Working with the database preview environment - Amazon Aurora
Supported DB instance class typesUnsupported features in the preview environmentPostgreSQL version 16 in the Database Preview environment
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Working with the database preview environment

The PostgreSQL community releases new major version of PostgreSQL annually. Similarly, Amazon Aurora makes PostgreSQL major versions available as Preview releases. This allows you to create DB cluster using the Preview version and test out its features in the Database Preview Environment.

Aurora PostgreSQL DB clusters in the Database Preview Environment are functionally similar to other Aurora PostgreSQL DB clusters. However, you can't use a Preview version for production.

Keep in mind the following important limitations:

  • All DB instances and DB clusters are deleted 60 days after you create them, along with any backups and snapshots.

  • You can only create a DB instance in a virtual private cloud (VPC) based on the Amazon VPC service.

  • You can't copy a snapshot of a DB instance to a production environment.

The following options are supported by the Preview.

  • You can create DB instances using r5, r6g, r6i, r7g, x2g, t3 and t4g instance types only. For more information about instance classes, see Aurora DB instance classes.

  • You can use both single-AZ and multi-AZ deployments.

  • You can use standard PostgreSQL dump and load functions to export databases from or import databases to the Database Preview Environment.

Supported DB instance class types

Amazon Aurora PostgreSQL supports the following DB instance classes in the preview region:

Memory Optimized Classes

  • db.r5 – memory-optimized instance classes

  • db.r6g – memory-optimized instance classes powered by Amazon Graviton2 processors

  • db.r6i – memory-optimized instance classes

  • db.x2g – memory-optimized instance classes powered by Amazon Graviton2 processors

Note

For more information on the list of instance classes, see DB instance class types.

Burstable classes

  • db.t3.medium

  • db.t3.large

  • db.t4g.medium

  • db.t4g.large

Unsupported features in the preview environment

The following features aren't available in the preview environment:

  • Aurora Serverless v1 and v2

  • Major version upgrades (MVU)

  • No new minor versions will be released in preview region

  • RDS for PostgreSQL to Aurora PostgreSQL inbound replication

  • Amazon RDS Blue/Green deployment

  • Cross-Region snapshot copy

  • Aurora global database

  • Database activity streams (DAS), RDS Proxy, and Amazon DMS

  • Auto scaling read replicas

  • Amazon Bedrock

  • RDS export

  • Performance Insights

  • Global write forwarding

  • Optimized Reads

  • Babelfish

  • Custom endpoints

  • Snapshot copy

PostgreSQL version 16 in the Database Preview environment

This is preview documentation for Aurora PostgreSQL version 16. It is subject to change.

PostgreSQL version 16.0 is now available in the Amazon RDS Database Preview environment. PostgreSQL version 16 contains several improvements that are described in the following PostgreSQL documentation:

For information on the Database Preview Environment, see Working with the database preview environment. To access the Preview Environment from the console, select https://console.amazonaws.cn/rds-preview/.

Note

It is not recommend to use PostgreSQL version 16.0 in the Database Preview environment as Aurora PostgreSQL version 16.1 is now generally available. For more information, see Amazon Aurora PostgreSQL updates.