Firmware 6.55BETA

Changes made from version 6.52 to 6.55:
-Added support for 'Auto Do Not Disturb'. (Power Menu > Do Not Disturb > Sleep Time) Sleep and wake up times can be setup through Garmin Connect Mobile.
-Fixed a potential issue where calorie counts were being over-reported after disconnecting from a heart rate strap.
-Fixed a potential issue where one could lose their daily accrued intensity minutes when power cycling the unit.
-Fixed a potential issue with Stride Length being over-reported.
-Fixed a potential issue with the unit rebooting after transferring Workouts from Garmin Connect.
-Fixed a potential issue with the record screen being blank after ending an activity.
-Made improvements to session average distance per stroke for Standup paddle boarding and Rowing.
-Fixed a potential issue with single sport profile creation.

http://www8.garmin.com/support/download_details.jsp?id=9504