Set version to 2021.03.31-1.

Author: niwinz

CHANGES.md

@@ -1,5 +1,11 @@
 # Changelog #
 
+## Version 2021.03.31-1 ##
+
+- Add `if-empty` operator.
+- Update to rxjs 7.0.0-beta.13
+
+
 ## Version 2021.01.29-1 ##
 
 - Accept `nil` on `from` function.

assets/rxjs/externs.js

@@ -208,3 +208,4 @@ rxjsOperators.share = function() {};
 rxjsOperators.ignoreElements = function() {};
 rxjsOperators.subscribeOn = function() {};
 rxjsOperators.observeOn = function() {};
+rxjsOperators.defaultIfEmpty = function() {};