This is a page from the Cascading Style Sheets Working Group Blog. Some other places to find information are the “current work” page, the www-style mailing list, the Future of CSS syndicator, and the issue list on Github.
Do you want to know how the CSS WG works? Fantasai has written about:csswg, An Inside View of the CSS Working Group at W3C.
font-family
syntax issue is accepted, exact wording to be settled on list.
justify-self
/ justify-content
/ justify-items
(inline/main axis)
align-self
/ align-content
/ align-items
(block/cross axis)
space-between
/space-around
as keywords instead of justify
/distribute
flex-order
to order