去年 12 月份，苹果开始向开发者发布 Mac OS X 10.4.9，近三个月后的今天，终于正式向个人用户提供下载了，也真巧，正好是微软发布 Windows Server 2003 Service Pack 2。

官方提供的主要更新列表：

- RAW camera support
- Handling of large or malformed images that could cause crashes
- Image capture performance
- Mouse scrolling and keyboard shortcuts
- Font handling
- Playback quality, and bookmarks in DVD Player
- USB video conferencing cameras for use with iChat
- Bluetooth devices
- Browsing AFP servers
- Apple USB Modem
- Windows-created digital certificates
- Open and Print dialogs in applications that use Rosetta on Intel-based Macs
- Time zone and daylight saving for 2006 and 2007
- Security updates

Mac OS X 10.4.9 Update (PPC) SHA1 Digest:
MacOSXUpd10.4.9PPC.dmg=380b0db5c8978a025cfc9b19e46845a51608d5be

For explanation of what a SHA1 digest is, please visit this website;
For detailed information on this Update, please visit this website;
For detailed information on Security Updates, please visit this website;

Download: http://www.apple.com/support/downloads/