Finally, lets talk about what to do specification & status wise
for the old VSA format, should we adopt something like what I
proposed. I think the options are as follows:
1. Make it illegal, i.e., MUST NOT use. Equipment that gets
updated would suddenly stop working when someone sends
it an old format VSA. We clearly don't want this.
2. Keep it as it is, no change in behaviour or status.
3. Make the use of the old format a SHOULD NOT for new attributes.
Possibly combined with some status change of the old format,
maybe "historic".
4. Make the use of the old format a MUST NOT for new attributes.
This may be too strong as well.
So, I think we want something along the lines of 2 or 3. Personally,
I would go for a "SHOULD NOT".