Updated working drafts

Hi folks,

 

As mentioned on the last call, new working drafts of the following documents
are now available:

 

*	EPUB 3.3 <https://www.w3.org/TR/2021/WD-epub-33-20210406/> 
*	EPUB Reading Systems 3.3
<https://www.w3.org/TR/2021/WD-epub-rs-33-20210406/> 
*	EPUB Accessibility 1.1
<https://www.w3.org/TR/2021/WD-epub-a11y-11-20210406/> 

 

Refer to the change log section of each document for a list of substantive
changes since the last release.

 

Matt