Just minutes ago, Apple released iOS 5 beta 4 for iPhone, iPad and iPod touch. Naturally with a new iOS 5 beta release, Apple is bound to release a new beta version of iTunes as well. iTunes 10.5 beta 4 is now available for download on both Windows and Mac.
Please do keep in mind that pre-release beta software is meant for developers only. Non-developers may get their hands on beta firmware by downloading it from the various file sharing websites its uploaded to, but if don't have an idea of what issues you can face with beta software please refrain from upgrading to it.
iTunes 10.5 beta 4 download is now available to registered developers enrolled in the iPhone Developer Program. Also, please keep in mind that in order to upgrade your device to iOS 5 beta 4, you will need the latest iTunes 10.5 beta 4 on your Windows and Mac. The previous beta of iTunes will not support iOS 5 beta 4 and you will not be able to upgrade your device using it.
So to get started with iOS 5 beta 4 on your iPhone, iPad and iPod touch, head over to the developers portal right now and download iTunes 10.5 beta 4 for both Windows and Mac.
If you're a non-developer please wait for a while as we shall soon be adding links from where you can direct download iTunes 10.5 beta 4 without having to be a registered developer.
UPDATE: Download links of iTunes 10.5 beta 4 for Windows and Mac added.