Basically, the release notes says the same as the last three updates!
7.1 (v2.28.19) 21 July - 2016 OTA - WiFi
Updates Summon.
When activating Summon from the Park Stalk,
choose the direction of travel on the touch screen
before exiting the car.
7.1 (v2.20.30) 30 May - 2016 OTA - WiFi
Updates Summon.
When activating Summon from the Park Stalk,
choose the direction of travel on the touch screen
before exiting the car.
7.1 (v2.18.77) 17 May - 2016 OTA - WiFi
Updates Summon.
When activating Summon from the Park Stalk,
choose the direction of travel on the touch screen
before exiting the car