I am using RoboHelp server 9.0 to publish my Help with RoboHelp 2017. But now since Flash is no longer supported in 9.0, I want to upgrade it to server 11.0. How do I upgrade ? Do I need to purchase or just migrate the files. Also is Server 11.0 compatible with RoboHelp 2017?
See https://helpx.adobe.com/contact/enterprise-support.other.html#robohelp for your support contact options. They're your best bet for RHServer info. Remember, this is just a user-to-user forum with occasional Staff interactions.
Pretty sure the answer will be you need to upgrade both but follow Jeff's advice.
See www.grainge.org for free Authoring and RoboHelp Information