Apart from the HTC One (M7), the Butterfly S is also getting the latest Sense 6.0 update that runs on top of Android 4.4.2 KitKat. The HTC Sense 6.0 UI offers a refreshing new experience that’s found on the latest HTC One M8. You get a new BlinkFeed and a redesigned look for the Camera, Gallery and Music apps.
The software update is pushed over the air (OTA) and if you haven’t received it yet, you can check manually under Settings > About > Software Updates.
[ SOURCE ]