[Responder] Anne van Kesteren
I have the same objections to this proposal as I have had to the ISSUE-88 change proposal to allow something without any observable effect. This will only lead to confusion for authors. http://www.w3.org/2002/09/wbs/40318/issue-88-objection-poll/results In addition, this would give the opportunity for Web browsers to fragment HTML which would be a very bad thing for the Web. If we ever need versioning for HTML (and we have not since HTML was invented) we can add it at that point. Designing for a theoretical future is not at all necessary here and only complicates matters.