The latest #SmartTube beta update broke the "Channel Up/Down → Speed Up/Down" key remapping. Annoying, since I use that a lot. Fortunately I can also remap speed change to D-pad Up/Down.

That changes my interactivity a bit when I'm clearing watched videos from Watch Later while watching one (and now 'watch' doesn't seem like a word), but I can live with it for a day or three until it's fixed.