Rui Carmo
The compositing window manager is a nice touch for boards with at least 2GB of RAM, but the video drivers and other kernel updates are the nicest feature.
Even though most of my Pis are headless, the improvements are welcome, and I look forward to playing with the 64bit version (it wasn’t there yet).
It is still somewhat amazing that we can run a full blown UNIX desktop on a machine the size of a baby shoe with this degree of sophistication.