I was under the impression that they were going to decommission the EdgeRouter line as more and more features get added to their UniFi line.
(I have both and my EdgeRouter X feels definitely in “maintenance mode”).
(I have both and my EdgeRouter X feels definitely in “maintenance mode”).
Software wise, the UniFi line does seem a little more actively developed, but new EdgeRouter products are and have been coming out (like the 10Gbit EdgeRouter Infinity a little while ago, and the new EdgeRouter 4 etc.). I think a lot of the software slowness might have been that some of the devs on the EdgeMax team left (judging by the staff posting on the forums), so it's probably been taking a while for the new devs to get up to speed.