Mac OS X 10.4.6 Update Released [Updated]

Thanks to reader Matt for pointing out that Apple has released the Mac OS X 10.4.6 update. From the brief description in Software update:

The 10.4.6 Update is recommended for all users and includes general operating system fixes, as well as specific fixes for the following applications and technologies:

- login and authentication in a variety of network environments
- file access and byte range locking with AFP file sharing
- network access when using proxy server automatic configuration files
- connecting to Cisco VPN servers using IP/Sec
- using Bluetooth wireless devices
- searching iWork '06 and Microsoft Office documents with Spotlight
- saving Word documents automatically when using a network home directory
- creating Automator workflows for iPhoto 6
- synchronizing contacts and calendars to .Mac and mobile phones
- mounting and unmounting iDisk volumes
- compatibility with third party applications and devices
- previous standalone security updates

[UPDATE: we noticed over on Daring Fireball's Linked List that, apparently, two restarts on PPC machines is completely normal.]