Welcome to the latest Flash Runtime version 21 beta! We've been hard at work adding new features to Flash Player and AIR and we're looking forward to receiving feedback from our development and Flash Player community.
This beta release includes new features as well as enhancements and bug fixes related to security, stability, performance, and device compatibility for Flash Player 21 and AIR 21. For full details, please see our release notes.
- Media Auto Play for iOS & Android
Starting AIR 21, we are introducing Media Auto Play support for AIR iOS & Android applications. Using this feature, ActionScript developers can enable media auto play inside. To enable this, autoplay should also be enabled in the HTML5 video tag. (More info on HTML5 StageWebView video tag : http://www.w3schools.com/tags/tag_video.asp).
Please use swf-version 32 or greater and namespace 21.0 or greater to access this feature.
var webView:StageWebView = new StageWebView();
webView.stage = stage;
webView.viewPort = new Rectangle( 0, 0, 400, 300 );
webView.mediaPlaybackRequiresUserAction = false;// To enable autoplay in given web view
- Android StageWebView debugging
- GPU Memory Information In Context3D
When a Context3D object is created, developers allocate memory for various Stage3D structures which includes index buffers, vertex buffers, textures, and programs. Prior to Flash and AIR 21, the only way to verify the memory allocated by the current Context3D is through values displayed by Scout. With the release of Flash Player and AIR 21, a new property of context3D class called "totalGPUMemory" has been introduced which provides the sum of gpu memory used by the index buffers, vertex buffers, textures, and programs created through Context3D.
The total value can be obtained by property "Context3D.totalGPUMemory;".
The value of this property is in bytes and its default value is 0. The information is only provided in direct mode on mobile and in direct and gpu mode on desktop ( On desktop computers, using <renderMode>gpu</renderMode> will fallback to <renderMode>direct</renderMode>). This property can be used when the SWF version is 32 or more .
- [iOS] Fails to link ImageIO.framework when targeting iOS (4113460)
- [Android] GPU mode apps crash on devices with Tegra K1 GPU. (4110848)
- Android 6 : Stage3D AIR application fails to return from background (4075177)
- ATF textures (with JPEG Compression) are not rendered properly on MALI GPU. 
- Multiple security and stability fixes
- [iOS][Win] IPA packaged on Windows machine cannot be submitted to the Apple App store. Error "This build is invalid" occurs in iTunes connect.
About the Beta Channel
If you would like real-time notification for announcements related to the AIR Beta Channel please follow the Flash Runtime Announcements forums by choosing "Follow this forum" from the right-hand menu on the Forums page.
You can find instructions for getting started with this release here: AIR Labs Page