Update changelog

Author: negruhoreabyborg

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [10.1.1] - 2023.07.13
+### Fixed
+- null verification for nullable properties before validating constraints
+
 ## [10.1.0] - 2023.03.21
 ### Added
 - support for optional nullable scheme properties