LoRaWAN® Specification v1.0.3

The LoRaWAN1.0.3 now fully supports unicast & multicast classB devices.
The classA and classC sections are unchanged compared to LoRaWAN1.0.2 with the exception of a new MAC command “DeviceTimeRequest” used to synchronize the real time clock of a device.
For devices operating in classA or classC, there is no need to upgrade to LoRaWAN1.0.3
However, If you plan to use classB in your devices then you should use LW1.0.3
The LoRaWAN1.0.3 ClassB section is forward compatible with the LoRaWAN1.1 classB.

LoRaWAN® 1.0.3 Specification

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Technical Committee	Marketing Committee	Certification Committee
– Academia Work Group	– Analyst Program Task Force	– Gateway Test and Measurement Guidelines Task Force
– App Payload Codec API Task Force	– Device & Solution Makers Forum	– LCTT DevOps Work Group
– Backend Interface Task Force	– Network Capacity Task Force	– LoRaWAN Interoperability Work Group
– CSMA Task Force	– Network Operators Forum
– DNS Task Force	– Smart Cities and Buildings Work Group
– Device Migration Task Force	– Smart Industry Work Group
– FUOTA	– Smart Water & Energies Work Group
– GS1 Task Force
– Link Layer Task Force
– LoRaWAN over Satellites Task Force
– NS-GW Interface Task Force
– Network Discovery Task Force
– Plug-and-Play Task Force
– PolDev Task Force
– Regional Parameters Work Group
– Relay/D2D Task Force
– Security Work Group

LoRaWAN® Specification v1.0.3

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