MacRumors published a story that Apple has released the second beta of watchOS 11 to registered developers.
Apple Seeds Second Beta of watchOS 11 to Developers
Apple today seeded the second beta of an upcoming watchOS 11 update to developers for testing purposes, with the beta coming two weeks after the first beta was released following the WWDC 2024 keynote.
To install the watchOS 11 update, developers need to open the Apple Watch app, go to the Software Update section under "General" in Settings, and toggle on the watchOS 11 Developer Beta. An Apple ID linked to a developer account is required.