Golden Master

A golden master build (GM) is typically the final build of a piece of software in the beta stages for developers. Typically, for iOS, it is the final build before a major release, however, there have been a few exceptions.

Builds declared Golden Master

 * 2.0 -  (  was release)
 * 3.0 -
 * 4.0 -  (release had no Game Center, but contained same build number)
 * 4.1 -
 * 4.2 - ,
 * 4.2.1 -  (iPhone 3GS received   for release)
 * 4.3 -
 * 5.0 -
 * 6.0 -
 * 6.1 -,  ,  , and   (called beta 5 by Apple, but was technically a golden master)
 * 7.0 -
 * 7.1 -,   and
 * 8.0 -  and