One of my favorite changes coming in WordPress 4.2 is a new accessibility API to help with communicating changes on the page to Screen Readers. Core is using it in a number of places (including shiny updates) to improve the experience for users of screen readers. I’m excited to see plugins start taking advantage of it as well. The first step in accessibility is making something usable. The second is making sure the experience is top notch. This helps support step two.