Starting ROTS, they’ve added a frame to the end of the “Do what must be done, Lord Vader” shot (~1:18:30), then pulled out a frame from the “other separatist leaders” shot (~1:18:53).

~0:00:41 - In 2019, A pixel or two has been cropped off in the vertical dimension.

~0:46:00 - In 2019, the glow (power window) applied to Anakin in 2005 was removed.

~1:18:30 - In 2019, Additional frame added to end of shot of Anakin talking to Sidious/Palpatine.

~1:18:53 - In 2019, Frame removed at beginning of shot of Anakin looking at sitting Sidious/Palpatine.