PostgreSQL 19 loses features to a scary patch contest and is likely to slip

Sources: LWN, discussion
Summary: SQL property graph queries were backed out of both PostgreSQL 19 and master. REPACK took 28 post-freeze fixes, including a data loss fix and two ACL fixes. A fourth beta was added to the cycle. Article dated 2026-09-10.
Why it matters: Upgrade planning that assumed a September PostgreSQL 19 release and assumed property graph query support needs revisiting.
Follow-up: Track the actual PostgreSQL 19 release date and whether REPACK ships in the final release.