MacRumors published a story that Apple has released the third beta of watchOS 9.4 to registered developers.
Apple Seeds Third Beta of watchOS 9.4 to Developers
Apple today seeded the third beta of an upcoming watchOS 9.4 update to developers for testing purposes, with the software update coming one week after launch of the second beta.
Apple Seeds Third Beta of watchOS 9.4 to Developers
To install the watchOS 9.4 update, developers will need to download the configuration profile from the Apple Developer Center.