PostgreSQL 19 Release Candidate 1 has been released, introducing around 200 new features, including a native REPACK command, parallel autovacuum, and online logical replication. However, users should be cautious of several default changes, such as JIT being turned off by default and the removal of RADIUS support, which could impact performance and compatibility during upgrades. The release is considered significant for its breadth, enhancing various workflows for database operators and developers alike. With General Availability set for November 19, 2026, it is recommended that users test the release candidate to identify any potential issues before upgrading
PostgreSQL 19 RC1 Released: Native REPACK, Parallel Autovacuum, and Upgrades to Watch
PostgreSQL 19 RC 1 shipped today as the first candidate toward a November 19 GA date, packing roughly 200 new features. The headline additions include a native REPACK CONCURRENTLY command, parallel autovacuum, online logical replication, and a new WAIT command for read-your-writes on standbys. But the upgrade isn't a no-op: JIT is now off by default, TOAST compression flips to LZ4, RADIUS support is gone, and a few compatibility landmines like btree_gist inet/cidr indexes can block a clean pg_upgrade. RC 2 lands November 12 and GA is targeted for November 19, so test before you move.
