Simultaneously 10.2.1 with iOS beta 3 Apple released the third beta of macOS 10.12.3 correcting earlier errors are detected the software platform for the Mac.
In the third Assembly macOS Sierra 10.12.3 was not detected any significant changes, Apple is not talking about significant innovations in the OS. The developers point to improve the stability, compatibility, and correction of defects in work computers
The previous major update macOS Sierra 10.12 brought several significant and many minor changes. In particular, on the Mac first became available voice assistant Siri.
macOS Sierra 10.12.2 saw the light after six test releases for developers, and unlike the previous update did not propose any changes in the interface. The update only added new set of Emoji included in Unicode standard 9, including Emoji for selfies, shrug, clown, Fox face, owl, and others.
Great emphasis was placed on improving the mechanisms for protecting and improving the performance, stability, compatibility, and security, as well as on fixing bugs in the previous release.
Install macOS 10.12.3 3 beta through the updates section of the app store, the Mac App Store.