Just got this in early this morning. Here's the official release notes for L186: 1. Support added for the DishPro+44 switch. 2. Support added for a cascaded DishPro 34/DishPro 21 switch configuration and for a cascaded DishPro+44/DishPro 21 switch configuration. 3. Support added for the DishPro+ Twin LNB. 4. Fixes for OTA channel losses (ie "Channel Not Found..." messages. 5. Some Timer fixes, although there are still a few issues being investigated and tested. 6. Fix for Auto-Tune/VCR timer bug with analog OTA stations. 7. Support added for the DishPro+ Separator - the device that lets you connect one satellite line from your DP+44 switch to your 921 to connect both tuners.