PostgreSQL 18 Preview on Azure Postgres Flexible Server

We’re excited to bring the latest Postgres innovations directly into Azure. With PG18 Preview, you can already test:

🔹 Asynchronous I/O (AIO) → faster queries & lower latency
🔹 Vacuuming enhancements → less bloat, fewer replication conflicts
🔹 UUIDv7 support → better indexing & sort locality
🔹 B-Tree skip scan → more efficient use of multi-column indexes
🔹 Improved logical replication & DDL → easier schema evolution across replicas

And that’s just the start — PG18 includes hundreds of community contributions, with 496 from Microsoft engineers alone 💪

👉 Try it out today on Azure Postgres Flexible Server (initially in East Asia), share your feedback, and help shape GA.