Backward compatible changes for namespace change

YANG
1

Hi,
Namespace change is backward incompatible. Can we really change Namespace? If yes, what is the process to make backward compatible changes for the namespace change ?

2

There is no way to make a backward-compatible change to a namespace. See RFC 7950 - The YANG 1.1 Data Modeling Language
You would need to make a non-backward-compatible change, make the necessary changes to your application(s), and have users of the northbound interfaces make changes too.