrack#write(short[], int, int)

AudioTrack.write(short[], int, int)} method instead.</li>

</ul>

<h3 id="UserInput">User input</h3>

<ul><li>The System UI may crash unexpectedly while the device is charging, if

	the locale is set to {@code fr} (FRENCH).</li></ul>

<h3 id="Wireless">Wireless and Connectivity</h3>

<ul><li>The {@code android.bluetooth.le} APIs are supported only on Nexus 5

devices.</li></ul>

<h3 id="Enterprise">Enterprise</h3>

<ul>

<li>The device may crash unexpectedly in these situations when using

Android for Work functionality:

<ul>

<li>The user attempts to share a webpage (via <strong>Menu &gt; Share</strong>)

from a non-managed Chrome app to a managed Gmail app.</li>

<li>The user attempts to share a webpage via Bluetooth from a managed Chrome app.</li>

<li>The user attempts to share a webpage via Android Beam from a managed Chrome app.</li>

</ul>

</li>

<li>Deleting the managed work profile (profile owner) may take several minutes

to complete. You cannot create a new managed profile until the deletion

operation is over.</li>

</ul>