thearchivist.funW3C and WHATWG agree on one HTML development path
A 2019 agreement coordinated W3C and WHATWG work around a single version of HTML and DOM specifications.
Context and provenance
On May 28, 2019, W3C and WHATWG announced an agreement to collaborate on a single version of the HTML and DOM specifications. Their memorandum described responsibilities, publication mechanisms, and a transition plan. The event addressed the institutional question of how a foundational technology should be maintained when multiple organizations have worked on related versions. It did not introduce a new visual feature that a reader could point to on a page. Its value was in the governance behind implementation: aligning specifications can reduce uncertainty for the organizations and developers that depend on a common description of how the Web behaves.
Why it matters
Editorial perspective: Maintenance includes resolving who gets to change the rules. Agreement about a shared process can be an important technical achievement because incompatible authorities create practical costs even when everyone claims to support openness.