Other changes include the redesign of the aforementioned music app. A track progress bar has been added so that you can see how long a song has to run. Issues with the app's layout have been taken care of. For those who have been having trouble getting up in the morning, the alarm will now vibrate for 10 minutes instead of the previous 1 minute. And what would an update be without the usual bug fixes and stability improvements.
Those using their Pebble with an Apple iPhone not only need to update the Pebble firmware to version 2.2, they also have to update the iOS Pebble app to version 2.2.This update will support the music control buttons found in the firmware update, and will also support iBeacon. In addition, Bluetooth LE can be set up to allow the Pebble wearer know when he is close to an iOS user.
The Pebble Firmware update can be found once you open the Pebble smartphone app. The iOS Pebble app update is found in the Apple App Store.
Pebble gets updated firmware to version 2.2
source: Pebble via AndroidCentral