Garmin has issued a new update for the Fenix 6 series that introduces plenty of changes to the former flagship smartwatch. Rolling out as version 20.82, the update adds support for Connect IQ system 5 and an Endurance Horseback Riding Activity, among other changes.
https://www.notebookcheck.net/Garmin-Fenix-6-series-receives-a-substantial-update-including-support-for-Connect-IQ-system-5.611733.0.html