New hacks, Splitflap and Romanboy. There are some fun, physical-glitch behaviors in splitflap. Keep looking.
Better detection of user activity on modern (ha) GNOME systems.
Sonar now does asynchronous host name resolution.
Vastly improved Unicrud and Z̧"̘̖̫̱̖͉̬͈̥͔̳͎̝͜͡A"͍̹̮̺͓̤̺̺̖̤̥̖͍͎̙̫̫͙̜L͉̹̙͎̻̱̳̦͢͞Ǵ̶̷̛̠̠͕̯͖͈̟̝̮ͅǪ̩͔̪̲͍̹̩͕̕͠͝ͅ support.
Performance improvements on MacOS and iOS.
The Android port is coming along nicely. It's not quite to the point where it's time for me to post an .apk file yet, but it's getting there. If you have an Android development system, please give it a spin and let us know how it works for you. xscreensaver/
And, you know, other stuff.
XScreenSaver 5.33 out now. iOS version, too.