Apple has today released tvOS 13.4.8 Beta 4 to registered developers ten days after the release of tvOS 13.4.8 Beta 3 and over a month after the public release of tvOS 13.4.6.
The build number for this update is 17M61. The build number signifies that this is a Gold Master copy as it does not have a letter at the end of the build number which identified if the version released was the final version or a beta testing version. The final public versions of tvOS 13.4.8, watchOS 6.2.8, iOS 13.6 and iPadOS 13.6 are expected to be released on Monday, July 14th. tvOS 13.4.8 will be supported on the Apple TV HD and the Apple TV 4K. According to Apple’s release notes, there are no new changes in tvOS 13.4.8 Beta 4.