Apple Wireless Keyboard the initial release. The new model now uses only two AA batteries instead of three originally. Additionally, Mac OS X 10.5.8 is now the minimum OS over the original Mac OS X 10.4.10. This model of keyboard became standard with new generation of iMacs introduced on the same day. On July 20, 2011, following the release of Mac OS X 10.7/OS X Lion, Apple updated the keyboard slightly, updating the label on the Exposé key to Mission Control and changing the Dashboard key to a Launchpad key. Keyboard layouts with a rectangular Enter key are available in American English and
Dvorak Simplified Keyboard on the leftmost three keys of the upper row, which correspond to punctuation symbols on the English Dvorak layout. This retains the original English DVORAK design goal of keeping all vowels by the left hand, including Y which is a vowel in Swedish. The displaced punctuation symbols (period and comma) end up at the edges of the keyboard, but every other symbol is in the same place as in the standard Swedish QWERTY layout, facilitating easier re-learning. The Alt-Gr key is required to access some of the punctation symbols. This major design goal also makes it possible to "convert" a