<s>
Angular	B-Language
(	O
also	O
referred	O
to	O
as	O
"	O
Angular	B-Language
2+	O
"	O
)	O
is	O
a	O
TypeScript-based	O
,	O
free	B-License
and	I-License
open-source	I-License
web	B-Application
application	I-Application
framework	I-Application
led	O
by	O
the	O
Angular	B-Language
Team	O
at	O
Google	B-Application
and	O
by	O
a	O
community	O
of	O
individuals	O
and	O
corporations	O
.	O
</s>
<s>
Angular	B-Language
is	O
a	O
complete	O
rewrite	O
from	O
the	O
same	O
team	O
that	O
built	O
AngularJS	B-Application
.	O
</s>
<s>
Angular	B-Language
is	O
a	O
Single	B-Application
Page	I-Application
Application	I-Application
(	O
SPA	O
)	O
Framework	O
which	O
is	O
used	O
for	O
creating	O
Fast	O
Web	O
Applications	O
.	O
</s>
<s>
It	O
uses	O
concepts	O
of	O
SPA	O
in	O
which	O
UI	B-Application
is	O
delivered	O
in	O
the	O
beginning	O
of	O
application	O
request	O
and	O
later	O
only	O
data	O
is	O
requested	O
which	O
makes	O
SPA	O
applications	O
fast	O
.	O
</s>
<s>
Google	B-Application
designed	O
Angular	B-Language
as	O
a	O
ground-up	O
rewrite	O
of	O
AngularJS	B-Application
.	O
</s>
<s>
Angular	B-Language
does	O
not	O
have	O
a	O
concept	O
of	O
"	O
scope	O
"	O
or	O
controllers	O
;	O
instead	O
,	O
it	O
uses	O
a	O
hierarchy	O
of	O
components	O
as	O
its	O
primary	O
architectural	O
characteristic	O
.	O
</s>
<s>
Angular	B-Language
recommends	O
the	O
use	O
of	O
Microsoft	O
's	O
TypeScript	B-Language
language	O
,	O
which	O
introduces	O
the	O
following	O
features	O
:	O
</s>
<s>
Support	O
to	O
run	O
Angular	B-Language
applications	O
on	O
servers	O
.	O
</s>
<s>
The	O
rewrite	O
of	O
AngularJS	B-Application
was	O
called	O
"	O
Angular	B-Language
2	I-Language
"	O
,	O
but	O
this	O
led	O
to	O
confusion	O
among	O
developers	O
.	O
</s>
<s>
To	O
clarify	O
,	O
the	O
Team	O
announced	O
that	O
separate	O
names	O
should	O
be	O
used	O
for	O
each	O
framework	O
with	O
"	O
AngularJS	B-Application
"	O
referring	O
to	O
the	O
1.X	O
versions	O
and	O
"	O
Angular	B-Language
"	O
without	O
the	O
"	O
JS	O
"	O
referring	O
to	O
versions	O
2	O
and	O
up	O
.	O
</s>
<s>
On	O
April	O
30	O
,	O
2015	O
,	O
the	O
Angular	B-Language
developers	O
announced	O
that	O
Angular	B-Language
2	I-Language
moved	O
from	O
Alpha	O
to	O
Developer	O
Preview	O
.	O
</s>
<s>
Angular	B-Language
2	I-Language
moved	O
to	O
Beta	O
in	O
December	O
2015	O
,	O
and	O
the	O
first	O
release	O
candidate	O
was	O
published	O
in	O
May	O
2016	O
.	O
</s>
<s>
On	O
13	O
December	O
2016	O
Angular	B-Language
4	I-Language
was	O
announced	O
,	O
skipping	O
3	O
to	O
avoid	O
a	O
confusion	O
due	O
to	O
the	O
misalignment	O
of	O
the	O
router	O
package	O
's	O
version	O
which	O
was	O
already	O
distributed	O
as	O
v3.3.0	O
.	O
</s>
<s>
Angular	B-Language
4	I-Language
is	O
backward	B-General_Concept
compatible	I-General_Concept
with	O
Angular	B-Language
2	I-Language
.	O
</s>
<s>
Angular	B-Language
version	O
4.3	O
is	O
a	O
minor	O
release	O
,	O
meaning	O
that	O
it	O
contains	O
no	O
breaking	B-General_Concept
changes	I-General_Concept
and	O
that	O
it	O
is	O
a	O
drop-in	O
replacement	O
for	O
4.x.x.	O
</s>
<s>
Angular	B-Language
5	O
was	O
released	O
on	O
1	O
November	O
2017	O
.	O
</s>
<s>
Key	O
improvements	O
in	O
Angular	B-Language
5	O
include	O
support	O
for	O
progressive	B-Application
web	I-Application
apps	I-Application
,	O
a	O
build	O
optimizer	O
and	O
improvements	O
related	O
to	O
Material	B-Application
Design	I-Application
.	O
</s>
<s>
Angular	B-Language
6	O
was	O
released	O
on	O
4	O
May	O
2018	O
.	O
</s>
<s>
This	O
is	O
a	O
major	O
release	O
focused	O
less	O
on	O
the	O
underlying	O
framework	O
and	O
more	O
on	O
the	O
toolchain	O
and	O
on	O
making	O
it	O
easier	O
to	O
move	O
quickly	O
with	O
Angular	B-Language
in	O
the	O
future	O
,	O
like	O
:	O
ng	O
update	O
,	O
ng	O
add	O
,	O
Angular	B-Language
Elements	O
,	O
Angular	B-Language
Material	O
+	O
CDK	O
Components	O
,	O
Angular	B-Language
Material	O
Starter	O
Components	O
,	O
CLI	O
Workspaces	O
,	O
Library	O
Support	O
,	O
Tree	O
Shakable	O
Providers	O
,	O
Animations	O
Performance	O
Improvements	O
,	O
and	O
RxJS	O
v6	O
.	O
</s>
<s>
Angular	B-Language
7	O
was	O
released	O
on	O
18	O
October	O
2018	O
.	O
</s>
<s>
Updates	O
regarding	O
Application	O
Performance	O
,	O
Angular	B-Language
Material	O
&	O
CDK	O
,	O
Virtual	O
Scrolling	O
,	O
Improved	O
Accessibility	O
of	O
Selects	O
,	O
now	O
supports	O
Content	O
Projection	O
using	O
web	O
standard	O
for	O
custom	O
elements	O
,	O
and	O
dependency	O
updates	O
regarding	O
Typescript	B-Language
3.1	O
,	O
RxJS	O
6.3	O
,	O
Node	O
10	O
(	O
still	O
supporting	O
Node	O
8	O
)	O
.	O
</s>
<s>
Angular	B-Language
8	O
was	O
released	O
on	O
28	O
May	O
2019	O
.	O
</s>
<s>
Featuring	O
Differential	O
loading	O
for	O
all	O
application	O
code	O
,	O
Dynamic	O
imports	O
for	O
lazy	O
routes	O
,	O
Web	O
workers	O
,	O
TypeScript	B-Language
3.4	O
support	O
,	O
and	O
Angular	B-Language
Ivy	O
as	O
an	O
opt-in	O
preview	O
.	O
</s>
<s>
Angular	B-Language
Ivy	O
opt-in	O
preview	O
includes	O
:	O
</s>
<s>
Angular	B-Language
9	O
was	O
released	O
on	O
6	O
February	O
2020	O
.	O
</s>
<s>
Angular	B-Language
has	O
been	O
updated	O
to	O
work	O
with	O
TypeScript	B-Language
3.6	O
and	O
3.7	O
.	O
</s>
<s>
Angular	B-Language
10	O
was	O
released	O
on	O
24	O
June	O
2020	O
.	O
</s>
<s>
Angular	B-Language
11	O
was	O
released	O
on	O
11	O
November	O
2020	O
.	O
</s>
<s>
Angular	B-Language
12	O
was	O
released	O
on	O
12	O
May	O
2021	O
.	O
</s>
<s>
Angular	B-Language
14	O
was	O
released	O
on	O
2	O
June	O
2022	O
.	O
</s>
<s>
Some	O
new	O
features	O
include	O
typed	O
forms	O
,	O
standalone	O
components	O
,	O
and	O
new	O
primitives	O
in	O
the	O
Angular	B-Language
CDK	O
(	O
component	O
dev	O
kit	O
)	O
.	O
</s>
<s>
Standalone	O
components	O
work	O
across	O
Angular	B-Language
,	O
and	O
they	O
now	O
fully	O
work	O
in	O
HttpClient	O
,	O
Angular	B-Language
Elements	O
,	O
router	O
and	O
more	O
.	O
</s>
<s>
Angular	B-Language
15	O
was	O
released	O
on	O
16	O
November	O
2022	O
.	O
</s>
<s>
Since	O
v9	O
,	O
the	O
Angular	B-Language
team	O
has	O
moved	O
all	O
new	O
applications	O
to	O
use	O
the	O
Ivy	O
compiler	O
and	O
runtime	O
.	O
</s>
<s>
Each	O
version	O
is	O
expected	O
to	O
be	O
backward-compatible	B-General_Concept
with	O
the	O
prior	O
release	O
.	O
</s>
<s>
The	O
Angular	B-Language
development	O
team	O
has	O
pledged	O
to	O
do	O
twice-a-year	O
upgrades	O
.	O
</s>
<s>
Angular	B-Language
versions	O
v2	O
to	O
v12	O
are	O
no	O
longer	O
under	O
support	O
.	O
</s>
<s>
Angular	B-Language
Material	O
is	O
a	O
UI	B-Application
component	O
library	O
that	O
implements	O
Material	B-Application
Design	I-Application
in	O
Angular	B-Language
.	O
</s>
