Meta code volume up 106%

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062026-11AI-generated code surges, forcing a rethink of code reviewMartin Fowler's blog reports that Meta's significant lines of code per landed diff per person rose 106% in a year, while median PR size grew 64%, as the volume of AI-generated code rapidly outpaces what human review can handle. The tech community is debating what code review is for, with one view holding that teams have been using review to solve the wrong problems rather than AI breaking review.Martin Fowler