Mac OS X 10.4.4 is now available for download via Software Update, following Apple CEO Steve Jobsi announcement of the update earlier today.
The highlighted fixes, as noted in Software Update, include:SMB/CIFS and NFS network file servicesBluetooth wireless accessCore Graphics, Core Audio, Core Image, RAW camera support, including updated ATI and NVIDIA graphics driversSpotlight indexing and searchingAppleScript, iChat, DVD Player, and Safari applicationsDashboard widgets: Calendar and StocksSoftware Update and Sync Servicescompatibility with USB and FireWire devices and third party applicationsprevious standalone security updates
Additional information on the Mac OS X 10.4.4 update is available here, while the 55MB download can be found directly on this page. (The updater via Software Update weighs in at a lighter download, depending on your system configuration.)
A Combo Updater for Mac OS X 10.4.0, 10.4.1, and 10.4.2 users is also available as a 120MB download.