Distributed Cache Invalidation for Carrier Integration Middleware: Edge-Deployed Patterns That Survive API Migration Storms and Rate Limiting Cascades
The carrier API migration crisis hitting logistics teams in 2026 demands a complete rethink of distributed caching architecture. USPS Web Tools shut down on January 25, 2026, and FedEx SOAP endpoints retire on June 1, 2026. Meanwhile, USPS's new APIs enforce strict rate limits of approximately 60 requests