0.38.0 - a mouse jiggler
You leave a machine running something long, come back, and the screen is locked - so the thing you wanted to look at is behind a password you now have to type over a KVM.
Set an interval in Settings and the device nudges the pointer one pixel and puts it straight back that often. Nothing moves on screen, and the target counts it as somebody being there.
It runs on the device rather than in the browser on purpose: the case it exists for is a machine nobody is sitting in front of, and a jiggler in a browser tab goes away with the tab. It stands aside whenever you are using the mouse yourself, and does nothing when no target is attached. Off by default.
The rest of the release is the update popup: it no longer sits lit up behind the full-screen restart panel with its own progress bar visibly filling through the frosting, and long version names no longer push it wide enough to scroll sideways.