Apple has released its third developer beta of macOS Sierra 10.12.1. It can be downloaded from the Apple Developer Center (https://idmsa.apple.com).
Third developer beta of macOS Sierra 10.12.1 released
![Third developer beta of macOS Sierra 10.12.1 released](https://www.mactech.com/wp-content/uploads/2016/10/macOS-Sierra-logo_3.jpg)
Apple has released its third developer beta of macOS Sierra 10.12.1. It can be downloaded from the Apple Developer Center (https://idmsa.apple.com).