CS3 to CS4

Flash CS4 :: added features

3D transformation : We can show 2d objects in 3d space without using any external libraries or game engines !!

Procedural modeling with Deco and Spray Brush : Quickly create kaleidoscope-like effects and apply fills using the Deco tool, or randomly spray symbols across any defined area using the Spray Brush. Coool !!

Authoring for Adobe AIR : No need to install AIR separately !!

Inverse kinematics with the Bones tool : Specially for cool chain-like animation effects programmatically !!

Motion editor : for more control over timelines and key frames.

H.264 support : specially to show mp4 files on video playback componant !! i am not sure

Why AS3 ??

ActionScript 3.0 is designed to address the following goals:

• Safety: The language supports type safety so developers can write unambiguous, easily maintainable code.
• Simplicity: The language is intuitive enough for developers to be able to read and write programs without constantly consulting a reference manual.
• Performance: The language enables developers to write complex programs that perform efficiently and responsively.
• Compatibility: The language provides a short backward and forward compatibility path and a significant overlap with industry standards. ActionScript 3.0 is a dialect of ECMAScript which formalizes the features of ActionScript 2.0, adds the capabilities of ECMAScript for XML (E4X), and unifies the language into a coherent whole.