For those unfamiliar with the W3C: Working Drafts are essentially just "drafts with stable URLs for review purposes and historical interest". First Public Wor

For those unfamiliar with the W3C: Working Drafts are essentially just "drafts with stable URLs for review purposes and historical interest". First Public Working Drafts also have consequences under the W3C Patent Policy, primarily starting a timer under which any participant of the group has to say they wish to exclude any patents they hold from the W3C royalty-free grant.