PostgreSQL, the world's most advanced open source relational database, has announced the release of PostgreSQL 18 RC 1, the first release candidate for version 18. The general availability of this new version is scheduled for September 25, 2025. This release includes numerous fixes and improvements, continuing PostgreSQL's 35-year history of reliability, performance, and feature robustness. The community is encouraged to test this release candidate and provide feedback before the final release.