It's been a while since Kodi released their most recent major update: version 17 "Krypton". I finally got around to installing it on my Fire TV recently.
Since I upgraded to v16 a bit over a year ago, I haven't had any significant issues. So there wasn't a lot of reason to change. Also, I wanted to allow plenty of time for the add-ons that I use to be updated for the new version. So when v17 was released in early February, I didn't jump right in. In March, v17.1 was released with some minor fixes and that's what I used for my upgrade.
The actual upgrade process went very smoothly. I downloaded the Android version from the Kodi site and installed it using adbLink. Started it up and was greeted by the new user interface featuring the Estuary skin. It's different, but I didn't have any trouble finding everything that I'm used to using.
Everything carried over fine from the previous version except for Trakt.tv scrobbling of MythTV shows. That's not much of a surprise, since my modifications to the Trakt.tv add-on required some pretty specific data from Kodi and the MythTV PVR add-on. This upgrade changed how that data was presented, and for the most part the changes are for the better. It's much easier now to get information about which TV show is being played (specifically, some of the Kodi InfoLabels are being populated by the MythTV add-on). Updating my code was fairly easy, and I submitted the modifications to the Trakt.tv add-on maintainer so other people will get the same changes. Only took a couple of hours for the whole process.
The only real problem I had after the upgrade has nothing to do with Kodi itself. Around the same time, Amazon also updated the Fire TV user interface. Kodi stopped showing up on the home screen of the Fire TV, which means I had to go through the Settings menu to start it. Back in the day I used an app called Firestarter to get around this, but that's no longer an option. Fortunately, there are solutions for this. I had to try several of the things in that list but eventually I got Kodi back onto the Fire TV home screen.
This latest version of Kodi is working out fine thus far. With luck, I'll have another year before it's time to change again.