macOS Sierra 10.12.5
On 16 May macOS Sierra 10.12.5 became available for download. This version of Sierra brings improved “stability, compatibility, and security of your Mac”, according to Apple.
The update fixes an issue with stuttering audio when played through USB headphones, it also adds support for Windows 10 Creators Update installations via Boot Camp.
Apple has also made some changes that will ensure that the Mac App Store is compatible with future updates.
There is a security update included with this Sierra update. A security update has also been issued for those running El Capitan and Yosemite. These updates are: Security Update 2017-002 El Capitan, and Security Update 2017-002 Yosemite.
Apple outlines exactly what the security element of the update protects its users from here, along with the credentials of the people who spotted these vulnerabilities.