Apple has released watchOS 6.2.8 Developer Beta 3 to registered developers twenty days post to the release of watchOS 6.2.8 Developer Beta 2 and a full month after the release of watchOS 6.2.8 Developer Beta 1 and watchOS 6.2.6.
There are no new major changes discovered yet in this new beta and Apple has not mentioned anything yet in their release notes. The build number for watchOS 6.2.8 Beta 1 is 17U5559d. The letter ‘d’ at the end of build number indicates that watchOS 6.2.8 will be released to the public after 3-4 betas. This update may drop for the public on the same day as iOS & iPadOS 13.6
Before you update your Apple Watch, make sure that you have a compatible iPhone with the latest version of iOS. For this update, you’ll require an iPhone 6s or later with a supported version of iOS 13. Also, make sure that your iPhone is connected to WiFi and your Apple Watch has at least 50% charge. Your iPhone and your Apple Watch should be in close proximity to each other. To update your Apple Watch to the latest Beta, Go to the Watch App on your iPhone, then go to My Watch>General>Software Update and update your watch to the latest beta of watchOS. watchOS 6.2.8 will be available for the Apple Watch Series 1, Apple Watch Series 2, Apple Watch Series 3, Apple Watch Series 4 and the Apple Watch Series 5.