Apple has updated the details of its Mac OS X 10.2 Up-To-Date program: Macs purchased after July 17, as well as retail copies of Mac OS X 10.1 purchased after July 17, are eligible for the special US$19.95 upgrade price. Additionally, all Xserve owners, regardless of purchase date, can purchase Mac OS X Server 10.2 for $19.95. Power Mac G4 Servers purchased after July 17 are also eligible for the discounted upgrade. Updated (17:50): MacMinute has learned that refurbished systems purchased after July 17 can take advantage of the Mac OS X Up-To-Date program as well.