Apple has released a second gold master of macOS Sierra to developers, even though the finished version of the operating system is due next week.
A golden master is a final version of software ready for release to manufacturing. The first non-beta version of macOS Sierra is due to arrive on Tuesday, Sept 20.
UPDATE: AWT reader Emma Rios contacted us to let us about one of the apparent fixes in macOS Sierra. Emma had loaded the original Golden Master and ran into a Wi-Fi issue, then needed to run a fix that was featured on Cydiageeks.com. The new Golden Master fixes the problem! Thanks for the info, Emma.