Apple on Tuesday seeded the second beta of macOS Sierra 10.12.3 to developers, one week after seeding the first 10.12.3 beta and a week after releasing macOS Sierra 10.12.2, the second update to the macOS Sierra operating system.
According to Apple’s release notes, the 10.12.3 update “improves the stability, compatibility, and security of your Mac.” No specific changes, bug fixes, or feature additions were discovered in the first beta, but we’ll update this post should any new features be found in the second beta.
Oftentimes, with bug fixes, it’s difficult to tell just what’s included until Apple supplies detailed release notes with a release. The previous update, macOS 10.12.2, introduced several important bug fixes to resolve battery life issues, fix graphics problems, and more.
The beta software is available through Apple’s dedicated developers page, and can be downloaded from there. It is also available as an over-the-air (OTA) update on registered devices running the first beta.
If any forward-facing changes are discovered, we’ll update this post accordingly.