The PostgreSQL Global Development Group has delayed PostgreSQL 19, once due in late September or early October, to around November 19, and has pulled 8 to 10 significant features back to next year's release, The Register reports. Leading committer Peter Eisentraut wrote that some reverted features had architectural defects too big to fix quickly during beta, but that LLM-assisted code review also surfaced a long tail of small edge-case bugs that in the past might have trickled in over five years. "You're staring at a list of like forty defect reports," he wrote; even three-line fixes carry a fixed overhead each, "and then you run out of time."

Eisentraut says the affected features were written before AI review became this useful, so the effective quality bar rose after they were committed, and he expects the situation to settle in future cycles. He stresses the reverts were not caused by "vibe coding."