Re: [hybi] WebSocket Version Numbers
Greg Wilkins <gregw@intalio.com> Tue, 21 June 2011 23:40 UTC
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Date: Wed, 22 Jun 2011 09:40:24 +1000
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From: Greg Wilkins <gregw@intalio.com>
To: Peter Saint-Andre <stpeter@stpeter.im>
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Cc: hybi@ietf.org, Bob Gezelter <gezelter@rlgsc.com>
Subject: Re: [hybi] WebSocket Version Numbers
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On 21 June 2011 23:56, Peter Saint-Andre <stpeter@stpeter.im> wrote: > On 6/21/11 7:10 AM, Bob Gezelter wrote: > Once again I recommend borrowing from the text in RFC 6120 if > appropriate, see Section 4.7.5... +1 although I think we must now also say that a single integer should considered a minor version with major version being 0. So 8 == 0.8 cheers > ### > > The numbering scheme for XMPP versions is "<major>.<minor>". The > major and minor numbers MUST be treated as separate integers and each > number MAY be incremented higher than a single digit. Thus, "XMPP > 2.4" would be a lower version than "XMPP 2.13", which in turn would > be lower than "XMPP 12.3". Leading zeros (e.g., "XMPP 6.01") MUST be > ignored by recipients and MUST NOT be sent. > > The major version number will be incremented only if the stream and > stanza formats or obligatory actions have changed so dramatically > that an older version entity would not be able to interoperate with a > newer version entity if it simply ignored the elements and attributes > it did not understand and took the actions defined in the older > specification. > > The minor version number will be incremented only if significant new > capabilities have been added to the core protocol (e.g., a newly > defined value of the 'type' attribute for message, presence, or IQ > stanzas). The minor version number MUST be ignored by an entity with > a smaller minor version number, but MAY be used for informational > purposes by the entity with the larger minor version number (e.g., > the entity with the larger minor version number would simply note > that its correspondent would not be able to understand that value of > the 'type' attribute and therefore would not send it).
- [hybi] WebSocket Version Numbers Bob Gezelter
- Re: [hybi] WebSocket Version Numbers Iñaki Baz Castillo
- Re: [hybi] WebSocket Version Numbers Peter Saint-Andre
- Re: [hybi] WebSocket Version Numbers Greg Wilkins
- Re: [hybi] WebSocket Version Numbers Ian Fette (イアンフェッティ)
- Re: [hybi] WebSocket Version Numbers Bob Gezelter
- Re: [hybi] WebSocket Version Numbers Julian Reschke