[citation needed] In late 2016 the project merged experimental FreeBSD support.

[1] However, the 389 Directory Server team, as of 2017, is likely to remove HPUX and Solaris support in the upcoming 1.4.x series.

389 Directory Server is derived from the original University of Michigan Slapd project.

AOL/Netscape's rights were acquired by Red Hat, and on June 1, 2005, much of the source code was released as free software under the terms of the GNU General Public License (GPL).

As of 389 Directory Server version 1.0 (December 1, 2005), Red Hat released as free software all the remaining source code for all components included in the release package (admin server, console, etc.)