In Databricks documentation  for  workflow / Jobs /REST API 2.1 /  Trigger a new job run - some fields in the request body are stated as depreciated, for example notebook_params, jar_params.  In  Jobs REST API 2.2 those fields do not appear at all.

However I can still run Databricks jobs with notebook_params in the body using 2.1 and 2.2

Are these going to be really deprecated?   when?   will there always be backward compatibility as  the notebook_params is in use.