This time around the A50 has gotten sleeker the side rails are closed at the top and are flat, rather than ending at an angle. The A50 Gen 4, is an upgraded version of the previous A50, using the new Astro audio V2 and taking full advantage of Dolby Atmos, and it has also had a visual upgrade. The Astro A50 is back with a fresh new style.Does anyone know of the significant changes or feature additions between R14 and R20 firmware on the Astro 25 platform? Sent from my SAMSUNG-SM-G891A using Tapatalk.Maybe the auto-update feature isn't present in that firmware version. After waiting for over a week, the decoder was still stuck with the firmware from 2010. When I started it up though, I noticed that it had a very old firmware - v1.2S. Astro assured me that it would work just as well, and if anything went wrong, they would replace it FOC.