PostgreSQL 19 delayed to November as AI code reviews surface more bugs

The PostgreSQL Global Development Group has delayed PostgreSQL 19 to around November 19, and developers have reverted between eight and 10 significant features to PostgreSQL 20.

PostgreSQL committer Peter Eisentraut of EDB says LLM-assisted code review found a long tail of edge-case defects that would have taken too long to fix before release.

Eisentraut says PostgreSQL 19 will still include REPACK CONCURRENTLY, which avoids the table-lock VACUUM FULL operation.