Posted On: Sep 11, 2023
Amazon Relational Database Service (Amazon RDS) PostgreSQL Multi-AZ Deployments with two readable standbys now supports major version upgrades. Starting today, you can upgrade your RDS for PostgreSQL Multi-AZ Deployments with two readable standbys from major version 13.4 and above and 14.5 and above to 15.4 with just a few clicks on the AWS Management Console.
PostgreSQL 15.4 offers several performance and feature benefits that include SQL standard "MERGE" command for conditional SQL queries, performance improvements for both in-memory and disk-based sorting, and support for two-phase commit and row/column filtering for logical replication. The PostgreSQL 15 release also adds support for new extension pg_walinspect, and server-side compression with Gzip, LZ4, or Zstandard (zstd) using pg_basebackup. We encourage you to read about what's new in PostgreSQL 15 and test your application for compatibility before you upgrade your databases.
For a full list of the Amazon RDS Multi-AZ with two readable standbys regional availability and supported engine versions, refer the Amazon RDS User Guide.
Learn more about Amazon RDS Multi-AZ deployments in the AWS News Blog. Create or update a fully managed Amazon RDS Multi-AZ database with two readable standby instances in the Amazon RDS Management Console.