The changes in TeXShop 5.16 are due to Matthias Schmidt.

• There are improvements in the German localization. The "Sharing" and "Mouse Mode" items in the toolbar are translated, and the "Split Window" item has been given a less ambiguous translation. A few translations were tweeked to add consistency and remove typos.

• A bug with the "Magnification" and "Page Number" items in single window toolbar is fixed. Previously, these items opened an empty preview window, a confusing action in single window mode.