A few hours after the update of all of their other operating systems, Apple has now seeded a new build of macOS 10.12.4. In this version we find Night Shift, which will change the display color at night. We also see some minor changes for Siri, improvements for PDFKit APIs, and iCloud Analytics Options.
To get this update developers can go to the Mac App Store and find it under updates. If you aren’t on this beta yet you can go to the Apple developer center and download the installer from there.