Transfer Patches
Roy Fielding: My answer was to use PATCH, of course, but the standards issue is still that there are no registered diff formats. So, I said to myself, I know how to fix that ... [via Rob Sayre]
A much more interesting question to me is whether PATCH will operate at the content level or the transfer level. Or, to put it anther way, will patch operate at the infoset level, or will it be able to be directly applied to HTML as she is written?