Apple seeded macOS High Sierra 10.13.2 Developer Beta 4 on Thursday, just three days after the release of Developer Beta 3. This marks an acceleration of the release cycle, which in the past has meant Apple is nearing release.
No new features have as yet surfaced in the 10.13.2 release cycle, suggesting it’s a bug fix and performance-centric update.
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.