The whole sum sits on one line now — the first operand, the operator and what you are typing — set in a condensed face that takes the largest size it fits in, so a short answer is drawn large and thirteen digits still fit.
The result is drawn much larger. The whole sum sits on one line now — the first operand, the operator and what you are typing — instead of splitting one thought across two sizes, and it is set in a condensed face that takes the largest size that fits: a short answer fills the display, and thirteen digits still fit.
The menu icon is drawn black, so it shows on every launcher row and not only on the highlighted one.
The watch menu icon is line art now — a filled silhouette turned into a featureless slab once the launcher tinted it.
First release. Proper maths signs, key preview above the fingertip, haptic feedback.