[OpenID] The delegation story in OpenID 2.0

Dmitry Shechtman damnian at gmail.com
Thu Jan 18 23:49:09 UTC 2007

> OpenID2 is intended to be backwards-compatible with 1.1.

If it is in fact backwards-compatible, it shouldn't introduce new tags.

> However, if a RP wishes to use some extra functionality that was
> added in 2.0, it would be useful for it to determine the capability
> of it's peer during discovery. This is the reason for the different
> tags  for v1/v2 HTML discovery.

Capabilities should be determined by the XRDS. I believe that was its exact


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