In-place deployment is a method of rolling out a new application version on an existing fleet of servers. The update is done in one deployment action, thereby requiring some degree of downtime. On the other side, there are hardly any infrastructure changes needed for this update. There is also no need to update existing Domain Name System (DNS) records. The deployment process itself is relatively quick. If the deployment fails, redeployment is the only option for restoration. As a simple explanation, you are replacing the existing application version (v1) on the application infrastructure with the new version (v2). In-place updates are low-cost and fast to deploy.