Flex 4 – Adobe AIR

Flash Player was initially released around 1996. (Macromedia)

Features like animation of vector graphics.
No Audio support.

Flash player 2 released on 1997. (Macromedia)

Sound Support with Stereo Audio input.
Insertion Bitmaps.
Library support for tween between colors.

Flash Player 3 released on 1998. (Macromedia)

Insertion of Audio and compression into MP3 for reducing the size.
Improvement of animation, playback and publishing.

Flash [...]