The last version of the XPG, the X/Open Portability Guide Issue 4 (also known as the Common Applications Environment Specification Issue 4 (CAE4)), was published in July 1992 by The Open Group.
Последняя версия XPG, X/Open Portability Guide Issue 4 (известная также как Common Applications Environment Specification Issue 4 (CAE4)), была опубликована в июле 1992 года.