Historically, Apple used the term "Golden Master" (GM) for the final build sent to production. With Big Sur, Apple officially adopted the terminology, a standard used across modern software development to denote a version that is essentially final unless significant bugs are found. RC1 for Big Sur 11.0.1 (Build 20B28) was the first time many users experienced the nearly-polished version of the "iOS-ified" desktop experience. Key Features and Redesign Highlights
Based on your request, "Big Sur RC1" refers to the (build 20A2411 ) of macOS Big Sur 11.0.1 , released by Apple in November 2020. big sur rc1
Big Sur was a landmark update for several reasons: Historically, Apple used the term "Golden Master" (GM)
RC1 arrived with fixes for: