Migrating to release 3.0

DITA-OT 3.0 includes a new map-first preprocessing routine, new transformation types that can be used to generate Markdown output from DITA source, and a DITA to DITA plug-in that generates normalized DITA output with all references resolved.

Note: This topic provides a summary of changes in DITA-OT 3.0 that may require modifications to custom stylesheets or plug-ins.

Legacy plug-ins removed

DITA-OT 3.0 no longer includes the following legacy transformation plug-ins in the default distribution:

Table 1. Legacy plug-ins
Plug-in Source code location
JavaHelp https://github.com/dita-ot/org.dita.javahelp
Note: If necessary, legacy plug-ins may be re-installed from earlier DITA-OT distributions, but they are no longer actively maintained or supported by the core toolkit committers. The source code is available on GitHub for anyone interested in maintaining the plug-ins for use with future toolkit versions.

To re-install the JavaHelp plug-in, run the following command:

dita --install https://github.com/dita-ot/org.dita.javahelp/archive/2.5.zip