MacRumors published a story that Apple has released the second beta of watchOS 8 to registered developers.

Apple Seeds Second Beta of watchOS 8 to Developers

Apple today seeded the second beta of the upcoming watchOS 8 update to developers for testing purposes, with the second beta coming a little over two weeks after Apple first revealed ‌watchOS 8‌ at the Worldwide Developers Conference. To install ‌‌watchOS 8‌‌, developers will need to download the configuration profile from the Apple Developer Center. Once installed, ‌‌watchOS 8‌‌ can be downloaded through the dedicated Apple Watch app on the iPhone by going to General > Software update.

Apple Seeds Second Beta of watchOS 8 to Developers