Updating Tags on Work Items in TFS 2013 using API?

Question

I have some code where I try to set some tags on some work items using the TFS API:

        foreach (KeyValuePair<string, WorkItem> kvp in dict)
        {
            kvp.Value.Tags = "test";
        }

But when I run the above I get:

{"TF26194: The value for the field 'Tags' cannot be changed. "}

But maybe they are readonly?

https://visualstudio.uservoice.com/forums/121579-visual-studio/suggestions/3933921-allow-editing-work-item-tags-in-visual-studio

Or do I need to ugrade my server to use 2013 update 2: http://blogs.msdn.com/b/bharry/archive/2014/02/05/vs-tfs-2013-2-update-2-ctp-released.aspx

Answer 1

In order to edit Tags in the API you need at least TFS 2013 Update 2.