PostgreSQL 18 Preview on Azure Postgres Flexible Server

Microsoft

Sep 24, 2025

We’re excited to announce the preview release of PostgreSQL 18 on Azure Database for PostgreSQL! This release unlocks a number of powerful new features and enhancements that will bring improved perfo...

Updated Oct 31, 2025

Version 6.0

Microsoft

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Bouke

Copper Contributor

Sep 29, 2025

Sadly configuring the server to use PG 18's new async IO is not possible yet. The portal UI is not updated to allow specifying io_uring.

JaredMeade
Microsoft
Oct 03, 2025
Hi Bouke! PG18 defaults use the worker io_method option, which does in fact execute asynchronous I/O (using worker processes).

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PostgreSQL 18 Preview on Azure Postgres Flexible Server