Apple Releases tvOS 10.0.1 Beta and watchOS 3.1 Beta to Developers [Download] LIKETWEETMAIL Posted September 21, 2016 at 6:15pm by iClarified · 7914 views Apple has released tvOS 10.0.1 beta and watchOS 3.1 beta to developers for testing. The build numbers are 14U54 and 14S452 respectively.Both betas bring bug fixes and improvements.Download