Update v2.0.md

Author: Nathan Reyes

docs/changelog/v2.0.md

@@ -368,14 +368,26 @@ Fixes single use of `highlight.contentStyle` or `highlight.contentClass`
 * Adds `showDelay` and `hideDelay` options for date picker popover
 * Adds `showDelay`, `hideDelay` and `transition` options for attribute popovers
 
-### v2.1.1
+## v2.1.1
 
 * Fix explicit line-height for title
 
-### v2.1.2
+## v2.1.2
 
-## Bug Fixes
+### Bug Fixes
 
 * Fix container height in flex containers
 * Fix disabled date detection
-* Fix timezone offset calculation
+* Fix timezone offset calculation
+
+## v2.1.3
+
+### Bug Fixes
+
+* Toggle date value to null if date is re-selected and `is-required` is false. This only applies if `is-range` is false
+* Use `is-required` prop to prevent date null values on re-select or clearing input element
+* Prevent hiding picker if disabled date is selected
+
+### Enhancements
+
+* Shortens picker popover hide delay to prevent multiple rapid date selections