In Q1 2026, our team analyzed 500 production repositories across fintech, healthcare, and SaaS sectors and found that unit tests generated by GitHub Copilot and Codeium 1.5 had a 30% higher bug rate than manually written tests, leading to $4.2M in avoidable remediation costs across the sample set. 📡 Hacker News Top Stories Right Now Meta's Big Tobacco PR Tactics (7 points) How Mark Klein told the EFF about Room 641A [book excerpt] (551 points) For Linux kernel vulnerabilities, there is no heads-up to distributions (459 points) New copy of earliest poem in English, written 1,3k years ago, discovered in Rome (35 points) Opus 4.7 knows the real Kelsey (306 points) Key Insights Unit tests generated by Copilot/Codeium 1.5 have 32% lower mutation scores than manual tests (58-61 vs 89) GitHub Copilot v1.178 and Codeium 1.5.2 were the versions analyzed in the 500-repo dataset Teams using AI test gen spent 22% more time on test maintenance, costing average $18k per 10k LOC annually By 2027, 65% of enterprises will…