Is it possible to detect which Photoshop version a brush set (.abr) file is compatible with from its binary data?
There is a open source C# programm called ABRViewer but it doesn't read version info.
Sample brushes:
http://mark-s.deviantart.com/art/Fractal-Brushes-Set-20484978
http://redheadstock.deviantart.com/art/Arcane-Circles-Symbols-Brushes-63580135