AWS CodePipeline V2 type pipelines now support additional pipeline trigger filters, and two new pipeline execution modes: Parallel and Queued. Pipeline trigger filters enable customers using sources from GitHub.com, GitHub Enterprise Server, Bitbucket.com, GitLab.com, and GitLab self-managed to control when a pipeline execution should be triggered. Pipeline execution modes enable customers to control the concurrency behavior when multiple executions of a pipeline are started.
Source:: Amazon AWS