iPod Update 2004-04-28 supports all models of iPod and iPod mini introduced before April 28, 2004. This update is required to take advantage of new features in iTunes 4.5 and the iTunes Music Store.
Changes for iPod without a Dock connector
Changes for iPod with a Dock connector and iPod mini
What’s new in this version:
This update is required to take advantage of new features in iTunes 4.5 and the iTunes Music Store.
Mac OS X v10.1.5 or later. Some features require Mac OS X v10.2.8 or later
Macintosh computer with built-in FireWire
Windows 2000 (Service Pack 4) or Windows XP
A PC with built-in FireWire or USB 2.0, or a FireWire or USB 2.0 card