A new feature called Build Pipelines is being introduced by Bitrise to help developers manage complex build structures. This feature allows users to break their workflows into stages, build and test in parallel, shard tests, and get faster PR feedback. It provides a top-level configuration for the entire CI/CD process and can be used to set up advanced configurations with multiple tasks running parallel or sequentially. The pipeline's building blocks are steps and workflows, arranged in stages that run in parallel and sequentially. Users can differentiate between standalone builds and builds part of a pipeline, fix failed builds faster with partial rebuild, and share artifacts more easily. Build Pipelines also introduces new steps such as 'rerun tests without rebuilding' and 'Pull Pipeline intermediate files', making it easier to pair up with other steps like Xcode test without building for iOS or Android Instrumented Test. Additionally, users can try out a sample iOS app to set up a pipeline without changing anything in their mobile app's YAML file.