Apple released today a week after its last updates the fifth test versions of iOS 11.4.1 (compilation 15G5077a) and macOS High Sierra 10.13.6 (17G62a). So, the tvOS 11.4.1 and that of watchOS 4.3.2 (which is still in the third beta).
As we have already said, it is natural for Apple to continue working on subversions of the current systems, since the new ones (iOS 12, macOS Mojave 10.14, watchOS 5 and tvOS 12) will still need a few months of testing before they are ready for the general public.
With the exception of a possible arrival of the Restricted USB mode in iOS 11.4.1, there is no news of big news in these small updates, which should focus only on bug fixes and small performance improvements. If something interesting comes up in any of the updates, of course, we will be looking forward to notifying you. ?