Apple has updated Mac OS X to version 10.1.4. It's available for download using the OS X Software Update utility.
Similar to the OS X Server update released yesterday, this update offers improved networking, security, and additional external-device recording-support. Support has been introduced for Fast 10 SCSI drives, including the Pioneer 201 DVD-R mechanism.
The 2.2MB update also enhances PPP-based dial-up connections, file-sharing, and support for 3Com routers.