Apple released iTunes 8.2 via Software Update on Mac OS X and Windows. The update adds support for iPhone OS 3.0, which is expected to be featured at Apple’s Worldwide Developers Conference next week.

iTunes 8.2 now supports iPhone or iPod touch with the iPhone 3.0 Software Update. iTunes 8.2 also includes many accessibility improvements and bug fixes.

Registered iPhone developers have been using pre-release versions of iTunes 8.2 since late April in order to test iPhone OS 3.0 betas. If you did previously install an iTunes 8.2 pre-release version, this new update won’t appear in Software Update.

In Addition, for those who care, Quicktime was also updated to 7.6.2. This update fixes security issues and improves performance.

QuickTime 7.6.2 includes changes that increase reliability, improve compatibility and enhance security. This release is recommended for all QuickTime 7 users.