Postgres 19 delayed after AI reviewers find more bugs than humans can fix

PostgreSQL 19's release has been delayed from late September/early October to November 2026, with developers reverting 8-10 significant features due to bugs discovered by AI-assisted code review tools. The AI reviewers identified both major architectural defects and numerous edge-case issues that would have previously gone unnoticed until after launch, creating a backlog of fixes that exceeded available development time. PostgreSQL leadership attributes the delay to improved tooling rather than poor development practices, and expects future release cycles to normalize as teams adapt to the higher quality standards set by AI review.