Update: Changelog

Author: Sambit003

docs/changes/1.x/1.4.0.md

@@ -11,6 +11,8 @@
 - Added support for PHP 8.4 by [@Progi1984](https://github.com/Progi1984) in [#2660](https://github.com/PHPOffice/PHPWord/pull/2660)
 - Autoload : Allow to use PHPWord without Composer fixing [#2543](https://github.com/PHPOffice/PHPWord/issues/2543), [#2552](https://github.com/PHPOffice/PHPWord/issues/2552), [#2716](https://github.com/PHPOffice/PHPWord/issues/2716), [#2717](https://github.com/PHPOffice/PHPWord/issues/2717) in [#2722](https://github.com/PHPOffice/PHPWord/pull/2722)
 
+- Added Support for Writer Epub3 by [@Sambit003](https://github.com/Sambit003) in [#2724](https://github.com/PHPOffice/PHPWord/pull/2724)
+  
 ### Bug fixes
 
 - Writer ODText: Support for images inside a textRun by [@Progi1984](https://github.com/Progi1984) fixing [#2240](https://github.com/PHPOffice/PHPWord/issues/2240) in [#2668](https://github.com/PHPOffice/PHPWord/pull/2668)