Postgres 19 is late, and it's AI's fault

PostgreSQL 19 will likely ship in November rather than the usual mid-September to mid-October window, after several large features (UPDATE/DELETE FOR PORTION OF, SQL/PGQ, and ALTER TABLE … MERGE/SPLIT PARTITION) were reverted between August 27 and September 15. The author attributes this to LLMs making it far easier to find bugs: back-patched commits rose more than 60% year over year (724 to 1169 on the stable branch) and more than 74% for the prior release (248 to 433), diverting committer time into fixes and leaving less for release review. He calls the delay a quality-driven, not alarming, outcome, but questions how the project will ever catch up on decades of latent bugs and continue to innovate.