Apple released iTunes 7.3 updated in the Mac OS X Software Update tonight, which offers support for "iTunes Plus", Apple's new DRM-free $1.29 offerings announced in April.

Despite the software update, the Apple iTunes Store itself does not show any DRM-Free music currently available for purchase. The DRM-Free launch will likely occur later this morning (Wed, May 30th).

From the iTunes Help, it appears you will be able to upgrade your existing songs to the iTunes Plus (DRM Free) version:

The iTunes Store also offers songs without DRM protection, from participating record labels. These DRM-free songs, called "iTunes Plus," have no usage restrictions and feature higher-quality encoding.

The first time you buy an iTunes Plus song, you specify whether to make all future purchases iTunes Plus versions (when available). You can change this setting by accessing your account information on the iTunes Store.

If you already have iTunes Store purchases that are now available as iTunes Plus downloads, you may upgrade your existing purchases. To do so, visit the iTunes Store and follow the onscreen instructions.

iTunes is an audio player for playing and organizing digital music files, and purchasing digital music files in the FairPlay digital rights management format. The iTunes Music Store is the component of iTunes through which users can purchase digital music files from within iTunes.

Users are able to organize their music into playlists, edit file information, record compact discs, copy files to a digital audio player, purchase music on the Internet through its built-in music store, run a visualizer to display graphical effects in time to the music as well as encode music into a number of different audio formats.

iTunes includes the Quicktime Player installer.

About iTunes 7.3
What’s New in this Version
- Activate your iPhone service
- Sync iPhone with your music, movies, TV shows, and more
- Wirelessly share digital photos from any computer in your home with Apple TV

iTunes，蘋果公司最熱門音樂軟件的最新版本，具有了一個極吸引人的新功能：令人難以置信的iTunes音樂商店，成千上萬首歌曲讓您預聽并且擁有，只要您點擊一下就行了。無論走到哪里，都帶著音樂，帶著您的全心iPod。它可以支持新的AAC音頻格式（具有更好的音質，而文件大小卻更小了），同時也可以讓您同本地以太網絡或 AirPort 無線網絡上的蘋果電腦共享您的音樂。如果您的蘋果電腦配備SuperDrive 光驅，您還可以將您的整個音樂庫刻錄成DVD光盤以便保存。

蘋果剛剛推出最新版音樂播放、下載軟件iTunes，版本號7.3。

新版iTunes最大更新在于對蘋果新一代手機——iPhone提供支持。

系統需求：
Windows版—— 500MHz以上處理器，256MB內存，Windows 2K SP4、Windows XP SP2或Windows Vista
視頻播放需求——2.0GHz處理器以上，512MB內存，32MB顯存

Download: iTunes 7.3.0.54 多國語言版 (36.1 MB)
Download: iTunes 7.3.0.54