+2020 February 14; version 3.1.3
+ Fix bug in SIsend which was causing a core dump in some cases
+ where the application attempted to send on a connection that
+ had disconnected. (RIC-207).
+
+2020 February 6; version 3.1.2
+ Fix disconnection detection bug in interface to SI95.
+
+2020 January 31; verison 3.1.1
+ Allow route table thread logging to be completely disabled
+ when logging is turned off.
+
+2020 January 26; verison 3.1.0
+ First step to allowing the user programme to control messages
+ written to standard error. Introduces the rmr_set_vlevel()
+ function, and related environment variable.
+
+2020 January 24; verison 3.0.5
+ Fix bug in SI95 with receive buffer allocation.
+
+2020 January 23; verison 3.0.4
+ Fix bug in SI95 causing excessive CPU usage on poll.
+
+2020 January 22; verison 3.0.3
+ Enable thread support for multiple receive threads.
+
+2020 January 21; verison 3.0.2
+ Fix bug in SI95 (missing reallocate payload function).
+
+2020 January 20; verison 3.0.1
+ Enable support for dynamic route table updates via RMR session.
+
+2020 January 16; version 3.0.0
+ Introduce support for SI95 transport library to replace NNG.
+ (RMR library versions will use leading odd numbers to avoid tag collisions
+ with the wrapper tags which will use even numbers.)
+
+2019 December 9; version 1.13.1
+ Correct documentation and missing rel-notes update for RTD.
+