When can a developer use the advanced deploy mode feature in Looker?

The advanced deploy mode feature in Looker is particularly useful for developers who want to ensure that they can track the exact commit version of their LookML code that is currently deployed. This feature becomes essential during the deployment process as it allows for greater control and transparency regarding which specific version of the LookML is being used in production or test environments. By enabling developers to specify the commit they wish to deploy, they can reduce the risk of unintentional changes affecting the functionality or performance of the Looker instance.

The other options do not accurately capture the appropriate context for using advanced deploy mode. It is not limited to production environments exclusively—developers can deploy in various scenarios. Similarly, while initial setup may involve various configurations and deployments, the tracking of commits is specifically relevant during updates or when managing multiple versions, making that context unsuitable for initial configuration stages. Additionally, using advanced deploy mode "at any time" wouldn’t accurately reflect its intended use; it is strategically utilized when tracking exact revisions is necessary for the development and deployment cycle.