Apple today released iTunes 4.6. iTunes 4.6 includes support for playing your music wirelessly using AirPort Express with AirTunes. It also includes “a number of other minor enhancements,” according to Apple’s notes.
iTunes 4.6 requires Mac OS X version 10.1.5 or later (Mac OS X version 10.3.4 is recommended). Music sharing and DVD burning require Mac OS X version 10.2.4 or later, and AAC encoding requires QuickTime 6.2 or later. AirPort Express with AirTunes requires Mac OS X version 10.3 or later. To use music purchased from the iTunes Music Store in iLife ’04, you need to have QuickTime 6.5.1 and the latest iLife software updates installed. 256 MB RAM is recommended.
Make sure you have the latest update of Mac OS X, QuickTime, and iLife. Get the latest update by choosing Apple menu > System Preferences, then clicking Software Update, and then Update Now or Check Now. After you install an update, it’s a good idea to click Update Now or Check Now again to make sure you’ve gotten all the latest versions. To get the latest upgrade to Mac OS X, visit [url=http://www.apple.com/macosx]http://www.apple.com/macosx[/url]
To create audio or MP3 CDs with iTunes, you need an internal Apple CD-RW drive. To back up your music to a DVD, you need an internal Apple SuperDrive. Some third-party CD-RW and DVD-RW drives may also work.
If you plan to listen to music previews or buy music from the iTunes Music Store, a DSL, cable modem, or local area network (LAN) Internet connection is recommended.
More info about iTunes 4.6 here.