Today's update includes a draft version of the bonus campaign, available to players who have completed the main campaign. The specific list of puzzles and their order is not final and is likely to change over the next week or so. Let us know what you think of the bonus campaign through the normal channels!
This update also includes a change in how we draw the screen when the "full" pixel scaling method is selected. It used to remain sharp but result in differently-sized pixels, while it now is less sharp but much more consistent looking. If your monitor resolution is a multiple of 960x540 (i.e. 1080p or 4K) this won't matter to you.