Microsoft Windows Vista Service Pack 1

Microsoft is officially rolling out Windows Vista Service Pack 1 to users today. The retail version should be released later this week (by retail, I mean copies of Microsoft Windows Vista that contain Service Pack 1) You can install it through Windows Update or through the links below. Automatic updates will start around a month from now.

Some changes/improvements:
- Performance increases (file copy operations, hibernation, file share browsing, etc.)
- Windows Disk defragmenter - can now choose individual drivers to defragment once again).
- Support for exFAT file system
- Support for 802.11n wireless networking
- Added IPv6 over VPN connections/tunneling
- Extensible Firmware Interface on 64-bit systems can now be used for booting.
- Desktop search changes (including changing the default desktop search program).
- New tools/APIs to help antivirus software developers.
- DirectX 10.1

Some links to get you started:
- Windows Vista Developer Center

Stand-alone Installer
- Service Pack 1 Five Language Standalone (KB936330) (435MB)
- Service Pack 1 Five Language Standalone for x64-based Systems (KB936330) (727MB)