# DITA Open Toolkit 4.3

DITA Open Toolkit, or DITA-OT for short, is a set of Java-based, open-source tools that provide processing for content authored in the Darwin Information Typing Architecture.

Note:
While the DITA standard is owned and developed by OASIS, the DITA Open Toolkit project is governed separately. DITA-OT is an independent, open-source implementation of the DITA standard.

## DITA-OT documentation

The DITA Open Toolkit documentation provides information about installing, running, configuring, and extending the toolkit.

- This first part includes Release Notes with information on the changes in the current release, and the Authoring formats and Output formats that are provided in the default installation of DITA-OT 4.3.
- Installing DITA Open Toolkit shows how to install the toolkit and run a build to verify the installation.
- Publishing DITA content explains the methods that can be used to publish DITA content to other formats, including the dita command, Ant, and the Java API, along with information on building output from a containerized environment such as Docker or GitHub Actions.
- Configuring DITA-OT explains how to adjust DITA Open Toolkit behavior via dita command arguments and options, parameter settings, and configuration properties.
- Extending DITA-OT with plug-ins explains how to install, remove, and discover plug-ins, and create custom plug-ins to change the default transformations or add new output formats.
- Error messages and troubleshooting contains information about resolving problems that you might encounter.
- Reference topics provide additional information about the DITA Open Toolkit Architecture, DITA specification support, and other DITA and DITA-OT resources.