<s>
Xsun	B-Application
is	O
an	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
(	O
X11	B-Operating_System
)	O
display	O
server	O
implementation	O
included	O
with	O
Solaris	B-Application
,	O
developed	O
by	O
Sun	O
Microsystems	O
.	O
</s>
<s>
It	O
replaced	O
the	O
older	O
Xnews	B-Device
server	O
,	O
which	O
supported	O
the	O
display	O
of	O
not	O
only	O
X11	B-Operating_System
applications	O
,	O
but	O
also	O
NeWS	O
and	O
SunView	B-Library
programs	O
.	O
</s>
<s>
Xsun	B-Application
discontinued	O
support	O
for	O
these	O
legacy	O
environments	O
,	O
and	O
added	O
support	O
for	O
Display	O
PostScript	O
.	O
</s>
<s>
Xsun	B-Application
was	O
first	O
released	O
as	O
part	O
of	O
Solaris	B-Application
2.3	O
in	O
November	O
1993	O
.	O
</s>
<s>
It	O
was	O
originally	O
based	O
on	O
X11R5	B-Operating_System
;	O
the	O
version	O
included	O
with	O
Solaris	B-Application
10	I-Application
is	O
based	O
on	O
X11R6.6	O
.	O
</s>
<s>
Solaris	B-Application
10	I-Application
includes	O
both	O
Xsun	B-Application
and	O
the	O
X.Org	B-Operating_System
Server	I-Operating_System
,	O
Xorg	B-Operating_System
,	O
the	O
open-source	B-Application
software	I-Application
reference	O
implementation	O
of	O
X	B-Operating_System
,	O
based	O
on	O
X11R7	B-Operating_System
.	O
</s>
<s>
The	O
Xorg	B-Operating_System
server	I-Operating_System
was	O
the	O
most	O
commonly	O
used	O
display	O
server	O
on	O
x86	B-Operating_System
systems	O
,	O
while	O
the	O
Xsun	B-Application
server	O
remained	O
the	O
most	O
commonly	O
used	O
on	O
SPARC	B-Architecture
systems	O
;	O
Xorg	B-Operating_System
support	O
for	O
SPARC	B-Architecture
was	O
only	O
added	O
in	O
Solaris	B-Application
10	I-Application
8/07	O
,	O
and	O
had	O
very	O
limited	O
driver	O
support	O
.	O
</s>
<s>
The	O
OpenSolaris	B-Operating_System
project	O
stated	O
that	O
the	O
future	O
direction	O
of	O
X	B-Operating_System
support	O
is	O
the	O
X.Org	O
implementation	O
.	O
</s>
<s>
Oracle	B-Application
Solaris	I-Application
11	O
,	O
released	O
in	O
November	O
,	O
2011	O
,	O
includes	O
only	O
the	O
Xorg	B-Operating_System
server	I-Operating_System
(	O
X.Org	O
1.10.3	O
)	O
.	O
</s>
<s>
In	O
contrast	O
to	O
XFree86	B-Device
,	O
Xsun	B-Application
implemented	O
kernel-based	O
mode	B-Operating_System
setting	I-Operating_System
for	O
some	O
graphics	O
device	B-Application
drivers	I-Application
.	O
</s>
