New features include a cool take on Plasma's edit mode, keyboard LEDs that sync with accent colors, an inbuilt Remote Desktop Server that let's you access Plasma desktops over a network, lots of bug corrections and improvements.
I've had a sweet spot for KDE ever since I managed to get KDE 1 running on an SGI Indy running IRIX 6.5 at university and on my Pentium 233MMX running Slackware '96.