此次更新针对10.4.6的几项升级，硬件平台包括 Intel-based 和 PowerPC-based 两种机型，主要更新项目：

- preventing AFP deadlocks and dropped connections
- saving Adobe and Quark documents to AFP mounted volumes
- Bluetooth file transfers, pairing and connecting to a Bluetooth mouse, and syncing to mobile phones
- audio playback in QuickTime, iTunes, Final Cut Pro, and Soundtrack applications
- ensuring icons are spaced correctly when viewed on desktop
- determining the space required to burn folders
- iChat audio and video connectivity, creating chat rooms when using AIM
- importing files into Keynote 3
- PDF workflows when using iCal and iPhoto
- reliable use of Automator actions within workflows
- importing and removing fonts in Font Book
- syncing addresses, bookmarks, calendar events and files to .Mac
- compatibility with third party applications and devices
- previous standalone security updates

更多详细信息请参看官方网站的相关文档。