Fair enough. I'll try to remember check NEWS next time.
FWIW, when I saw your initial post I immediately checked "C-h P dict"
and found it. This UI could probably use some help, and it has been
discussed in the past, but discovery is a non-trivial problem for
roughly everyone (examples: elpa/melpa, Doom, VS Code, both Apple and
Google's app stores, roughly every version of Windows since NT,
etc.). I didn't post this earlier because your OP seemed reasonably
clearly directed at the manual, but I do find it helpful in similar
situations.
Hope that helps,
~Chad