I'm guessing they haven't, but I'm also a bit worried. At the time of writing (06/2022) the last software update came some time in September last year. And since software is rarely ever finished, I'd like to see more updates for sure. That said, the firmware is pretty good. A lot of earlier quirks (like the robot lawn mower occasionally leaving its lot for the neighboring robot's, or difficulties figuring out which way the border is) have been ironed out. The mobile app (for Android) has gotten its last update in May 2022, but it's still a bit cumbersome and not the most stable piece of software I've ever encountered. All said, Worx might simply think the mowers are at a good place. And they're still actively sold.