Anthropic April 23 Postmortem: 3 Confounding Changes Behind Claude Code's Month-Long Quality Drop

Anthropic April 23 Postmortem: 3 Confounding Changes Behind Claude Code's Month-Long Quality Drop Reading like an aviation accident report — engine fault, pilot error, weather. Each alone wouldn't have crashed the plane. Three together did. For the past month, developers using Claude Code have reported degraded quality: shorter responses, lost context mid-session, and faster usage limit consumption. On April 23, 2026, Anthropic published a detailed engineering postmortem confirming what many sus