Dev.to
7/24/2026
Every AI Commit Is Someone's Future Legacy Code
Short summary
AI coding tools are simultaneously helping enterprises modernize decades-old legacy systems and creating a new wave of AI-generated legacy code that developers avoid maintaining. GitClear research shows legacy refactoring dropped 74% since 2023, while Google's DORA report links every 25% increase in AI usage to 7.2% more system instability. The honest answer is that AI helps at the expensive enterprise end but quietly accelerates tech debt at the everyday developer level.
- •AI helps enterprises modernize old COBOL/RPG/IBM i systems but creates new legacy code at the daily developer level
- •Legacy refactoring dropped 74% since 2023 as developers prefer building new code over cleaning up existing code
- •Google DORA report: every 25% increase in AI usage adds 7.2% more system instability
Generated with AI, which can make mistakes.
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