Update change-log.md

change-log.md

 # Change Log
 
+## 27 July 2022: V 0.2.9
+
+### Bug Fixes:
+* Resolving issue related to conflicts between intermediate and additional elements while importing any mapping from X3ML code (fragment code import, whole X3ML import, Zip file import);
+* Resolving issue related to adding native additional in certain cases;
+
 ## 25 July 2022: V 0.2.8
 
 ### New or Improved Functionality: