Thank you for your purchase of TP-LINK products! The releases of this disk is shown below: ================================================================================ P/N: CD141A5 Version: 1.3 Date: 2012-11-12 - Add a file for TL-MR3040 (containing the User Guide for TL-MR3040). ================================================================================ P/N: CD141A3 Version: 1.2 Date: 2012-07-02 - Add a file for TL-MR3420 (containing the User Guide for TL-MR3420). ================================================================================ P/N: CD141A2 Version: 1.1 Date: 2012-05-09 - Add User Guide for TL-MR3220. ================================================================================ P/N: CD141A1 Version: 1.0 Date: 2012-02-24 - First release: User Guide for TL-MR3040. ================================================================================ New versions of the Driver or User Guide may be released. Please pay attention to our website for the new versions. Website: http://www.tp-link.com