Except of the Windows 10 Build 20226 available in Dev channel, Microsoft was released Windows 10 build 19042.546 in the Beta channels and Release Preview
The update is released as a cumulative update and does not include new features. Microsoft seems to be completing 20H2 version of Windows 10 before it reaches the fixed channel and is available to everyone.
The patch comes with two fixes. The change log states the following
We fixed an issue that prevented a device from entering the Modern standby.
Fixed a reliability issue in Microsoft Edge that occurs when you open multiple windows or tabs.
The update is available to Insiders who have opted in to receive it updates from the Beta and Release Preview channels. The fixes are also expected to be released to users of version 20H1 in the form of an optional update.
Version 20:2 am of Windows 10 is its successor May 2020 Update, or version 2004 released in May 2020. Windows 20 version 2H10 will be a minor, smaller update that focuses mainly on selected performance, and quality improvements.