I've been asked to use CSOM to modify the top (global) navigation of a 2013 site that uses the 2010 UI. Can I use the 2013 CSOM for this, or am I stuck with 2010? Or is there a better approach via JSOM?
I was able to use the 2013 CSOM to edit the navigation in a SP 2013 site that used the 2010 UI. This article was very helpful although the site I worked on is hosted on-premise.