Note: You currently don't need this update unless you are using the 64-bit version of Logic 9.1.2 or later.
This update is required to be able to use REX files in the 64-bit version of Logic 9.1.2 or later. Please note that the 64-bit version no longer supports Power PC. After downloading, please run the "Install Rex library" installer. This replaces the REX Shared Library with the latest version.