Internet Backend Architecture Stack

Sep 10, 2026 · Backend Development

Microservice API Compatibility Governance: 3 Versioning Strategies, 4 DTO Taboos & Deprecation SOP

This article analyzes microservice interface compatibility failures through real mall project incidents, defining forward/backward/bidirectional compatibility, detailing four DTO field iteration taboos with code examples, comparing three versioning strategies (URL path, request header, field adaptive), and prescribing a four-step deprecation process to eliminate technical debt.