| V4.1.408 | Bug fixes | If firmware upgrade from v3.x.xxx or before, please upgrade to v3.9.389 at first. | 
| V4.1.406 | Add multi-display zone function, and corresponding CLI command | Follow the update sequence listed below. 1. Upgrade to v3.5.344
 2. Upgrade to v3.9.389
 3. Upgrade to v4.1.406
 | 
| V3.9.389 | Step version for V4.1.406 | Please upgrade to this version first, in order to upgrade to V4.1.406 | 
| V3.5.341 | Need to change password when first log in, followed California law |  | 
| V3.4.338 | 1. Support VK Unizon 2. Support VM App
 3. Add Connection Table and other features in Web GUI
 4. Bug fix
 |  |