support multithreading libraries ( UI threads API in libthread). [ 41 ] 2.3 5.3 November 1993 - June 2002 SPARC-only release. OpenWindows 3.3 switches from NeWS to Display PostScript and drops SunView support. Support added for autofs and CacheFS filesystems. 2.4 5.4 November 1994 September 2003 First unified SPARC/x86 release. Includes