Just read this on the Traxxas FaceBook page

Quote Originally Posted by Traxxas FaceBook
Traxxas Link update tonight on iTunes! Traxxas Link is now more versatile than ever. Upgrade now to access the latest features, including:

- Full metric support for speed, distances, and temperature
- App Upgrade Detection. New update? The app will let you know, no need to visit the App Store.
- Lane Choice Indicator-if you have the faster ET in your previous round, the app lets the Race Director know you have lane choice in the next round.
- Updated help text. We're always improving!
- Plus various fixes behind the scenes.

Upgrade tonight!