Apple has released new updating software for all generations of iPod and iPod mini, including the new Click Wheel iPod.
iPod Updater 2004-07-15 includes the latest available software for each model of iPod or iPod mini: iPod Software 3.0 for the Click Wheel iPod; iPod Software 1.1 for iPod mini; iPod Software 2.2 for third-generation iPods and iPod Software 1.4 for Touch Wheel and Scroll Wheel devices.
Some of these updates have been made available in the past. In summary, improvements by iPod-type bundled in this release include:
New features for Click Wheel iPods include: The capacity to shuffle songs with one click; support for creating multiple On-The-Go playlists; the facility to delete songs from On-The-Go playlists; the opportunity to select reading and playback speeds for audiobooks; users can now hear the clicker user interface sound through headphones; users can charge their iPods using USB 2.0 and enjoy "improved playback performance".
iPods with a Dock connector and the iPod mini gain compatibility with iTunes 4.5 or later; better playback performance and support for the Apple Lossless Encoder, to enable compressed music encoding at high quality.
iPods without a Dock connector get iTunes 4.5 compatibility and better playback performance.