Nothing worth noting about the Gradient plugin: the before and after jpg file only shows that before you clicked on the boxes of Inner/Outer color and now you click on the colored rectangle instead to bring up the color picker. Here is what the notes say:
BUG fix: A mod has been made to the colorpicker that affects the Gradient to avoid strange hesitancy behavior. Fixed outer color setup for yuv in the gradient plugin.
BUG fix: The Gradient plugin has been reworked and fixed so that the OpenGL version is now correct and the same as the X11 software version.
BEHAVIOR change: It also has had the Color Picker updated to work the same as the other newer color pickers with an OK and Cancel button.
I have to get back to you on deinterlacing.
I believe that there are no other plugin changes besides Tracer and Sketcher as I looked through my notes between March and now and nothing of significance showed up.