Download DITA-OT

Current version: DITA-OT 4.3.5 released October 21, 2025

For details on the changes in this version, see the DITA-OT 4.3 Release Notes.

Development versions

The latest development version of the distribution package is available for testing.

Recent versions with preview support for DITA 2.0

Previous versions supporting DITA 1.3 and earlier

Legacy versions supporting DITA 1.2 and earlier