My publicly accessible node was running 0.21 for a while because I wanted compact block filters. Now I've cut to 26 two weeks after the release because I wanted transport V2.

Sorry, I only like the shine new things 😅 

 Just FWIW, I send over 4TB monthly to the network, holding average 100-300 peers at any time. I'm listening ipv4/6, tor and i2p.