Apple Releases Firmware Updates for 'Late 2008' Portables
Apple today released a number of firmware updates for the "Late 2008" MacBook, MacBook Pro, and MacBook Air. Each model requires two separate firmware updates.
EFI Firmware Updates: The Extensible Firmware Interface (EFI) specifies the interface between a computer's firmware and the operating system. These updates address several issues related to system stability. Further information and installation instructions can be found on Apple's support page.
SMC Firmware Updates: The System Management Controller (SMC) controls various power-related functions. According to Apple, these updates address the "sensing and accuracy of the MagSafe Power Adapter indicator light, and the battery charge indicator lights." General information and installation instructions for SMC updates can be found on Apple's support page.