Hello,
The currently supported stacks by KW24D are: Thread, 802.15.4 MAC and SMAC.
Currently the available devices with ZigBee support are the JN516x family. ZigBee 3.0 supported on KW41Z , nonetheless, currently there are no plans to support this stack in KW24D.
Still, We do not provide the source code of the libraries of the framework.
Sorry for the inconveniences this might cause you
Regards,
Estephania