<s>
PivotX	B-Protocol
is	O
an	O
open-source	B-Application
blog	O
software	O
written	O
in	O
PHP	B-Application
using	O
either	O
flat	B-Application
files	I-Application
or	O
a	O
database	B-Application
to	O
store	O
content	O
.	O
</s>
<s>
It	O
uses	O
the	O
Smarty	B-Language
web	B-Application
template	I-Application
system	I-Application
and	O
the	O
TinyMCE	B-Application
editor	O
.	O
</s>
<s>
Its	O
development	O
began	O
in	O
2001	O
under	O
the	O
name	O
Pivot	O
,	O
using	O
only	O
flat	B-Application
files	I-Application
.	O
</s>
<s>
In	O
2012	O
,	O
PivotX	B-Protocol
developers	O
announced	O
that	O
future	O
versions	O
of	O
this	O
CMS	O
will	O
go	O
two	O
ways	O
:	O
full-fledged	O
"	O
Pivot	O
4	O
"	O
,	O
built	O
on	O
Symfony2	B-Language
framework	O
,	O
and	O
lightweight	O
"	O
Bolt	O
"	O
CMS	O
,	O
built	O
on	O
Silex	B-Language
framework	O
.	O
</s>
<s>
However	O
,	O
work	O
continued	O
on	O
PivotX	B-Protocol
,	O
with	O
version	O
2.3.8	O
released	O
in	O
January	O
,	O
2014	O
.	O
</s>
<s>
PivotX	B-Protocol
is	O
free	B-Application
software	I-Application
released	O
under	O
the	O
GNU	B-License
GPL	I-License
2.0	O
license	O
.	O
</s>
