An upcoming AMD micro-architecture (presumably Zen 5 given the timing and history around AMD's Linux hardware enablement.) is introducing Bus Lock Trap as a feature matching Intel's existing split/bus lock detection functionality.
Longtime X.Org maintainer Alan Coopersmith with Oracle released a new version of xconsole, the program that displays an X11 window containing the messages sent to /dev/console
While GNOME landed experimental Variable Refresh Rate (VRR) support in GNOME 46 that is used by the new Ubuntu 24.04 LTS release, Canonical isn't yet encouraging users to test out this option.