20. Database Servers
![[Tip]](./stylesheet-images/tip.png) | Latest Release Notes on the Web |
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These release notes may be updated. Visit http://docs.fedoraproject.org/release-notes/ to view the latest release notes for Fedora. |
20.1. MySQL
Fedora now provides MySQL 5.0.45. For a list of the enhancements provided by this version, refer to http://dev.mysql.com/doc/refman/5.0/en/mysql-5-0-nutshell.html.
For more information on upgrading databases from previous releases of MySQL, refer to the MySQL website at http://dev.mysql.com/doc/refman/5.0/en/upgrade.html.
20.1.1. DBD Driver
The MySQL DBD driver has been dual-licensed and the related licensing issues have been resolved (https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=222237). The resulting apr-util-mysql package is now included in the Fedora software repositories.
20.2. PostgreSQL
This release of Fedora includes PostgreSQL 8.2.4. For more information on this new version, refer to http://www.postgresql.org/docs/whatsnew.
![[Important]](./stylesheet-images/important.png) | Upgrading Databases |
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Before upgrading an existing Fedora system with a PostgreSQL database, it could be necessary to follow the procedure described at http://www.postgresql.org/docs/8.2/interactive/install-upgrading.html. Otherwise the data may be not accessible by the new version of PostgreSQL. |