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Topic: Service Reliability

AWS US-EAST-1 Incident: NLB Health Subsystem and DNS Issues, Recovery Underway

Oct 20, 20252246

An internal NLB health-monitoring failure and a DNS issue triggered widespread AWS US-EAST-1 disruptions, now largely recovering with EC2 launch throttles easing and backlogs clearing.

Cloud Infrastructure AWS Incident Response Service Reliability

Programming

We Normalized Broken Software—and Physics Won’t Bail Us Out

Oct 9, 2025314

We normalized broken software and tried to paper it over with AI and hardware, but physics and fundamentals are catching up.

Software Craftsmanship Technical Debt Technology Economics Service Reliability AI Coding Agents

Damage Control

Postmortem: Three Overlapping Infra Bugs Degraded Claude—Fixes Shipped, Evals and Tooling Upgraded

Sep 17, 2025381

Three infrastructure bugs—not load or demand—degraded Claude; rollbacks and a shift to exact top‑k fixed them, and Anthropic is upgrading evaluations and debugging while asking for user feedback.

AI Infrastructure LLM Inference Incident Response Service Reliability Corporate Accountability