Source patches are available to upgrade X11R6.3 PL1 from the X Consortium to XFree86 3.3. Binaries for many OSs are also available.
and the following mirror sites:
Ensure that you are getting XFree86 3.3 - some of these sites may archive older releases as well. Check the RELNOTES to find which files you need to take from the archive.
$XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/README.sgml,v 3.75.2.16 1997/06/01 12:33:34 dawes Exp $ $XConsortium: README.sgml /main/31 1996/10/28 05:43:24 kaleb $
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