Apple yesterday released a pair of updates, currently available through the Apple Downloads page:
Digital Camera RAW Compatibility Update 2.5
This update extends RAW file compatibility for Aperture 2, iPhoto '08, and iPhoto '09 for the following cameras:
Nikon D3X
Epson R-D1x
It also addresses issues related to specific cameras and overall stability.
The update requires OS X 10.4.11 or 10.5.3 or later and weighs in at 3.81 MB.
This update improves the ability of MacBook batteries to maintain a charge when the system is shut down and not used for an extended period of time.
Apple's support document about this update provides information on how to determine which machines require the update and how to apply it, as only those machines with battery device name "ASMB016" or "ASMB013" in the serial number, a Pack Lot Code of 0002, and a battery firmware version of 0110 as displayed in the "Battery" section of System Profiler require the update. The update requires OS X 10.5.6 and weighs in at 210 KB.