I work in the frame edit window for most of an animation, and I've noticed I think with the last update that whenever I pan and zoom on a frame, then use the arrow buttons at the bottom to go to the previous/next frame, the canvas is re-positioned to another location and doesn't stay put, which makes it really frustrating to quickly compare frames.
I'm using 0.3.108 and I don't remember this happening in 0.3.107.