4.4BSD

The newly blessed release was called 4.4BSD-Lite and was released in June 1994 under terms identical to those used for the Networking releases. Specifically, the terms allow free redistribution in source and binary form subject only to the constraint that the University copyrights remain intact and that the University receive credit when others use the code. Simultaneously, the complete system was released as 4.4BSD-Encumbered, which still required recipients to have a USL source license.

The lawsuit settlement also stipulated that USL would not sue any organization using 4.4BSD-Lite as the base for their system. So, all the BSD groups that were doing releases at that time, BSDI, NetBSD, and FreeBSD, had to restart their code base with the 4.4BSD-Lite sources into which they then merged their enhancements and improvements. While this reintegration caused a short-term delay in the development of the various BSD systems, it was a blessing in disguise since it forced all the divergent groups to resynchronize with the three years of development that had occurred at the CSRG since the release of Networking Release 2.