In addition to Windows 10 Build 20226 which is in the Dev channel, the Microsoft was released Windows 10 build 19042.546 on Beta and Release Preview channels.
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 a problem that prevents one device to enter 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 the successor to May 2020 Update, or version 2004 that was released in May 2020. Windows 20 version 2H10 will be a minor a smaller update that mainly focuses on selected performance improvements, and quality.