Download of MacBook Air (Mid 2012) Software Update 1.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This software for Mac OS X was originally developed by Apple Inc. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The program lies within System Tools, more precisely General.
From the developer:
MacBook Air (Mid 2012) Software Update is recommended for MacBook Air (mid 2012) models.
The update includes fixes that improve graphics stability, flash performance, and external display support.
System Optimization
Distribution