Database Reference
In-Depth Information
Postgres supported versions
PostgreSQL is a relational database, open source, and very powerful. It has over 20 years
of development and has a proved and reliable architecture. It is commonly adopted in many
applications because of the following advantages:
• An open-source SQL standard compliant RDBMS
• Strong community
• Strong third-party support
• Extensible
• Objective
PostgreSQL is provided on Heroku via an add-on. This add-on has a free initial plan, only
for small applications such as websites or blogs and then is available at a given series of
paid plans, according to your need.
Each year a new version of PostgreSQL is released and Heroku adopts the newest version
as standard in a very short time. Heroku keeps the current version and the last three ver-
sions. The versions currently available are:
• 9.4 (beta)
• 9.3 (default)
• 9.2
• 9.1
• 9.0 (deprecated, support ended December 3, 2014)
This means that every three years you need to upgrade the version of PostgreSQL used in
your application because a new version of PostgreSQL is available and the last one is de-
precated.
