<s>
CodeIgniter	B-Language
is	O
an	O
open-source	B-Application
software	I-Application
rapid	O
development	O
web	B-Application
framework	I-Application
,	O
for	O
use	O
in	O
building	O
dynamic	O
web	O
sites	O
with	O
PHP	B-Application
.	O
</s>
<s>
CodeIgniter	B-Language
is	O
loosely	O
based	O
on	O
the	O
popular	O
model	O
–	O
view	O
–	O
controller	O
(	O
MVC	O
)	O
development	O
pattern	O
.	O
</s>
<s>
While	O
controller	O
classes	O
are	O
a	O
necessary	O
part	O
of	O
development	O
under	O
CodeIgniter	B-Language
,	O
models	O
and	O
views	O
are	O
optional	O
.	O
</s>
<s>
CodeIgniter	B-Language
can	O
be	O
also	O
modified	O
to	O
use	O
Hierarchical	O
Model	O
View	O
Controller	O
(	O
HMVC	O
)	O
which	O
allows	O
the	O
developers	O
to	O
maintain	O
modular	O
grouping	O
of	O
Controller	O
,	O
Models	O
and	O
View	O
arranged	O
in	O
a	O
sub-directory	O
format	O
.	O
</s>
<s>
CodeIgniter	B-Language
is	O
most	O
often	O
noted	O
for	O
its	O
speed	O
when	O
compared	O
to	O
other	O
PHP	B-Application
frameworks	O
.	O
</s>
<s>
In	O
a	O
critical	O
take	O
on	O
PHP	B-Application
frameworks	O
in	O
general	O
,	O
PHP	B-Application
creator	O
Rasmus	O
Lerdorf	O
spoke	O
at	O
frOSCon	O
in	O
August	O
2008	O
,	O
noting	O
that	O
he	O
liked	O
CodeIgniter	B-Language
"	O
because	O
it	O
is	O
faster	O
,	O
lighter	O
and	O
the	O
least	O
like	O
a	O
framework.	O
"	O
</s>
<s>
CodeIgniter	B-Language
's	O
source	O
code	O
is	O
maintained	O
at	O
GitHub	B-Application
,	O
and	O
as	O
of	O
the	O
preview	O
version	O
3.0rc	O
,	O
is	O
certified	O
open	B-Application
source	I-Application
software	I-Application
licensed	O
with	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
<s>
Versions	O
of	O
CodeIgniter	B-Language
prior	O
to	O
3.0.0	O
are	O
licensed	O
under	O
a	O
proprietary	O
Apache/BSD	O
-style	O
open	O
source	O
license	O
.	O
</s>
<s>
A	O
2011	O
decision	O
to	O
switch	O
licensing	O
to	O
the	O
Open	B-License
Software	I-License
License	I-License
(	O
OSL	O
)	O
sparked	O
some	O
community	O
controversy	O
,	O
especially	O
about	O
the	O
GPL	B-License
incompatibility	O
of	O
the	O
new	O
license	O
,	O
to	O
which	O
EllisLab	O
has	O
responded	O
with	O
a	O
series	O
of	O
articles	O
entitled	O
Software	O
License	O
Awareness	O
Week	O
.	O
</s>
<s>
The	O
first	O
public	O
version	O
of	O
CodeIgniter	B-Language
was	O
released	O
by	O
EllisLab	O
on	O
February	O
28	O
,	O
2006	O
.	O
</s>
<s>
On	O
July	O
9	O
,	O
2013	O
,	O
EllisLab	O
announced	O
that	O
it	O
was	O
seeking	O
a	O
new	O
owner	O
for	O
CodeIgniter	B-Language
,	O
citing	O
a	O
lack	O
of	O
resources	O
to	O
give	O
the	O
framework	O
the	O
attention	O
they	O
felt	O
it	O
deserved	O
.	O
</s>
<s>
On	O
October	O
6	O
,	O
2014	O
,	O
EllisLab	O
announced	O
that	O
CodeIgniter	B-Language
would	O
continue	O
development	O
under	O
the	O
stewardship	O
of	O
the	O
British	O
Columbia	O
Institute	O
of	O
Technology	O
.	O
</s>
<s>
As	O
of	O
October	O
23	O
,	O
2019	O
,	O
with	O
the	O
CodeIgniter	B-Language
Foundation	O
taking	O
the	O
reins	O
,	O
CodeIgniter	B-Language
is	O
no	O
longer	O
under	O
the	O
care	O
of	O
the	O
British	O
Columbia	O
Institute	O
of	O
Technology	O
.	O
</s>
<s>
CodeIgniter	B-Language
4	O
was	O
released	O
On	O
February	O
24	O
,	O
2020	O
,	O
the	O
birthday	O
of	O
Jim	O
Parry	O
,	O
the	O
project	O
lead	O
of	O
CodeIgniter	B-Language
4	O
,	O
and	O
who	O
died	O
on	O
January	O
15	O
,	O
2020	O
.	O
</s>
