[hybi] WebSocket Version Numbers

["Bob Gezelter" <[e-mail]>]

I?aki, Julian, Salvatore, and all,

Some may consider version number information an anti-pattern, but I
believe that this belief is misplaced.

Version numbering becomes a problem when it is a stalking horse for poor
design and very incompatible dialects. It is these fundamental
incompatibilities that are the true anti-pattern. Properly implemented
version number identification is an important tool for troubleshooting
problems caused by the need to maintain backward compatible operations
with a wide collection of client and server systems, who almost
certainly cannot be upgraded on a synchronized schedule.

Indeed, systems that externally implement version number based
restrictions experience far fewer problems than systems without such
checks.

I would suggest that the final accepted RFC use a major/minor revision
scheme of 1.0. A future RFC would have a revision number of 2.0.
Intermediate drafts would have a minor version increment (e.g., 1.1,
1.2, ...).

- Bob Gezelter, http://www.rlgsc.com