CHANGELOG.md in groupdate-5.1.0 vs CHANGELOG.md in groupdate-5.2.0

@@ -1,4 +1,9 @@
+## 5.2.0 (2020-09-07)
+
+- Added warning for non-attribute argument
+- Added support for beginless and endless ranges in `range` option
+
 ## 5.1.0 (2020-07-30)
 
 - Added `n` option to minute and second for custom durations
 
 ## 5.0.0 (2020-02-18)