docs: changelog

CHANGELOG.md

@@ -76,6 +76,10 @@ Release
 - ```Object.asdict()``` now provides also frame intervals and object data pointers, if the frames from the scene are provided
 - ```Scene.fromdict()``` for loading a scene from a dictionary
 
-## 3.0.1
+### 3.0.1
 - ```LoaderUnderstandAi``` now passes the warnings from the ```LoaderRaillabel``` onto the user
 - ```LoaderUnderstandAi.load()``` ```validate``` parameter defaults to ```False``` now
+
+## 3.1.0
+- ```LoaderUnderstandAi``` now includes warnings for duplicate annotation id and duplicate frame id
+- ```LoaderRaillabel``` now includes a warniing for duplicate frame id