Treat accessibility as continuing website work
Accessibility belongs in ongoing website maintenance as well as redesign and redevelopment. The Frameworks refreshed the Estorick Collection's website in 2017 to keep pace with a changing technology landscape, producing a site that was more accessible and responsive than its predecessor. The Frameworks also describes redesigning and redeveloping the museum's website, and continues to provide website maintenance.
For teams deciding when to act, the practical approach is to review accessibility when the website or its underlying technology changes, rather than treating launch as the end of the work. The Frameworks argues that designers and developers should stay alert to technical advances and collaborate from design through development and execution. More powerful browsers do not make inclusion automatic.
Smashing Magazine reported in 2025 that web development teams put automated accessibility scanners into continuous integration and use semantic roles and accessible names in UI tests to help prevent regressions. Such checks make accessibility part of continuing development, alongside the collaboration needed to keep experiences usable.
Sources: The Estorick Collection at 25, Designing and developing web experiences for everyone