Apache Airflow 2 reached end of life in April 2026. Security patches have stopped and CVEs will remain unpatched. Ksolves delivers a complete Apache Airflow upgrade service that moves organizations from Airflow 2 to Airflow 3 with a full DAG refactor, zero-downtime production cutover, and a named engineering team accountable for every deliverable from audit to go-live. The service covers six key phases: DAG Compatibility Audit — Systematic analysis of every DAG in your Airflow 2 inventory, identifying breaking changes, deprecated operators, changed import paths, and provider compatibility gaps before migration begins. Full DAG Refactor — Complete refactoring of your DAG codebase to Airflow 3 standards, replacing deprecated operators, fixing import paths, and updating task dependency patterns. Environment Preparation — Provider packages updated to Airflow 3 compatible versions, Python dependencies resolved, and executor configurations (Celery, Kubernetes, Local) updated. Staging Validation — All refactored DAGs tested in an Airflow 3 staging environment mirroring production, with execution results validated against pre-migration baselines. Zero-Downtime Production Cutover — Migration executed without interrupting dependent pipelines, dashboards, or scheduled processes. Post-Upgrade Validation — DAG execution monitored across complete schedule cycles before formal project sign-off. Named engineering team. Same engineers from audit to go-live. ISO 27001, SOC 2 Type II, GDPR compliant. Airflow 2 is unpatched — upgrade now.