Document Types > Document Types > Schema Overview > Migrating Existing Document Types
Migrating Existing Document Types
Be aware that XML DTDs parsed with versions of Epic Editor earlier than 5.0 were not required to rigidly meet the rules for XML document types. These same document types may fail to parse with this release of Arbortext Editor. Refer to Document type migration issues for a detailed list of migration issues to consider when moving to a later release of Arbortext Editor.