<s>
Yii	B-Language
is	O
an	O
open	B-Application
source	I-Application
,	O
object-oriented	B-Language
,	O
component-based	B-Architecture
MVC	O
PHP	B-Application
web	B-Application
application	I-Application
framework	I-Application
.	O
</s>
<s>
Yii	B-Language
is	O
pronounced	O
as	O
"	O
Yee	O
"	O
or	O
 [ ji: ] 	O
and	O
in	O
Chinese	O
it	O
means	O
"	O
simple	O
and	O
evolutionary	O
"	O
and	O
it	O
can	O
be	O
an	O
acronym	O
for	O
"	O
Yes	O
It	O
Is	O
!	O
</s>
<s>
Yii	B-Language
started	O
as	O
an	O
attempt	O
to	O
fix	O
perceived	O
drawbacks	O
of	O
the	O
PRADO	B-Language
framework	I-Language
:	O
Slow	O
handling	O
of	O
complex	O
pages	O
,	O
steep	O
learning	O
curve	O
and	O
difficulty	O
to	O
customize	O
many	O
controls	O
.	O
</s>
<s>
In	O
October	O
2006	O
,	O
after	O
ten	O
months	O
of	O
development	O
,	O
the	O
first	O
alpha	O
version	O
of	O
Yii	B-Language
was	O
released	O
,	O
followed	O
by	O
the	O
formal	O
1.00	O
release	O
in	O
December	O
2008	O
.	O
</s>
<s>
Yii	B-Language
1.1	O
was	O
released	O
in	O
January	O
2010	O
adding	O
a	O
form	O
builder	O
,	O
relational	O
Active	O
record	O
queries	O
,	O
a	O
unit	O
testing	O
framework	O
and	O
more	O
.	O
</s>
<s>
The	O
Yii	B-Language
community	O
continues	O
to	O
follow	O
the	O
1.1	O
branch	O
with	O
PHP7+	O
support	O
and	O
security	O
fixes	O
.	O
</s>
<s>
In	O
May	O
2011	O
the	O
developers	O
decided	O
to	O
use	O
new	O
PHP	B-Application
versions	O
and	O
fix	O
architectural	O
shortcomings	O
,	O
resulting	O
in	O
version	O
2.0	O
.	O
</s>
<s>
In	O
May	O
2013	O
the	O
Yii	B-Language
2.0	O
code	O
went	O
public	O
,	O
followed	O
by	O
the	O
first	O
stable	O
release	O
in	O
October	O
2014	O
.	O
</s>
<s>
The	O
Yii	B-Language
project	O
includes	O
a	O
repository	O
of	O
user-contributed	O
extensions	O
in	O
addition	O
to	O
an	O
official	O
extension	O
library	O
,	O
zii	O
,	O
which	O
was	O
merged	O
with	O
the	O
core	O
framework	O
;	O
it	O
has	O
been	O
bundled	O
in	O
every	O
release	O
since	O
Yii	B-Language
version	O
1.1.0	O
and	O
includes	O
additional	O
widgets	O
such	O
as	O
grids	O
and	O
jQuery	B-Language
UI	I-Language
.	O
</s>
