<s>
Apache	B-Language
Avalon	I-Language
is	O
a	O
computer	O
software	O
framework	O
developed	O
in	O
1999	O
as	O
a	O
project	O
to	O
provide	O
a	O
reusable	O
component	O
framework	O
for	O
container	O
(	O
server	B-Application
)	O
applications	O
.	O
</s>
<s>
Avalon	B-Language
pioneered	O
the	O
use	O
of	O
design	O
patterns	O
such	O
as	O
separation	O
of	O
concerns	O
(	O
SoC	O
)	O
and	O
inversion	B-Language
of	I-Language
control	I-Language
(	O
IoC	O
)	O
.	O
</s>
<s>
By	O
2004	O
Avalon	B-Language
had	O
grown	O
into	O
several	O
subprojects	O
which	O
have	O
since	O
separated	O
into	O
the	O
following	O
:	O
</s>
<s>
Excalibur	O
:	O
Apache	B-Language
Excalibur	I-Language
houses	O
the	O
Avalon	B-Language
4.x	O
framework	O
,	O
the	O
Fortress	O
IoC	O
container	O
,	O
and	O
several	O
Avalon	B-Language
related	O
components	O
and	O
utilities	O
such	O
as	O
LogKit	O
and	O
the	O
Cornerstone	O
Component	O
Collection	O
.	O
</s>
<s>
Loom	O
:	O
Codehaus	O
Loom	O
continues	O
development	O
of	O
a	O
microkernel	O
container	O
after	O
the	O
design	O
of	O
Avalon	B-Language
Phoenix	O
.	O
</s>
<s>
Castle	B-Application
:	O
an	O
IoC	O
Framework	O
and	O
Container	O
for	O
C#	O
and	O
the	O
.NET	O
platform	O
.	O
</s>
<s>
Based	O
on	O
the	O
C#	O
Avalon	B-Language
implementation	O
.	O
</s>
<s>
Excalibur	O
,	O
and	O
consequently	O
the	O
Avalon	B-Language
framework	O
,	O
was	O
retired	O
on	O
15	O
December	O
2010	O
,	O
and	O
both	O
projects	O
are	O
in	O
the	O
Apache	O
Attic	O
.	O
</s>
