Version history
---------------
+[3.0.0] - 2021-06-10
+
+* Simplify v2.3.0 notification callback and handle_events API to return received
+ event(s) only as a list type. Earlier single event was returned as a string type.
+ Notification callback and handle_events API changes are not backward compatible.
+
+[2.3.0] - 2021-06-09
+
+* Pack all the events in a channel to one DB notification to be in line with SDL Golang.
+
+[2.2.0] - 2021-05-11
+
+* Add DB backend instance selection based on namespace value to balance DB load.
+
[2.1.1] - 2021-03-09
* Take DBAAS multi-channel publishing Redis modules into use.