Apple seeded macOS High Sierra 10.13.2 Developer Beta 3 on Monday. No new features have as yet surfaced in the 10.13.2 release cycle, suggesting it’s a bug fix and performance-centric update.
Apple also released iOS 11.2 DB3, tvOS 11.2 DB3, and watchOS 4.2 DB3.
Macs that have been provisioned for developer betas will find the update in Software Update on the Mac App Store. Developers can provision Macs in the Apple Developer Connection.