Version Handling [ was OpenID status update ]

Paul Crowley paul at
Mon Jun 6 11:47:00 PDT 2005

Brad Fitzpatrick wrote:
> I don't like the idea of failing on unknown parameters... that makes it
> hard to gently upgrade in the future.

Yes, I favour this as well - I meant 2 when I said 1.  All of my 
backwards-compatibility plans depend on this.

>>That's probably too complex though.
> Then let's favor 2 both ways.

This means that the server should never use an essential "advanced 
feature" unless explicitly invited to by some consumer setting.  That's 
acceptable.  We can add "openid.capabilities" if it's needed - something 
that option 1 would make impossible...
\/ o\ Paul Crowley, paul at

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