+2023 Oct 4; version 4.9.2
+ Fixes some stability issues seen during route table update.
+ Dont allow clean old_rtable until it's reference count is really 0.
+ Added more faster recognition for connect failure so route table
+ update will not stuck so long in preparing new rtable.
+ rtgate lock is not needed to init and destroy continouosly.
+
+2023 May 28; version 4.9.1
+ Fixes IPv6 support for binding to IPv6 interfaces (RIC-985)
+
+2023 Feb 14; version 4.9.0
+ Added new message type for RIC subscription delete required
+
+2022 Nov 10; version 4.8.5
+ Fixes for errors detected by source code scanning
+
+2022 May 11; version 4.8.3
+ Added config transfer related message types (RIC-638)
+
+2022 January 17; version 4.8.2
+ Fixes routing statistics printout crash (RIC-872).
+
+2022 January 7; version 4.8.1
+ Re-enables RMR libary's module tests (RIC-861).
+ Creates a new unit test for the debugging rmr rx queue API.
+ Fixes some bugs and possible memory likeage in SI95 code.
+
+2021 December 2; version 4.8.0
+ Fixing memory leak in python support function (RIC-858).
+ New API added for debugging rmr rx queue (RIC-838).
+
+2021 April 22; version 4.7.4
+ Beef up unit testing in SI package and fix a few static analysis
+ bugs. (RIC-777)
+
+2021 April 19; version 4.7.3
+ Correct flag check bug in route table functions (RIC-777).
+
+2021 April 9; version 4.7.2
+ Ensure that route table update received from route generator is not
+ applied before a full route table is received.
+
+2021 April 2; version 4.7.1
+ Correct issues found during static code analysis.
+