| Date | Version | Improvements made over the previous version |
| 26.3.2011 | 2.2 | Included STP concept, commands and labs |
| May, 2006 | 2.0 | Included more labs, and updated user interface. |
| 29.1.2005 | 1.1.1 |
Implemented separate Switch and router simulators under the menu “Simulator”. 40+ labs have been added for simulator. This would help in getting started with the simulator. Additional commands support has been provided. |
| 29.11.2004 | 1.0.0 | Initial Release |
