OS X 10.11.4 beta 2, tvOS 9.2 beta 2 and watchOS 2.2 beta 2 were launched this evening by the Apple company together with iOS beta 9.3 2, all three beta versions of the operating systems being offered for now only to application developers for the respective platforms.
For now there is no information about what the company offers new for OS X 10.11.4 beta 2, tvOS 9.2 beta 2 and watchOS 2.2 beta 2 because change lists for the two versions of the operating systems have not been published, so it remains to be seen what the developers will discover.
OS X 10.11.4 beta 2, tvOS 9.2 beta 2 and watchOS 2.2 beta 2 they can be installed by developers directly through the Software Update system created by the Apple company, or by downloading from the portal dedicated to them on the Apple website.
