fenix 3/tactix Bravo/quatix 3 software version 7.50 as of August 5, 2016
Changes made from version 7.20 to 7.50:
Added support for Connect IQ 1.3.0 SDK. See the Connect IQ 1.3.0 SDK for a list of new features.
Added support for Apple Media Service - users can now control any active music player, e.g. Spotify, as well as volume. (requires iOS 8.0 and higher)
Added support for phone apps to subscribe for more frequent data updates.
Added support for the dog tracker widget. (Settings > Widgets > DogTrack)
Improved the accuracy of pace data for paddle sports.
Improved how sleep movement could impact intensity minutes calculations.
Improved the responsiveness of floors climbed data.
Fixed potential issues with golf scorecards and summary information.
Fixed an issue with the intensity minutes widget potentially showing dashes for high intensity minute values.
Fixed a potential issue with access to navigation while running a Connect IQ app.
Fixed a potential issue with access to app settings while running a Connect IQ app.
Fixed a potential issue with the backlight failing to turn on when using the LIGHT key.
Fixed an issue where calorie data was not being recorded correctly on a subsequent activity, after using an HRM-Tri or HRM-Swim.
Fixed a potential issue with swim workouts.
http://www8.garmin.com/support/download ... sp?id=7623