Apple publishes RC for iOS/iPadOS 16.6, macOS Ventura 13.5, watchOS 9.6 and tvOS 16.6.
Also, RC for iOS/iPadOS 15.7.8 is published too. No updates for Xcode are planned with this release.
Beta download: Operating Systems
Release notes are not updated for RC at the time of writing.
Developer:Try RC for compatibility issues.
QA engineer:Try RC for regressions.
PM/DM:Business as usual.