PostgreSQL 19 Delayed Due to Flood of Bugs from LLM Reviewers

The release of PostgreSQL 19 has been moved from the usual September–October window to November 19, 2026. Committer Robert Haas attributes the delay to LLM reviewers finding bugs en masse, which forced the rollback of three major features.

Compiled by Sergey KostenchukPublished 2026-10-31Updated 2026-10-31

2026-10-31 Coding

🤖 PostgreSQL 19 Delayed Due to Flood of Bugs from LLM Reviewers

The release has been moved from the usual September–October window to November 19, 2026 (RC 1 — October 15, RC 2 — November 12). Committer Robert Haas links the delay to LLM reviewers finding bugs en masse: from April to September, commits to master grew from 1,037 to 1,443 (+39%), while stable branches saw increases of 61% and 74%. As a result, three major features were rolled back, including SQL/PGQ.

🌍 LLMs are finding more bugs than humans can verify and commit in time, so resources were diverted to fixing stable branches, and completed features were rolled back. This is currently the perspective of one committer.

👤 Are you planning a migration to PostgreSQL 19 or waiting for REPACK CONCURRENTLY (which remains in the release)? Mark November 19, 2026, on your calendar.

Source 1: http://rhaas.blogspot.com/2026/10/postgres-19-is-late-and-its-ais-fault.html

Source 2: https://www.postgresql.org/about/news/postgresql-19-rc-1-released-3409/

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