Software Release Swimlane Diagram Template

flowchart TB
    subgraph Development
        A[Merge to release branch] --> B[Build package]
        H[Fix defects]
    end
    subgraph QA
        C[Deploy to test environment] --> D{Regression passed?}
    end
    subgraph Product
        E[Acceptance and release sign-off]
    end
    subgraph Operations
        F[Canary release] --> G{Monitoring healthy?}
        I[Full rollout]
        J[Rollback]
    end
    B --> C
    D -- No --> H --> B
    D -- Yes --> E --> F
    G -- Yes --> I
    G -- No --> J --> H

Draw a software release swimlane diagram in Mermaid flowchart TB syntax. Use one subgraph per lane for [Development, QA, Product, Operations]; put each role's steps inside its own subgraph and write the edges that cross roles after all the subgraphs. The process: development merges code to the release branch and builds the package → QA deploys to the test environment and runs regression; if it fails, development fixes defects and rebuilds → if it passes, product accepts and signs off the release → operations runs a canary release and watches monitoring; if healthy, full rollout; if not, rollback and back to development for fixes. Use diamond nodes for decisions and label the branches on the edges. Output only the mermaid code block.