We also recommend reading the upgrading section of the major version you are planning to upgrade to. You can upgrade from one major version to another without upgrading to intervening versions, but we recommend reading the release notes of all intervening major versions prior to doing so. Upgrading to a minor release does not normally require a dump and restore; you can stop the database server, install the updated binaries, and restart the server. For some releases, manual changes may be required to complete the upgrade, so always read the release notes before upgrading.
PostgreSQL is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
There is a wealth of information to be found describing how to install and use PostgreSQL through the official documentation. The PostgreSQL community provides many helpful places to become familiar with the technology, discover how it works, and find career opportunities.
Reach out to the community here. This release closes two security vulnerabilities and fixes over 40 bugs reported over the last three months. Additionally, this is the final release of PostgreSQL 9. Advanced users can also download a zip archive of the binaries, without the installer. This download is intended for users who wish to include PostgreSQL as part of another application installer.
Note that these builds should be used for testing purposes only , and not for production systems. The application can be installed using a user-friendly, one-click desktop installer.
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