Our first month with an update for our newest on-premises product SharePoint Server 2019. How we provide the Public Updates is the same as you may experienced with SharePoint Server 2016. We expect to see a language independent version and also a language dependent one. This (first) month we just have a language independent package. I call it PU now, but the packages are still cumulative updates.
KB 4461513 Language Independent package
Download it from: https://www.microsoft.com/en-us/download/details.aspx?id=57551
After installing the fixes you need to run the SharePoint 2019 Products Configuration Wizard on each machine in the farm. If you prefer to run the command line version psconfig.exe ensure to have a look here for the correct options.
SharePoint 2019 PU Build Number: for the language independent 16.0.10338.12107
New/Old features with SharePoint 2019