Well, I had to update to 718.19 to do ADSB in/out using the UAT GDL88. IIRC, that GDL-88 gave me on-screen ADSB in, but if I wanted to have ES out I would have to update the LRU transponder.
What I would really like is for Garmin to allow me to use the GFC-700 autopilot with the RV-10 selected airframe. They do that with the EVO, but for the RV-10 they only have the TT Sorcerer A/P.
-Marc