Windows 10 October 2020 (20H2/Version 2009) is likely to be released today. Today is the monthly Patch Tuesday event day, and Microsoft typically releases feature updates on that event day. Microsoft has now identified version number Building 19042 and has invited Insider project members to test it for several months.
After extensive testing of the Insider project, Microsoft has begun to make server adjustments to make it possible to prepare Windows 10 October 2020 feature updates for all eligible users. Earlier today, Microsoft made background adjustments to Media Creation Tool, indicating that it will release the feature update in the coming hours. Similarly, Microsoft has begun uploading media images of The October 2020 feature update to its servers.