What's new in Emacs 28?

I've just updated to Emacs 28. (Updating to Emacs 28 on Linux Mint).

What's new and of interest to me?

A couple of references:

• from the manual: New in Emacs 28 (GNU Emacs FAQ)
• the mother of all annotations of the release info: What's New in Emacs 28.1? - Mastering Emacs

The main thing seems to be the addition of native compilation, which various sources state will give you a big speed boost. That'd be nice, although I've never really had a problem with speed.

LATER…: I'll be honest, it doesn't feel any faster, and possibly slower? Maybe it's because I'd compiled it from source previously and that was faster?

Oh: inspecting system-configuration-options in Emacs shows that it's not compiled with native compilation available. And then, looking at https://launchpad.net/~kelleyk/+archive/ubuntu/emacs, I see there's packages specifically for the nativecomp version. I wonder why it isn't the default. I'll try it.

OK, so the nativecomp packages seems way slower than the standard package. Not sure why, not got time to look right now. Back to the standard package then!