Less than a week after the first test version, Apple is already pulling its chopsticks and launching the second beta versions of iOS 11.2.5 (build 15D5046b) and the watchOS 4.2.2 (15S5534a).
Updates, of course, also bring a number of bugfixes and general improvements.
For now, the tvOS 11.2.5 whose first beta was launched with the other two systems mentioned here has not yet had its second test version released; as soon as that happens, we will update the post. We will also notify you when the systems arrive at the Apple Beta Software Program, which should happen very soon. Stay tuned!
Update 12/19/2017 s 19:13
As expected, the second beta version of tvOS 11.2.5 (build 15K5539b) has also been released for developers.
Update II, by Rafael Fischmann 12/20/2017 s 16:20
The second beta versions of iOS 11.2.5 and tvOS 11.2.5 are now also available to members of Apple Beta Software Program.