Editing UNIX System V (section)

=== SVR5 / UnixWare 7 ===
The [[Santa Cruz Operation]] (SCO), owners of Xenix, eventually acquired the UnixWare trademark and the distribution rights to the System V Release 4.2 codebase from Novell, while other vendors (Sun, IBM, HP) continued to use and extend System V Release 4. Novell transferred ownership of the Unix trademark to [[The Open Group]]. 

System V Release 5 was developed in 1997 by the [[Santa Cruz Operation]] (SCO) as a merger of [[SCO OpenServer]] (an SVR3-derivative) and UnixWare, with a focus on large-scale servers.<ref name="Rosen">{{cite book |author=Kenneth H. Rosen |year=1999 |title=UNIX: The Complete Reference |publisher=McGraw-Hill Professional}}</ref>{{rp|23,32}} It was released as SCO UnixWare 7. SCO's successor, [[The SCO Group]], also based [[SCO OpenServer]] 6 on SVR5, but the codebase is not used by any other major developer or reseller.