Apple today seeded the first betas of upcoming iOS 27.3 and iPadOS 27.3 updates to developers, with the betas coming a week after iOS 27.2 and iPadOS 27.2 were released.

Registered developers can download the betas by going to Settings > General > Software Update and opting in to the developer beta.
We're still waiting on iOS 27 features Apple previously announced, such as the redesigned Health app that adds Apple Intelligence insights and guidance and reachability on the iPhone Duo. Apple also hasn't reintroduced the feature that lets Safari fix weak or compromised passwords using Apple Intelligence.
Apple is planning to expand Apple Intelligence to China with the iOS 27.3 update, and it could also bring RCS support to Australian carrier Telstra.