Might be that the kernels since 3.19 have this included: http://www.bluez.org/bluetooth-4-2-features-going-to-the-3-19-kernel-release/
Might be that the kernels since 3.19 have this included: http:// www.bluez. org/bluetooth- 4-2-features- going-to- the-3-19- kernel- release/