Original sentence: Other allegations include trade-secret violations by IBM, or contract violations by former Santa Cruz customers who have since converted to Linux.SCO have alleged that Linux contains copyrighted Unix code now owned by The SCO Group.This new player then started legal action against various users and vendors of Linux
Edited sentence: If this is upheld it would affect all Unix licensees.Others allege trade-secret violations by IBM, or contract violations by former Santa Cruz customers who have since converted to Linux.Some of these allege that Linux contains copyrighted Unix code now owned by The SCO Group.The SCO Group has offered various legal theories over the course of several cases.The most far-reaching theory is that development work that IBM did for AIX is considered a derivative work and therefore also owned by SCO.This new player then started a huge legal campaign against various users and vendors of Linux.Under a program called SCOsource, the SCO Group is now offering licenses to all companies and individuals wishing to use operating systems with code based on UNIX System V Release 4 (and their own release, UNIX System V, Release 5)