iOS 16.4 brings new toggles in Software Update that let you install developer or public betas of iOS without downloading configuration profiles.
iPadOS 16.4
iOS 16.4 adds 5G Standalone support for up to 3 Gbps iPhone speeds
Your iPhone could soon support T-Mobile's 5G Standalone network with speeds up to 3Gbps thanks to iOS 16.4, which also brings 5G support to more regions.