Facebook designers have made some subtle tweaks to how links and conversations appear on your News Feed. For comments, it’s now clearer to see who is replying to your post and it’s even easier to reply back. And if there’s a comment thread on a post between you and one of your friends, it’s easier to reply to that specific thread.
They’ve also changed the readability on your News Feed with increased color contrast on the typography, larger link previews, and larger Like, Comment, and Share buttons that are easier to tap.
And while these changes are very subtle, one thing you will notice is that profile pictures will now be in a circular shape, rather than a square, which is another readability improvement from the Facebook design team.