High Availability Architecture

Apr 24, 2026 · Artificial Intelligence

Claude’s Official Report Reveals Three Quality Degradation Issues and Fixes

Anthropic’s recent report details three independent changes that caused quality regressions in Claude Code and Agent SDK—lowered default reasoning effort, a caching bug that erased thinking history, and an overly restrictive system prompt—each fixed by April 20 in version v2.1.116+, with plans to prevent future incidents.