HTML accessibility improvements

Hi one of the new thing in hype was listed in hype 3 was "HTML accessibility improvements"
can you tell was what they are as Ive looked and can’t find any thing on it.
many thanks
jason

Specifically in the Identity inspector, you are now able to choose to include an element within keyboard navigation and set the tab index. This is along with being able to set the alternate text (which existed for awhile).

Additionally in some places we set aria -busy, -hidden, -live, and -flowto tags.