In the latest versi of the watchOS beta, attempting to open the old watchOS 1 applicatis triggers a message informing users that the old titles will so be incompatible with Apple's wearables platform. It also includes some clear incentives for developers who wish to ctinue marketing their Watch products the App Store.
"The developer of this applicati needs to update it to improve its compatibility," says the warning.
Pressing the "OK" butt allows the app to open and functi normally, suggesting that watchOS 4.3.1 is fully compatible with older Watch software.
The message is similar to a notificati in iOS 10 that informed users of a pending transfer of 32-bit applicatis in favor of 64-bit applicatis. Then, as now, the next …