Version history
---------------
+[2.1.1] - 2021-03-09
+
+* Take DBAAS multi-channel publishing Redis modules into use.
+
+[2.1.0] - 2020-08-26
+
+* Add support for notifications
+
+[2.0.4] - 2020-05-13
+
+* Enhance SDL API set() function argument validation to cover also dictionary items.
+
+[2.0.3] - 2020-01-22
+
+* Add a new SDL storage API function `is_active()` to check healthiness of SDL instance.
+
+[2.0.2] - 2020-01-14
+
+* Version bump.
+
+[2.0.1] - 2020-01-13
+
+* Add a fake database backend implementation to be used only for testing
+ purposes when the real DBAAS database service is not available.
+
+[2.0.0] - 2020-01-03
+
+* Change find_keys() and find_and_get() API functions to support glob-style
+ regular expression in a key search pattern. API backward incompatible change.
+* Remove 'atomic' parameter of find_and_get() API function. API backward
+ incompatible change.
+
+[1.0.2] - 2019-12-18
+
+* Take Hiredis package into use in Redis database backend.
+* Add unit tests for configuration handling.
+
[1.0.1] - 2019-12-06
* Version bump.
References
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