Changes

Today, the main AT&T branch of Unix is nearly irrelevant, having been eclipsed by the Unix-like [[Linux]] operating system and the various [[BSD]] derivatives.  [[Sun]]'s [[OpenSolaris]] and [[HP]]'s [[HP-UX]] are the only offshoots of [[SVR4]] still in development and widespread use.

Today, the main AT&T branch of Unix is nearly irrelevant, having been eclipsed by the Unix-like [[Linux]] operating system and the various [[BSD]] derivatives.  [[Sun]]'s [[OpenSolaris]] and [[HP]]'s [[HP-UX]] are the only offshoots of [[SVR4]] still in development and widespread use.