Several new releases of Mac OS X

Apple rapidly developed several new releases of Mac OS X. Siracusa's review of version 10.3, Panther, noted: "It's strange to have gone from years of uncertainty and vaporware to a steady annual supply of major new operating system releases." Version 10.4, Tiger, reportedly shocked executives at Microsoft by offering a number of features, such as fast file searching and improved graphics processing, that Microsoft had spent several years struggling to add to Windows with acceptable performance.