Use caution when installing Flash Player ‘Square’ on production machines,” the software company explains. “Because this is a preview version of Flash Player, we don’t expect it to be as stable as a final release version of Flash Player. “We have made this preview available so that users can test existing content and new platforms for compatibility and stability,” says Adobe. In addition to bringing 64-bit support on all platforms, Square specifically adds enhanced support for Microsoft Internet Explorer 9 beta on Windows machines. Windows and Linux versions are, of course, readily downloadable as well. Dubbed 'Square' the plugin enables native 64-bit support on supported hardware, but is also available for 32-bit systems. have released a preview release of their Flash Player for Mac OS X.