Since march 2019, Microsoft provides updates for on-premise installations every month. You can find the download links and also the change log here
During the update to Microsoft Dynamics 365 Version 8.2.3.008, I got an error with the message “Action Microsoft.Crm.UpdateWrapper.MspInstallAction failed. Fatal error during installation”.
On Monday (10/30/2017) Microsoft release the new Update Rollup 2 for the On Premise installation of Dynamics 365.