The new firmware! Put!
After the final version iOS 12.1.3 Apple released the release builds of macOS Mojave 10.14.3, watchOS 5.1.3 and tvOS 12.1.2. All the updates are aimed at fixing bugs and do not contain any major innovations. However, firmware are recommended for installation to all users of supported devices. Installing macOS Mojave 10.14.3, watchOS and 12.1.2 5.1.3 tvOS available via standard update mechanisms.
macOS Mojave 10.14.3 includes performance improvements and bug fixes discovered since the launch of macOS 10.14.2. During the beta period we have not found any major changes in the macOS Mojave 10.14.3. According to the note from Apple, the update improves security, stability and compatibility of Macs and it is recommended to install to all users.
watchOS 5.1.3 is a minor update that focuses on improving performance and fixing bugs discovered since the release of watchOS 5.1.2. During the beta period watchOS 5.1.3 we do not find in the firmware any visible change.
As the previous technical update, tvOS 12, firmware tvOS 12.1.2 focuses on bug fixes and performance improvements under the hood. Apple has not published descriptions of the updates tvOS 12.1.2 in connection with the list of firmware changes is unknown.