Answer:
The developer develops the user manuals to support their products. And agile development process is being used to make the user manual. The technical write this, but they first talk to developers, designers, project managers, team leaders etc. and collect all the information from them. And they start making them since start of the project. They use jira, git and various version control to update this document. And all the functionalities must be mentioned accurately, as well as latest of them to ensure reliability and credibility. Devops is another automated technology being used extensively these days.
Step-by-step explanation:
The answer is self explanatory.