Code Churn Doubled While We Were Celebrating AI Speed Gains

The number that should worry you AI now generates roughly 41% of all code in professional workflows. Code churn — lines reverted or substantially rewritten within two weeks of being merged — has doubled from 3.3% to 7.1%, according to GitClear's analysis of over 211 million lines of code. Meanwhile, Google's 2024 DORA report found that delivery stability decreased 7.2% year over year. More code ships. More of it breaks. These aren't contradictory trends. They're the same trend. We...