Flash Player 11.5 was part of Adobe’s push toward and high-performance rendering on the web, competing with WebGL (which was still maturing).
Version 11.5 marked the start of Adobe's move toward a more frequent update schedule (roughly every two weeks) to improve stability and respond faster to user feedback. adobe flash player 11.5
Integrated with Internet Explorer , Firefox 17+, Chrome, and Opera 11. The End-of-Life (EOL) Context Flash Player 11