The inline editing looks like a very small cosmetic change. I don't see how this is any different from cut and pasting in a link the old way. You still click the button above to open the feature to type in the link. I haven't tried it yet so maybe I'm just not seeing it from the video.

As a non-developer, and someone who just runs my own sites, there just isn't anything in this update that seems to make any real change to WordPress. Are they just updating the version for the sake of updating it on schedule now?

I'm not meaning this as a complaint. Just a puzzled observation. There are other things which I've posted to the forums about but don't get a reply (more functions for PressThis and a fix for the way it continues to double upload images, etc.) and no one else seems to consider them important. But, this new inline thing... that mattered?

Embedding social media is really low on my list too. I don't really want more bloated stuff slowing up my site and having to be fussed over when it stops working. I skip it and just do a screen capture if I really want to show something from Twitter.