Hey Patrick,
The ONTAP 9 API documentation is here. The docs I just linked have a "What's Changed" section which shows new APIs and changed parameters.
Note that there's two documentation sets, both call themselves "NMSDK". The first is the one that comes with the NMSDK download...this documents the NMSDK itself. The second is on the "A-Z Docuementation" page with the label "NetApp Manageability SDK" and is actually the ZAPI documentation.
Hope that helps.
Andrew
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