Yesterday we released the latest Exchange MAPICDO (March 2014) and its version is 08.03.0.8353.000. You can download it from @ http://www.microsoft.com/en-us/download/details.aspx?id=42040.
Note: Make sure to uninstall the earlier version (if you have installed it earlier) and install the latest one. For additional info, you can refer Steve’s blog post.