The interesting change is not another desktop-shell release. Noctalia has moved plugin logic away from the older QML-centric model into isolated scripting runtimes, creating a clearer extension boundary while still treating plugins as trusted code.
Quattro’s unified programmable shell is a real architecture change rather than a theme refresh. Omarchy 4.0.2 now hardens package, installer, SSH and input paths, while current user reports of Quickshell crashes and a runaway-memory event illustrate the new central shell’s blast radius.