Amazon RDS for PostgreSQL supports minor versions 18.4, 17.10, 16.14, 15.18, and 14.23

Amazon Relational Database Service (RDS) for PostgreSQL now supports the latest minor versions 18.4, 17.10, 16.14, 15.18, and 14.23. We recommend that you upgrade to the latest minor versions to fix known security vulnerabilities in prior versions of PostgreSQL, and to benefit from the bug fixes and improvements added by the PostgreSQL community. This release also adds postgis_topology support in PostGIS 3.6.3 for PostgreSQL 18, enabling you to model and query topological relationships such as network connectivity and spatial adjacency directly in your databases.

You can upgrade your databases during scheduled maintenance windows using automatic minor version upgrades. To simplify operations at scale, enable automatic minor version upgrades and use the AWS Organizations Upgrade Rollout Policy to orchestrate thousands of upgrades in phases, first to development environments before upgrading production systems. You can also use Amazon RDS Blue/Green deployments with physical replication to minimize downtime for minor version upgrades.

Amazon RDS for PostgreSQL makes it simple to set up, operate, and scale PostgreSQL deployments in the cloud. See Amazon RDS for PostgreSQL Pricing for pricing details and regional availability. Create or update a fully managed Amazon RDS database in the Amazon RDS Management Console or by using the AWS Command Line Interface (CLI).