[openstack-tc] recommendation to deprecate XML in new major API versions

Mark McLoughlin markmc at redhat.com
Tue Jan 21 15:22:53 UTC 2014

On Tue, 2014-01-14 at 09:29 -0500, Doug Hellmann wrote:

> I would like to see an affirmative statement from the TC like "We are
> planning to start dropping XML support in APIs during Juno in order to
> focus our limited development resources" (or a later release, or "we are
> going to keep doing XML whether we like it or not") posted to the mailing
> list for feedback, rather than the open-ended "what do you want" questions
> we've been posing.

I'm generally against us closing doors and saying "we never want XML
support, no matter how much work you're willing to do on it". A ban on
XML or a "JSON is the one true representation" statement isn't what
we're trying to achieve.

We want:

  1) Clear guidance to users that XML support is known to be very week 
     and, due to lack of interest in developing and maintaining it, XML 
     support could get worse in future releases. I'm thinking XML
     support off by default, warnings in documentation, notices in
     release notes, etc.

  2) An understanding that because of the lack of active maintenance of 
     XML support, authors of new features can choose to regress XML 
     support. Semi-working XML support can't be allowed to hold up 


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