Editing ActionScript (section)

====2006–2020: ActionScript 3.0====
In June 2006, ActionScript 3.0 debuted with [[Adobe Flex|Adobe Flex 2.0]] and its corresponding player, [[Adobe Flash Player|Flash Player 9]]. ActionScript 3.0 was a fundamental restructuring of the language, so much so that it uses an entirely different [[virtual machine]]. Flash Player 9 contains two virtual machines, AVM1 for code written in ActionScript 1.0 and 2.0, and AVM2 for content written in ActionScript 3.0. ActionScript 3.0 added limited support for [[hardware acceleration]] ([[DirectX]], [[OpenGL]]).

The update to the language introduced several new features:
* [[Compile-time]] and [[Run time (program lifecycle phase)|run-time]] type checking—type information exists at both compile-time and runtime.
* Improved performance from a class-based inheritance system separate from the prototype-based inheritance system.
* Support for [[Java package|packages]], [[namespace]]s, and [[regular expressions]].
* Compiles to an entirely new type of [[bytecode]], incompatible with ActionScript 1.0 and 2.0 bytecode.
* Revised Flash Player [[API]], organized into [[Java package|packages]].
* Unified [[event handling]] system based on the [[DOM Events|DOM event handling]] standard.
* Integration of [[ECMAScript for XML]] (E4X) for purposes of [[XML]] processing.
* Direct access to the Flash [[run-time system|runtime]] display list for complete control of what gets displayed at runtime.
* Completely conforming implementation of the [[ECMAScript]] fourth edition draft specification.
* Limited support for dynamic 3D objects. (X, Y, Z rotation, and texture mapping)