Carli Spina has published "WCAG 2.1 and the Current State of Web Accessibility in Libraries " in Weave.
Here's an excerpt:
Ensuring the accessibility of web content is key to ensuring that users with disabilities have equal access to online information and services. However, as a review of the literature demonstrates, even in the face of legal requirements, accessibility problems persist across the web, including in the online content created and shared by libraries. This article examines the new success criteria in the recently released WCAG 2.1, considers the opportunity they present for libraries to improve the user experience for users with a broad range of disabilities, and proposes steps to improve compliance with WCAG and online accessibility more broadly.