XML serialization backward compatible

1. XML Serialization is backward compatible

C#XML Serialization is backward compatible _C&C++_ Big guy tutorial

2. oriented XML The object of , Backward and forward compatible

oriented XML The object of , Backward and forward compatible

3 Java XML and JSON Binding

Java XML and JSON Binding: Extending JAXB - Representing Metadata as XML

4  Backward compatible Xml Read

c# - Backward compatible Xml Read - Thinbug

5.  object / XML Backward compatibility  

python - Yes