snapshot-get-iter with ManageOntap.dll is no longer returning rows after an upgrade

[MonicaOfDatabank]

Our NetApp was upgraded. We had an integration written in .Net using the ManageOntap.dll to pull snapshot info by volume using NaElement snapshot-get-iter. That integration was written against version 5.4. Since the upgrade to 9.8, the queries return 0 records.

I've attached examples of requests and responses. 
Is there something I can update to get these queries returning results again or should I just look into using the rest api? I can't seem to find an updated version of the ManageOntap.dll. Is it still supported?

[MonicaOfDatabank · Accepted solution]

I figured this out. We're using "state" in our query. This seems to have been removed from the API. When I remove it from the query, I get results.