The new version of PowerCADD is not only OS X native, it is also designed to run best under OS X, and includes a number of advanced features which are available only with OS X. PowerCADD 7 requires a minimum of OS X 10.3. Click here for PowerCADD™ 7.0 Features When placing your order for upgrades, you must enter your current serial number in the "Add Comments About Your Order". Without the serial number, your order cannot be processed.