Microsoft has released the Windows 10 20H2 Build 19042.662 to the Beta and Release Preview Channels for Insiders who are on 20H2 or the Windows 10 October 2020 Update.
The update, KB4586853, contains a load of bug fixes but is perhaps, as Neowin notes, most notable because it’s a preview for this month’s optional updates for Windows 10 version 20H2 and 2004 that aren’t in the Insider program.
Unless there’s another out-of-band update like last week’s emergency fix, for authentication issues after installing the patch for a Kerberos flaw, it’s likely to be the final optional update for 2020 as Microsoft pauses optional updates in December due to holidays and lower staffing levels. It will still release Patch Tuesday security updates.
