No specific info about version 1.1. Please visit the main page of PENTAX K-5 Firmware on Mac Informer.
The MacBook EFI Update will update the EFI firmware on your notebook computer.
This app updates the firmware on the Radeon HD 2600 PRO card to address issues.
This free-to-use app will update the EFI firmware on your Mac mini computer.
Freya allows you to update, download and edit your video card firmware.
The app allows you to update firmware for the SteelSeries Stratus MFi.