The SharePoint 2019 November 2018 Updates have been released:
SharePoint Server 2019 (sts-x-none): https://support.microsoft.com/help/4461513
Office Updates: https://support.microsoft.com/help/4469617
Trevor Seward is a Microsoft Office Apps and Services MVP who specializes in SharePoint Server administration, hybrid scenarios, and SharePoint Online. He has been working with SharePoint for 16 years from SharePoint 2003 on up, managing environments with terabytes of content for 150,000+ user organizations. Trevor is an author of Deploying SharePoint 2016 and Deploying SharePoint 2019. You can find him on Twitter and in /r/sharepoint.