## NUnit 2.5.9

This documentation covers the NUnit 2.5.9 release, introducing a large set of new features to NUnit, particularly in the area of parameterized or data-driven testing.

Where applicable, we have marked sections with the version in which a feature first appeared.

If you are new to NUnit, we suggest you begin by reading the Getting Started section of this site. Those who have used earlier releases may want to begin with the Upgrading section.

See the Release Notes for more information on this release.

All documentation is included in the release packages of NUnit. Beginning with NUnit 2.4.2, you may choose to download the documentation separately.