On Tuesday, Apple seeded the fifth and possibly final beta of macOS Ventura 13.3 for developers to test.
By visiting the Apple Development Center or updating Macs that are currently running beta software, developers who have signed up for the beta program can download the release candidate build. The Apple Beta Software Program provides access to public beta versions, which quickly follow developer versions.
The fifth macOS Ventura 13.3 beta build number is 22E252, up from 22E5246b.
AppleInsider and Apple strongly suggest users don't install beta operating systems or other beta software on "mission-critical" or primary devices, as there is the small chance of issues that could result in the loss of data. Testers should instead use secondary or non-essential hardware and ensure they have sufficient backups of their critical data at all times.