Data Bricklaying Diary

Sep 7, 2026 · Backend Development

Independent Deployment ≠ Independent Evolution: Designing Dependencies, Routing & Release Architecture

The article explains why independent deployment doesn't guarantee independent service evolution, detailing five required capabilities—identifiable dependencies, compatible interfaces, controllable traffic routing, verifiable releases, and recoverable failures—using a refund service case study to illustrate dependency topology, interface evolution patterns, phased release strategies, and evidence-based rollback decisions.