While software development is fun, the essential part of a software life cycle is production. This refers to serving actual client requests, doing business processes, and improving the industry in general by offering an amazing business service. For our application, this vital step is called release. Now, after being mainly under the guardianship of developers and testers, our software system is ready to meet the real world and the real production environment with its many hidden difficulties.

Taking into account how different target environments and extraordinary customer needs may be, or whatever operational qualities are required, we may notice that the release process itself could be complicated and deserves at least a few books on its own. Here, we do not cover topics related to delivering software but only take a quick look at different...