Posted On: Oct 18, 2022

Amazon RDS for PostgreSQL 15 Release Candidate 2 (RC2) is now available in the Amazon RDS Database Preview Environment, allowing you to test the release candidate of PostgreSQL 15 on Amazon RDS for PostgreSQL. You can deploy PostgreSQL 15 RC2 for development and testing in the Amazon RDS Database Preview Environment without the hassle of installing, provisioning, and managing the database. 

The PostgreSQL community released PostgreSQL 15 RC2 on October 6, 2022. New features in PostgreSQL 15 RC2 include the 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 RC2 release also adds support for server-side compression with Gzip, LZ4, or Zstandard (zstd) using pg_basebackup. Please refer to the PostgreSQL community announcement for more details about the release.

The Amazon RDS Database Preview Environment supports both Single-AZ and Multi-AZ deployments on the latest generation of instance classes, and can be encrypted at rest using KMS keys. Amazon RDS Database Preview Environment database instances are retained for a maximum period of 60 days and are automatically deleted after the retention period. Amazon RDS database snapshots that are created in the preview environment can only be used to create or restore database instances within the preview environment. You can use standard PostgreSQL dump and load functionality to import or export your databases from the preview environment.

Amazon RDS Database Preview Environment database instances are priced the same as production RDS instances created in the US East (Ohio) Region. The AWS re:Post is available for you and the Amazon RDS team to share information and concerns about both the candidate versions of PostgreSQL 15 and the Amazon RDS Database Preview Environment.