MacRumors published a story that Apple has released the release candidate version of watchOS 7.3 to registered developers.
Apple Seeds Release Candidate Version of watchOS 7.3 to Developers
Apple today seeded the RC version of an upcoming watchOS 7.3 beta to developers for testing purposes, with the beta available a week after the release of the first beta and over a month after the launch of watchOS 7.2 with support for Fitness+, cardio fitness notifications, ECG updates, and more. To install the watchOS 7.3 beta, developers need to download the proper configuration profile from the Apple Developer Center.
Apple Seeds Release Candidate Version of watchOS 7.3 to Developers
