+2020 July 9; version 4.1.3
+ Allow RTS messages to be sent before the arrival of the initial
+ route table. Calls to RTS (heart beat responses) prior to the
+ initial route table load could cause a crash if a framework
+ blindly assumes that RTS is valid. (RIC-589)
+
+2020 June 22; version 4.1.2
+ Fix typo in RIC Message header file.
+
+ Add document for message type constants and the scripts
+ which generate them.
+