typeid element in UCN output

Hi,

I've recently noticed the relatively new addition of the 'typeid' 
element in UCN output such as:

<message type="error" ref="http://example.css">
     <context line="10">.clearfix</context>
     <title>Parse Error {*zoom:1;</title>
     <typeid>generator.unrecognize</typeid>
</message>

I'll find this very useful in being able to categorise validation errors.

Before I start depending to heavily on it being present in validation 
results, can I just check that this is a permanent addition to the UCN 
output and not just a temporary or experimental feature?

Kind regards,
Jon Cram

p.s. As an aside, does anyone know why the the UCN output format is so 
named?

Received on Friday, 17 January 2014 09:15:58 UTC