Extend SharePoint Client Object Model for SystemUpdate method

Question

Is there a way to extend SharePoint client object model and add ListItem.SystemUpdate method?

Answer 1

No. The CSOM is not extensible.

Answer 2

Finally SystemUpdate method is available in CSOM!!

CSOM package is 16.1.5626.1200

https://developer.microsoft.com/en-us/office/blogs/new-sharepoint-csom-version-released-for-Office-365-august-2016-updated/