Updates are provided in the action center on LCS's project main page. The default settings that can be applied to a multi-tier sandbox and production environment for Microsoft D365FO environment is provided in the Project settings, as shown in the following screenshot:

Here, you can suggest the preferred update cadence for the production environment and, if needed, can pause the updates.

Please refer to Chapter 13, One Version Service Updates, for more details on managing continuous updates coming from Microsoft.