DITA-OT 1.4 Release
DITA Open Toolkit version 1.4
DITA-OT 1.4 was released August 12, 2007. It is a major release which includes full support for the OASIS DITA 1.1 standard.
The 1.4 release was followed by release 1.4.1; release notes for that are available here: DITA-OT 1.4.1 Release
Release notes for DITA-OT 1.4 are available in the original release annoucement here: http://tech.groups.yahoo.com/group/dita-users/message/6950