As covered earlier in the week on Phoronix, KWin in Plasma 6.8 has implemented support for server-side drop shadows . This is useful for apps like Steam and Sicord.
Merged this week, KDE System Monitor with Plasma 6.8 will allow easily assigning processes to specific CPUs or groups of CPUs. Convenient CPU affinity handling from within KDE's System Monitor:
Meanwhile for the Plasma 6.7 series, Plasma 6.7.4 is fixing a "somewhat common" way that Discover could crash while installing updates.
For the KDE Frameworks 6.29 is an improvement to help reduce Plasma memory usage thanks to changes in KSVG and KGUIAddons around caching.
More details on these interesting KDE Plasma changes for the week via This Week in Plasma .