What is a Pull Request primarily used for?

A Pull Request is primarily used to notify team members of changes made in a branch and to solicit feedback from them before those changes are merged into the main branch. This process facilitates collaboration among team members, allowing them to review the proposed changes, discuss potential improvements, and ensure that the code meets the project’s quality standards. By providing visibility into the changes and a platform for feedback, Pull Requests enhance code quality, support better communication within the team, and reduce the likelihood of introducing errors into the codebase.

The other choices do not capture the primary purpose of a Pull Request. Seeking authorization for deleting a branch does not align with the collaborative review aspect of Pull Requests. Automatically merging two branches without review would undermine the review process that Pull Requests are designed to facilitate. While creating a backup of changes is a positive outcome of using branching, it is not the main purpose of a Pull Request.