Update can be downloaded through Garmin Express, or Garmin Connect Mobile, pending the rollout.
Change Log from 4.10 - 4.20
-Added the ability to rate the perceived effort and feel of a Run or Bike activity. The prompts appear during activity save. Select an activity, and go to Options > Self Evaluation for options.
-Fixed a bug that could cause crashes when saving an activity.
For questions or concerns regarding the update or features, please create a new thread.