macOS Sierra build 16F5049f

Build of macOS Sierra
16F5049f about.png
Works in

macOS Sierra build 16F5049f is an internal development build of macOS Sierra 10.12.5. The build was originally discovered on a refurbished MacBook Pro purchased by a Reddit user on 10 October 2019.[1] The contents of the hard disk containing the build itself was later leaked onto a Discord guild on 30 October 2023, and subsequently uploaded onto the Internet Archive the same day.[2] The build notably contains development tools used for testing hardware functionality on newly-manufactured and refurbished Mac computers (including extended validation (EV) units).

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