Updated file for 5.4.0 release

Author: georgeajit

CHANGELOG.md

@@ -1,5 +1,18 @@
 # CHANGELOG
 
+## 5.4.0
+#### New Functionality
+
+- [#1260](https://github.com/marklogic/java-client-api/issues/1260) - CtsQueryBuilder for search is available
+- [#1280](https://github.com/marklogic/java-client-api/issues/1280) - Optic query DSL - Support for human-oriented representation of Optic query
+- [#1282](https://github.com/marklogic/java-client-api/issues/1282) - Optic enhancements - support for document matching, relevance, multiple groups
+
+#### Improvements and Bug Fixes
+- [#1256](https://github.com/marklogic/java-client-api/issues/1256) - Clear collections is not working in Java API
+- [#1268](https://github.com/marklogic/java-client-api/issues/1268) - Gradle wrapper upgrade to 6.7
+- [#1269](https://github.com/marklogic/java-client-api/issues/1269) - Increased concurrency for DMSDK QueryBatcher
+- [#1283](https://github.com/marklogic/java-client-api/issues/1283) - QueryBatcher fails when using path range query
+
 ## 5.3.1
 #### Improvements and Bug Fixes
 - [#1206](https://github.com/marklogic/java-client-api/issues/1206) - README update to JCenter url