Changes made from version 12.72 to 12.73:
Added canned text reply support (Android only).
Added additional Connect IQ 3.0 features.
Fixed an issue that could cause elevation graphs to be smoothed and total ascent and descent values to be inaccurate.
Fixed an issue that could prevent sensors connected over BLE from reporting data.
Fixed an issue causing HR data for pool swim activities to be graphed incorrectly in Garmin Connect.
https://www8.garmin.com/support/download_details.jsp?id=11421#Instruct