January 24, 2013
Proscenium is now open-source and available on Github: https://github.com/graysonlang/proscenium and will no longer be available for download from Adobe Labs.
June 13, 2012
A new release of Proscenium is now available with enhanced features. Proscenium is an ActionScript 3 code library built on top of the Adobe® Flash® Platform Stage3D APIs that allows for rapid development of interactive 3D content.