The list of currently supported OSs with official UNIX certification from OpenGroup seems to look something like this: AIX, EulerOS, HP-UX, Inspur K-UX, MacOS, OpenServer 5, 6 & 10, Solaris, z/OS.
Now this official definition probably does not look very satisfying from the point of view of a hacker who cares a bit about Unix. It contains OSs that are Linux (at least Inspur K-UX) and z/OS looks being just Unix compatible (not even a Unix clone) and of course the list does not contain "unofficial" descendants of Unix.
If we discard this official list as inappropriate, then what do you think that counts as Unix today? All these free software BSD projects, right? And maybe those industrial OSs like AIX, HP-UX, OpenServer and Solaris which are clearly descendants of previous Unix versions? What else? MacOS is an unclear case to me (have not used it).
Opinions?
Now this official definition probably does not look very satisfying from the point of view of a hacker who cares a bit about Unix. It contains OSs that are Linux (at least Inspur K-UX) and z/OS looks being just Unix compatible (not even a Unix clone) and of course the list does not contain "unofficial" descendants of Unix.
If we discard this official list as inappropriate, then what do you think that counts as Unix today? All these free software BSD projects, right? And maybe those industrial OSs like AIX, HP-UX, OpenServer and Solaris which are clearly descendants of previous Unix versions? What else? MacOS is an unclear case to me (have not used it).
Opinions?