Few days ago Lora Alliance has announced version 1.1 of the LoRaWAN specification.
Let's have a quick look on latest capabilities:
Bi-directional end-devices with scheduled receive slots (Class B).
Security enhancements (introduced new keys).
New MAC commands (e.g. time synchronization).
Roaming support (transfer control from one LoRaWAN network to another).
Changes in handling frame counters.
Together with LoRaWAN specification there are updated:
LoRaWAN Backend Interfaces 1.0 Specification
LoRaWAN 1.1 Regional Parameters rev. A (radio parameters for LoRaWAN 1.1 devices)