Change effective on 17 January 2018
Introducing larger database sizes, more generous resource allocations, and a broader set of plans to suit your needs and to help your applications scale more affordably. PGX Plans are generally available as of today, and all new Postgres databases will be created on our latest generation of Postgres infrastructure. Underneath the hood, we’ve upgraded the CPU, memory, storage, and networking aspects to ensure your Postgres database is running smoothly at scale.
To see which of your Heroku Postgres databases can take advantage of PGX Plans, visit data.heroku.com.
For a summary of performance characteristics for the new plans, see the Dev Center.