Mac OSX has its 2nd major update since its release in March of this year, now at 10.1.2 (I like to call it 10.2) this update contains a number of fixes, some of which are listed below.
The 10.1.2 update delivers improvements and new functionality, including:
Updated and new USB and FireWire device support, including FireWire-based digital cameras
PC Card storage devices, including media readers
IrDA modem support for FireWire-based PowerBook models
Mail support for CRAM-MD5 authentication
Audio, display, speech, networking and printing improvements
AirPort v2.0
Apache web server v1.3.22
AppleScript v1.8 (required for AppleScript Studio)