As Apple works towards reaching iTunes 10.5 (that’s the version you’ll need for iOS 5) it’s not leaving behind current iTunes 10.4 users, having just released a new update.
iTunes 10.4.1 provides a number of improvements, including fixing a problem where the media keys on some third-party keyboards work inconsistently with iTunes, addressing issues with adding artwork to songs and videos and resolving an issue which may cause iTunes to become unresponsive when purchasing an HD movie.
Other issues being fixed in the new update include a problem where iTunes may take longer than expected to open after waking your Mac from sleep and issues with VoiceOver support.
iTunes 10.4 is currently the latest version of iTunes, released to work with OS X Lion and in particular its full screen option.
The download is available via software update and weighs in at 12.4MB.