Not every update needs a big new mode.
That is Count Bricks 4.0.6. It was updated the foundations behind the game, revisited parts of the UX that felt slower or less clear than they should, and fixed the small bugs that can quietly interrupt a good puzzle.
Most of this work is intentionally invisible. You should notice fewer rough edges, a smoother path into the game, and a more reliable experience from one puzzle to the next.
Version 4.0.6 is that kind of update.