Description: A multi-branch pipeline in GitLab CI is a set of automated processes that run for different branches of a code repository. This approach allows development teams to manage and validate changes across multiple lines of development simultaneously, facilitating continuous integration and continuous delivery (CI/CD). Each branch can have its own set of tests and deployments, enabling developers to work on features or bug fixes in isolation without interfering with others’ work. This functionality is particularly useful in agile development environments, where changes are frequent and quick feedback on code quality is required. Additionally, multi-branch pipelines can be configured to trigger automatically when a ‘push’ is made to a specific branch, optimizing the workflow and reducing wait times for change validation. In summary, this type of pipeline is an essential tool for maintaining software quality and accelerating the development process, allowing teams to deliver new features more efficiently and reliably.