<s>
The	O
history	O
of	O
the	O
Opera	B-Application
web	I-Application
browser	I-Application
began	O
in	O
1994	O
when	O
it	O
was	O
started	O
as	O
a	O
research	O
project	O
at	O
Telenor	O
,	O
the	O
largest	O
Norwegian	O
telecommunications	O
company	O
.	O
</s>
<s>
In	O
1995	O
,	O
the	O
project	O
branched	O
out	O
into	O
a	O
separate	O
company	O
named	O
Opera	B-Application
Software	O
ASA	O
,	O
with	O
the	O
first	O
publicly	O
available	O
version	O
released	O
in	O
1996	O
.	O
</s>
<s>
Opera	B-Application
has	O
undergone	O
extensive	O
changes	O
and	O
improvements	O
,	O
and	O
introduced	O
notable	O
features	O
such	O
as	O
Speed	O
Dial	O
.	O
</s>
<s>
Until	O
version	O
2.0	O
,	O
the	O
Opera	B-Application
browser	I-Application
was	O
called	O
MultiTorg	B-Application
Opera	I-Application
(	O
version	O
1.0	O
)	O
and	O
had	O
only	O
a	O
limited	O
internal	O
release	O
—	O
although	O
it	O
was	O
demonstrated	O
publicly	O
at	O
the	O
Third	O
International	O
WWW	O
Conference	O
in	O
April	O
1995	O
.	O
</s>
<s>
In	O
February	O
2013	O
,	O
Opera	B-Application
Software	O
announced	O
that	O
their	O
in-house	O
rendering	O
engine	O
,	O
Presto	B-Application
,	O
would	O
be	O
phased	O
out	O
in	O
favour	O
of	O
WebKit	B-Language
.	O
</s>
<s>
Opera	B-Application
15	O
saw	O
the	O
browser	O
being	O
fully	O
rewritten	O
,	O
with	O
this	O
and	O
subsequent	O
releases	O
being	O
based	O
on	O
Blink	B-Language
and	O
Chromium	B-Language
.	O
</s>
<s>
Version	O
2.0	O
,	O
the	O
first	O
public	O
release	O
of	O
Opera	B-Application
,	O
was	O
released	O
as	O
shareware	B-License
in	O
1996	O
.	O
</s>
<s>
Due	O
to	O
popular	O
demand	O
,	O
Opera	B-Application
Software	O
showed	O
interest	O
in	O
programming	O
its	O
browser	O
for	O
alternative	O
operating	B-General_Concept
systems	I-General_Concept
such	O
as	O
Apple	B-Device
Macintosh	I-Device
,	O
QNX	B-Operating_System
and	O
BeOS	B-Application
.	O
</s>
<s>
On	O
October	O
10	B-Operating_System
,	O
1997	O
,	O
they	O
launched	O
"	O
Project	O
Magic	O
"	O
,	O
an	O
effort	O
to	O
determine	O
who	O
would	O
be	O
willing	O
to	O
purchase	O
a	O
copy	O
of	O
their	O
browser	O
in	O
their	O
native	O
OS	O
,	O
and	O
to	O
properly	O
distribute	O
funds	O
to	O
develop	O
or	O
outsource	O
for	O
such	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
On	O
November	O
30	O
,	O
1997	O
they	O
closed	O
voting	O
for	O
which	O
operating	B-General_Concept
system	I-General_Concept
to	O
develop	O
with	O
.	O
</s>
<s>
Project	O
Magic	O
then	O
became	O
a	O
news	O
column	O
for	O
updates	O
for	O
alternative	O
operating	B-General_Concept
systems	I-General_Concept
until	O
version	O
4	O
.	O
</s>
<s>
Opera	B-Application
3	O
was	O
the	O
first	O
version	O
of	O
Opera	B-Application
with	O
JavaScript	B-Language
support	O
,	O
but	O
Java	B-Language
was	O
still	O
missing	O
.	O
</s>
<s>
It	O
was	O
released	O
for	O
multiple	O
operating	B-General_Concept
systems	I-General_Concept
on	O
December	O
31	O
,	O
1997	O
.	O
</s>
<s>
In	O
1998	O
,	O
Opera	B-Application
3.5	O
was	O
released	O
,	O
adding	O
Cascading	B-Language
Style	I-Language
Sheets	I-Language
(	O
CSS	B-Language
)	O
support	O
and	O
file	O
upload	O
capability	O
.	O
</s>
<s>
Since	O
version	O
3.5	O
,	O
Opera	B-Application
has	O
supported	O
CSS	B-Language
,	O
and	O
Håkon	O
Wium	O
Lie	O
,	O
one	O
of	O
the	O
inventors	O
of	O
CSS	B-Language
,	O
is	O
the	O
CTO	O
at	O
Opera	B-Application
.	O
</s>
<s>
Up	O
to	O
6.0	O
Opera	B-Application
supported	O
most	O
common	O
web	O
standards	O
,	O
Netscape	O
plugins	B-Application
and	O
some	O
other	O
recent	O
standards	O
such	O
as	O
WAP	B-Protocol
and	O
WML	B-General_Concept
for	O
wireless	O
devices	O
,	O
but	O
its	O
implementation	O
of	O
advanced	O
ECMAScript	B-Language
(	O
of	O
which	O
"	O
JavaScript	B-Language
"	O
is	O
an	O
implementation	O
)	O
and	O
the	O
HTML	B-General_Concept
Document	I-General_Concept
Object	I-General_Concept
Model	I-General_Concept
was	O
poor	O
.	O
</s>
<s>
The	O
16-bit	O
version	O
of	O
Opera	B-Application
for	O
Windows	B-Application
3.62	O
is	O
the	O
last	O
version	O
to	O
support	O
Windows	B-Application
3.x	O
.	O
</s>
<s>
Further	O
releases	O
would	O
require	O
Windows	B-Application
95	I-Application
.	O
</s>
<s>
On	O
June	O
28	O
,	O
2000	B-Application
,	O
Opera	B-Application
4	O
for	O
Windows	B-Application
(	O
Elektra	B-Application
)	O
was	O
released	O
,	O
introducing	O
a	O
new	O
cross-platform	B-Operating_System
core	O
,	O
and	O
a	O
new	O
integrated	B-Operating_System
email	I-Operating_System
client	I-Operating_System
.	O
</s>
<s>
Opera	B-Application
5	O
,	O
released	O
on	O
December	O
6	O
,	O
2000	B-Application
,	O
was	O
the	O
first	O
version	O
which	O
was	O
ad-sponsored	O
instead	O
of	O
having	O
a	O
trial	O
period	O
.	O
</s>
<s>
Version	O
5	O
also	O
supported	O
ICQ	B-Protocol
,	O
but	O
this	O
was	O
dropped	O
from	O
later	O
versions	O
.	O
</s>
<s>
Opera	B-Application
supported	O
OS/2	B-Application
for	O
the	O
first	O
time	O
,	O
requiring	O
WarpIN	O
and	O
Odin	B-General_Concept
to	O
be	O
installed	O
.	O
</s>
<s>
Opera	B-Application
5.10	O
(	O
April	O
2001	O
)	O
was	O
the	O
first	O
version	O
to	O
recognize	O
mouse	O
gestures	O
,	O
but	O
this	O
feature	O
was	O
disabled	O
by	O
default	O
.	O
</s>
<s>
On	O
November	O
29	O
,	O
2001	O
,	O
Opera	B-Application
6	O
was	O
released	O
with	O
new	O
features	O
including	O
Unicode	O
support	O
,	O
and	O
offering	O
a	O
single	O
document	O
interface	O
as	O
well	O
as	O
the	O
multiple	O
document	O
interface	O
allowed	O
by	O
previous	O
versions	O
.	O
</s>
<s>
On	O
October	O
24	O
,	O
2001	O
,	O
Microsoft	O
blocked	O
users	O
of	O
browsers	O
other	O
than	O
Internet	B-Application
Explorer	I-Application
,	O
including	O
Opera	B-Application
,	O
from	O
accessing	O
MSN.com	O
.	O
</s>
<s>
However	O
,	O
as	O
late	O
as	O
November	O
2001	O
,	O
Opera	B-Application
users	O
were	O
still	O
locked	O
out	O
from	O
some	O
MSN.com	O
content	O
,	O
despite	O
Opera	B-Application
's	O
ability	O
to	O
display	O
the	O
content	O
had	O
it	O
been	O
served	O
.	O
</s>
<s>
On	O
January	O
28	O
,	O
2003	O
,	O
Opera	B-Application
7	B-Device
was	O
released	O
,	O
introducing	O
the	O
new	O
"	O
Presto	B-Application
"	O
layout	O
engine	O
,	O
with	O
improved	O
CSS	B-Language
,	O
client-side	O
scripting	O
,	O
and	O
Document	B-General_Concept
Object	I-General_Concept
Model	I-General_Concept
(	O
DOM	B-General_Concept
)	O
support	O
.	O
</s>
<s>
Mac	B-Operating_System
OS	I-Operating_System
9	I-Operating_System
support	O
was	O
dropped	O
.	O
</s>
<s>
Version	O
7.0	O
saw	O
Opera	B-Application
undergo	O
an	O
extensive	O
rewrite	O
with	O
the	O
faster	O
and	O
more	O
powerful	O
Presto	B-Application
layout	I-Application
engine	I-Application
.	O
</s>
<s>
The	O
new	O
engine	O
brought	O
almost	O
full	O
support	O
for	O
the	O
HTML	B-General_Concept
DOM	I-General_Concept
meaning	O
that	O
parts	O
of	O
,	O
or	O
a	O
whole	O
,	O
page	O
can	O
be	O
re-rendered	O
in	O
response	O
to	O
DOM	B-General_Concept
and	O
script	O
events	O
.	O
</s>
<s>
A	O
2004	O
review	O
in	O
The	O
Washington	O
Post	O
described	O
Opera	B-Application
7.5	O
as	O
being	O
excessively	O
complex	O
and	O
difficult	O
to	O
use	O
.	O
</s>
<s>
The	O
review	O
also	O
criticized	O
the	O
free	O
edition	O
's	O
use	O
of	O
obtrusive	O
advertisements	O
when	O
other	O
browsers	O
such	O
as	O
Mozilla	B-Language
and	O
Safari	B-Application
were	O
offered	O
free	O
of	O
charge	O
without	O
including	O
advertisements	O
.	O
</s>
<s>
In	O
August	O
2004	O
,	O
Opera	B-Application
7.6	O
began	O
limited	O
alpha	O
testing	O
.	O
</s>
<s>
It	O
had	O
more	O
advanced	O
standards	O
support	O
,	O
and	O
introduced	O
voice	O
support	O
for	O
Opera	B-Application
,	O
as	O
well	O
as	O
support	O
for	O
Voice	O
XML	O
.	O
</s>
<s>
Opera	B-Application
also	O
announced	O
a	O
new	O
browser	O
for	O
Interactive	O
Television	O
,	O
which	O
included	O
a	O
fit	O
to	O
width	O
option	O
Opera	B-Application
8	B-Application
introduced	O
.	O
</s>
<s>
Fit	O
to	O
Width	O
is	O
a	O
technology	O
that	O
initially	O
utilized	O
the	O
power	O
of	O
CSS	B-Language
,	O
but	O
it	O
is	O
now	O
internal	O
Opera	B-Application
technology	O
.	O
</s>
<s>
Opera	B-Application
7.6	O
was	O
never	O
officially	O
released	O
as	O
a	O
final	O
version	O
.	O
</s>
<s>
On	O
January	O
12	O
,	O
2005	O
,	O
Opera	B-Application
Software	O
announced	O
that	O
it	O
would	O
offer	O
free	O
licenses	O
to	O
higher	O
education	O
institutions	O
,	O
a	O
change	O
from	O
the	O
previous	O
cost	O
of	O
$	O
1,000	O
USD	O
for	O
unlimited	O
licenses	O
.	O
</s>
<s>
Opera	B-Application
was	O
commonly	O
criticized	O
for	O
having	O
been	O
ad-sponsored	O
,	O
since	O
this	O
was	O
seen	O
as	O
a	O
barrier	O
to	O
gaining	O
market	O
share	O
.	O
</s>
<s>
In	O
2003	O
,	O
MSN.com	O
was	O
configured	O
to	O
present	O
Opera	B-Application
browsers	I-Application
with	O
a	O
style	O
sheet	O
used	O
for	O
old	O
versions	O
of	O
Microsoft	B-Application
Internet	I-Application
Explorer	I-Application
.	O
</s>
<s>
Other	O
browsers	O
received	O
either	O
a	O
style	O
sheet	O
tailored	O
to	O
them	O
,	O
or	O
at	O
least	O
the	O
latest	O
Internet	B-Application
Explorer	I-Application
style	O
sheet	O
.	O
</s>
<s>
The	O
outdated	O
style	O
sheet	O
that	O
Opera	B-Application
received	O
caused	O
Opera	B-Application
to	O
move	O
a	O
significant	O
amount	O
of	O
com	O
's	O
content	O
30	O
pixels	B-Algorithm
to	O
the	O
left	O
of	O
where	O
it	O
should	O
be	O
,	O
distorting	O
the	O
page	O
and	O
making	O
it	O
appear	O
as	O
though	O
there	O
was	O
a	O
bug	O
in	O
Opera	B-Application
.	O
</s>
<s>
In	O
response	O
,	O
the	O
Opera	B-Application
Software	O
company	O
created	O
a	O
special	O
"	O
Bork	O
"	O
edition	O
of	O
Opera	B-Application
which	O
displayed	O
gibberish	O
instead	O
of	O
MSN.com	O
but	O
not	O
on	O
any	O
other	O
web	O
site	O
.	O
</s>
<s>
After	O
the	O
complaints	O
,	O
Microsoft	O
changed	O
their	O
servers	O
to	O
present	O
the	O
latest	O
version	O
of	O
Opera	B-Application
,	O
version	O
7	B-Device
,	O
with	O
the	O
style	O
sheet	O
served	O
to	O
the	O
latest	O
version	O
of	O
Internet	B-Application
Explorer	I-Application
,	O
which	O
resolved	O
the	O
problem	O
.	O
</s>
<s>
However	O
,	O
Microsoft	O
continued	O
to	O
serve	O
the	O
outdated	O
style	O
sheet	O
to	O
the	O
older	O
Opera	B-Application
6	O
.	O
</s>
<s>
In	O
November	O
2004	O
,	O
Opera	B-Application
Software	O
sent	O
an	O
electronic	O
message	O
to	O
Microsoft	O
,	O
complaining	O
that	O
Opera	B-Application
users	O
were	O
sent	O
an	O
incomplete	O
JavaScript	B-Language
file	O
when	O
using	O
Hotmail	B-Operating_System
(	O
now	O
Outlook.com	B-Operating_System
)	O
.	O
</s>
<s>
The	O
incomplete	O
file	O
prevented	O
Opera	B-Application
users	O
from	O
emptying	O
their	O
"	O
Junk	O
E-mail	O
"	O
folders	O
.	O
</s>
<s>
The	O
Opera	B-Application
Software	O
company	O
later	O
sent	O
a	O
physical	O
letter	O
to	O
Microsoft	O
.	O
</s>
<s>
On	O
April	O
19	O
,	O
2005	O
,	O
version	O
8.0	B-Operating_System
was	O
released	O
.	O
</s>
<s>
Besides	O
supporting	O
SVG	B-Application
Tiny	O
,	O
multimodal	O
features	O
and	O
User	O
JavaScript	B-Language
,	O
the	O
default	O
user	B-Application
interface	I-Application
was	O
cleaned	O
up	O
and	O
simplified	O
.	O
</s>
<s>
Version	O
8.0	B-Operating_System
introduced	O
support	O
for	O
Scalable	B-Application
Vector	I-Application
Graphics	I-Application
(	O
SVG	B-Application
)	O
1.1	O
Tiny	O
.	O
</s>
<s>
This	O
marked	O
the	O
first	O
major	O
web	O
browser	O
to	O
natively	O
support	O
some	O
form	O
of	O
SVG	B-Application
.	O
</s>
<s>
Version	O
8.5	O
was	O
released	O
on	O
September	O
20	O
,	O
2005	O
.	O
</s>
<s>
Opera	B-Application
announced	O
that	O
their	O
browser	O
would	O
be	O
available	O
free	O
of	O
charge	O
and	O
without	O
advertisements	O
,	O
although	O
the	O
company	O
still	O
continued	O
to	O
sell	O
support	O
contracts	O
.	O
</s>
<s>
Version	O
9.0	O
was	O
the	O
first	O
Microsoft	B-Application
Windows	I-Application
,	O
Linux	B-Application
,	O
and	O
BSD	B-Operating_System
browser	O
to	O
pass	O
the	O
Acid2	O
test	O
.	O
</s>
<s>
This	O
version	O
,	O
released	O
on	O
June	O
20	O
,	O
2006	O
,	O
added	O
XSLT	O
and	O
improved	O
SVG	B-Application
to	O
1.1	O
Basic	O
level	O
.	O
</s>
<s>
This	O
was	O
the	O
first	O
version	O
to	O
be	O
on	O
the	B-Operating_System
Wii	I-Operating_System
.	O
</s>
<s>
Beta	O
versions	O
of	O
Opera	B-Application
9	O
included	O
an	O
Easter	O
egg	O
that	O
,	O
when	O
triggered	O
,	O
affects	O
the	O
Acid2	O
test	O
.	O
</s>
<s>
After	O
the	O
page	O
has	O
been	O
open	O
for	O
a	O
while	O
,	O
the	O
eyes	O
of	O
the	O
smiley	O
will	O
follow	O
the	O
cursor	O
around	O
and	O
when	O
the	O
user	O
clicks	O
on	O
the	O
eyes	O
,	O
a	O
JavaScript	B-Language
alert	O
will	O
read	O
"	O
Because	O
just	O
passing	O
is	O
not	O
enough	O
;	O
)	O
"	O
.	O
</s>
<s>
The	O
changes	O
to	O
the	O
Acid2	O
code	O
were	O
applied	O
using	O
Opera	B-Application
's	O
browser.js	O
feature	O
,	O
and	O
remain	O
available	O
in	O
a	O
separate	O
User	O
JavaScript	B-Language
file	O
.	O
</s>
<s>
Opera	B-Application
introduced	O
Widgets	O
,	O
small	O
web	O
applications	O
,	O
a	O
built-in	O
BitTorrent	B-Protocol
client	I-Protocol
,	O
improved	O
content	O
blocking	O
and	O
a	O
built-in	O
tool	O
for	O
creating	O
and	O
editing	O
search	O
engines	O
.	O
</s>
<s>
Opera	B-Application
also	O
added	O
ability	O
to	O
read	O
MHTML	B-Application
and	O
to	O
save	O
the	O
web	O
page	O
as	O
archives	O
.	O
</s>
<s>
Version	O
9.5	O
,	O
codenamed	O
Kestrel	O
(	O
after	O
the	O
Kestrel	O
falcon	O
)	O
,	O
was	O
released	O
to	O
span	O
the	O
gap	O
between	O
Opera	B-Application
9.2	O
and	O
Opera	B-Application
10	B-Operating_System
.	O
</s>
<s>
It	O
included	O
some	O
of	O
the	O
rendering	O
improvements	O
due	O
to	O
be	O
made	O
in	O
Opera	B-Application
10	B-Operating_System
and	O
also	O
aimed	O
to	O
provide	O
better	O
integration	O
with	O
various	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
The	O
first	O
alpha	O
build	O
of	O
Opera	B-Application
9.5	O
was	O
released	O
on	O
September	O
4	O
,	O
2007	O
.	O
</s>
<s>
Opera	B-Application
9.5	O
has	O
improved	O
support	O
for	O
Cascading	B-Language
Style	I-Language
Sheets	I-Language
(	O
CSS	B-Language
)	O
,	O
including	O
many	O
more	O
CSS3	O
selectors	O
and	O
the	O
CSS2	B-Language
text-shadow	O
property	O
.	O
</s>
<s>
For	O
example	O
,	O
Opera	B-Application
9.5	O
'	O
s	O
Scalable	B-Application
Vector	I-Application
Graphics	I-Application
(	O
SVG	B-Application
)	O
implementation	O
supports	O
93.8	O
%	O
of	O
the	O
W3C	O
's	O
SVG	B-Application
test	O
suite	O
,	O
and	O
built-in	O
support	O
for	O
Animated	O
Portable	O
Network	O
Graphics	O
(	O
APNG	O
)	O
and	O
MathML	B-Language
.	O
</s>
<s>
Opera	B-Application
9.5	O
also	O
supports	O
high-security	O
Extended	B-Application
Validation	I-Application
Certificates	I-Application
and	O
added	O
malware	O
protection	O
through	O
partnership	O
with	O
Haute	O
Secure	O
.	O
</s>
<s>
The	O
interface	O
underwent	O
a	O
few	O
alterations	O
as	O
well	O
,	O
using	O
"	O
Sharp	O
"	O
by	O
default	O
,	O
a	O
new	O
skin	B-Application
designed	O
to	O
be	O
more	O
intuitive	O
,	O
though	O
the	O
classic	O
skin	B-Application
was	O
still	O
available	O
as	O
a	O
user	O
preference	O
.	O
</s>
<s>
Opera	B-Application
's	O
mail	O
client	O
,	O
Opera	B-Operating_System
Mail	I-Operating_System
,	O
has	O
been	O
updated	O
,	O
with	O
an	O
improved	O
indexing	B-Data_Structure
feature	O
and	O
many	O
bugfixes	O
.	O
</s>
<s>
Opera	B-Application
9.5	O
also	O
lets	O
users	O
save	O
bookmarks	O
,	O
notes	O
,	O
the	O
Personal	O
Bar	O
and	O
Speed	O
Dial	O
settings	O
to	O
the	O
Opera	B-Application
Link	O
service	O
.	O
</s>
<s>
These	O
preferences	O
can	O
then	O
be	O
synchronized	B-General_Concept
with	O
another	O
Opera	B-Application
browser	I-Application
,	O
such	O
as	O
a	O
copy	O
of	O
Opera	B-Protocol
Mini	I-Protocol
running	O
on	O
a	O
mobile	B-Language
phone	O
.	O
</s>
<s>
Alongside	O
the	O
new	O
features	O
,	O
Opera	B-Application
9.5	O
had	O
new	O
performance	O
improvements	O
.	O
</s>
<s>
For	O
example	O
,	O
x64-bit	O
editions	O
of	O
Opera	B-Application
for	O
compatible	O
Linux	B-Application
and	O
BSD	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
.	O
</s>
<s>
On	O
the	O
other	O
hand	O
,	O
SPARC	B-Architecture
Linux	B-Application
support	O
has	O
been	O
dropped	O
.	O
</s>
<s>
Version	O
9.6	O
improved	O
Opera	B-Application
Link	O
with	O
the	O
new	O
opportunity	O
to	O
sync	O
custom	O
search	O
engines	O
and	O
typed	O
history	O
.	O
</s>
<s>
Feed	B-General_Concept
preview	O
and	O
an	O
updated	O
Opera	B-Operating_System
Mail	I-Operating_System
client	O
were	O
additional	O
changes	O
.	O
</s>
<s>
Version	O
10	B-Operating_System
(	O
Peregrine	O
)	O
debuted	O
in	O
a	O
first	O
beta	O
version	O
on	O
June	O
3	O
,	O
2009	O
and	O
scored	O
100/100	O
on	O
the	O
Acid3	O
test	O
,	O
but	O
failed	O
the	O
smoothness	O
criteria	O
.	O
</s>
<s>
Among	O
other	O
features	O
,	O
it	O
also	O
came	O
with	O
speed	O
optimizations	O
,	O
inline	O
spell	O
checking	O
for	O
forms	O
,	O
an	O
auto	O
update	O
feature	O
,	O
HTML	B-Language
mail	O
formatting	O
,	O
web	O
fonts	O
and	O
SVG	B-Application
font	O
support	O
,	O
alpha	O
transparency	O
support	O
using	O
the	O
RGBA	O
and	O
HSLA	O
color	O
models	O
,	O
and	O
an	O
updated	O
version	O
of	O
the	O
Opera	B-Application
Dragonfly	O
web	O
debugger	O
.	O
</s>
<s>
Opera	B-Application
Turbo	I-Application
,	O
a	O
mode	O
which	O
uses	O
Opera	B-Application
's	O
servers	O
as	O
proxy	B-Application
servers	I-Application
with	O
data	O
compression	O
,	O
reducing	O
volume	O
of	O
data	O
transferred	O
by	O
up	O
to	O
80%	O
(	O
depending	O
upon	O
content	O
)	O
,	O
and	O
thus	O
increasing	O
speed	O
,	O
was	O
introduced	O
.	O
</s>
<s>
Opera	B-Application
10	B-Operating_System
was	O
officially	O
released	O
on	O
September	O
1	O
,	O
2009	O
.	O
</s>
<s>
Within	O
a	O
week	O
of	O
release	O
,	O
10	B-Operating_System
million	O
downloads	O
had	O
been	O
recorded	O
.	O
</s>
<s>
The	O
10.5x	O
versions	O
(	O
codenamed	O
Evenes	O
)	O
also	O
came	O
with	O
a	O
new	O
JavaScript	B-Language
engine	O
,	O
Carakan	O
,	O
and	O
a	O
new	O
graphics	O
backend	O
dubbed	O
Vega	O
(	O
replacing	O
the	O
previously	O
used	O
Qt	O
)	O
,	O
that	O
have	O
increased	O
its	O
speed	O
measurably	O
.	O
</s>
<s>
Then	O
version	O
10.60	O
,	O
which	O
Opera	B-Application
Software	O
claims	O
to	O
be	O
50%	O
faster	O
than	O
Opera	B-Application
10.50	O
,	O
which	O
also	O
brought	O
up	O
new	O
features	O
like	O
Geolocation	B-Language
,	O
WebM	B-Application
support	O
,	O
AVG	O
malware	O
protection	O
,	O
Speed	O
Dial	O
improvements	O
,	O
etc	O
.	O
</s>
<s>
Opera	B-Application
10.63	O
is	O
the	O
last	O
version	O
to	O
support	O
Windows	B-Application
9x	O
and	O
Windows	B-Device
NT	I-Device
4.0	I-Device
,	O
as	O
later	O
releases	O
would	O
require	O
at	O
least	O
Windows	B-Application
2000	I-Application
.	O
</s>
<s>
Opera	B-Application
11	O
(	O
codenamed	O
Kjevik	O
)	O
was	O
released	O
on	O
December	O
16	O
,	O
2010	O
with	O
new	O
features	O
including	O
extensions	B-Application
,	O
tab	O
stacking	O
,	O
visual	O
mouse	O
gestures	O
,	O
new	O
installer	O
(	O
Windows	B-Application
only	O
)	O
and	O
safety	O
improvements	O
to	O
the	O
address	O
field	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
content	O
blocker	O
list	O
now	O
can	O
be	O
synchronized	B-General_Concept
through	O
Opera	B-Application
Link	O
.	O
</s>
<s>
On	O
April	O
12	O
,	O
2011	O
,	O
Opera	B-Application
11.10	O
(	O
codenamed	O
Barracuda	O
)	O
was	O
released	O
.	O
</s>
<s>
It	O
contains	O
many	O
fixes	O
"	O
under	O
the	O
hood	O
"	O
,	O
such	O
as	O
improved	O
Turbo	O
Mode	O
,	O
a	O
plug-in	B-Application
installation	O
wizard	O
and	O
a	O
rewritten	O
Speed	O
Dial	O
.	O
</s>
<s>
Opera	B-Application
11.10	O
was	O
updated	O
to	O
use	O
the	O
new	O
Presto	B-Application
2.8	O
Rendering	O
Engine	O
.	O
</s>
<s>
On	O
May	O
18	O
,	O
2011	O
,	O
the	O
final	O
version	O
of	O
Opera	B-Application
11.11	O
was	O
released	O
with	O
improvements	O
to	O
security	O
.	O
</s>
<s>
On	O
June	O
28	O
,	O
2011	O
,	O
Opera	B-Application
11.50	O
(	O
codename	O
Swordfish	O
)	O
was	O
released	O
.	O
</s>
<s>
Equipped	O
with	O
the	O
rendering	O
engine	O
Presto	B-Application
2.9.168	O
featuring	O
up	O
to	O
20%	O
faster	O
rendering	O
of	O
CSS	B-Language
and	O
SVG	B-Application
,	O
support	O
for	O
HTML5	O
tag	O
<time>	O
,	O
Session	O
History	O
and	O
Navigation	O
,	O
it	O
also	O
features	O
extensions	B-Application
in	O
the	O
Speed	O
Dial	O
,	O
support	O
for	O
password	O
sync	O
in	O
Opera	B-Application
Link	O
and	O
an	O
updated	O
UI	O
.	O
</s>
<s>
On	O
December	O
6	O
,	O
2011	O
,	O
Opera	B-Application
11.60	O
(	O
codename	O
Tunny	O
)	O
was	O
released	O
.	O
</s>
<s>
Updated	O
with	O
the	O
newest	O
rendering	O
engine	O
Presto	B-Application
2.10.229	O
,	O
this	O
update	O
features	O
several	O
changes	O
including	O
a	O
UI	O
revamp	O
of	O
the	O
email	O
interface	O
,	O
a	O
new	O
address	O
field	O
with	O
star	O
feature	O
,	O
and	O
several	O
"	O
under	O
the	O
hood	O
"	O
as	O
new	O
HTML5	O
tags	O
and	O
parsing	O
implementations	O
,	O
full	O
ECMAScript	B-Language
5.1	O
support	O
.	O
</s>
<s>
On	O
January	O
24	O
,	O
2012	O
,	O
Opera	B-Application
11.61	O
was	O
released	O
with	O
improvements	O
to	O
security	O
and	O
stability	O
.	O
</s>
<s>
On	O
March	O
27	O
,	O
2012	O
,	O
Opera	B-Application
11.62	O
was	O
released	O
with	O
security	O
and	O
stability	O
improvements	O
,	O
bug	O
fixes	O
and	O
performance	O
improvements	O
.	O
</s>
<s>
On	O
April	O
17	O
,	O
2012	O
,	O
Opera	B-Application
11.63	O
was	O
released	O
.	O
</s>
<s>
It	O
was	O
a	O
Mac-exclusive	O
release	O
,	O
contrary	O
to	O
belief	O
that	O
Apple	O
had	O
prematurely	O
flipped	O
the	O
switch	O
,	O
making	O
this	O
release	O
available	O
for	O
Mac	O
users	O
ahead	O
of	O
Windows	B-Application
and	O
Linux	B-Application
customers	O
.	O
</s>
<s>
On	O
May	O
10	B-Operating_System
,	O
2012	O
,	O
Opera	B-Application
11.64	O
was	O
released	O
,	O
with	O
stability	O
,	O
bug	O
fixes	O
and	O
security	O
improvements	O
.	O
</s>
<s>
Opera	B-Application
released	O
version	O
12	O
Pre-Alpha	O
Build	O
1017	O
on	O
June	O
7	B-Device
,	O
2011	O
.	O
</s>
<s>
Opera	B-Application
12	O
has	O
hardware	O
acceleration	O
,	O
support	O
for	O
WebGL	O
and	O
the	O
new	O
Opera	B-Application
Reader-feature	O
.	O
</s>
<s>
Includes	O
several	O
speed	O
and	O
memory	O
improvements	O
,	O
themes	O
implementation	O
,	O
full	O
hardware	O
acceleration	O
with	O
WebGL	O
,	O
full	O
ECMAScript	B-Language
5.1	O
compliance	O
,	O
and	O
a	O
new	O
HTML5	O
parser	O
named	O
Ragnarök	O
.	O
</s>
<s>
On	O
June	O
7	B-Device
,	O
2012	O
,	O
the	O
RC1	O
version	O
of	O
Opera	B-Application
build	O
1448	O
was	O
released	O
.	O
</s>
<s>
It	O
offers	O
native	O
64-bit	O
support	O
and	O
out-of-process	O
plug-ins	B-Application
.	O
</s>
<s>
On	O
June	O
14	O
,	O
2012	O
,	O
the	O
final	O
version	O
of	O
Opera	B-Application
12.00	O
was	O
released	O
.	O
</s>
<s>
Opera	B-Application
12.01	O
,	O
with	O
some	O
minor	O
yet	O
important	O
security	O
and	O
stability	O
upgrades	O
,	O
was	O
released	O
on	O
August	O
2	O
,	O
2012	O
.	O
</s>
<s>
Opera	B-Application
12.02	O
was	O
released	O
on	O
August	O
30	O
,	O
2012	O
.	O
</s>
<s>
It	O
is	O
the	O
last	O
version	O
to	O
support	O
Windows	B-Application
2000	I-Application
but	O
the	O
succeeding	O
versions	O
would	O
need	O
at	O
least	O
Windows	B-Application
XP	I-Application
and	O
Windows	B-Application
Server	I-Application
2003	I-Application
.	O
</s>
<s>
On	O
November	O
5	O
,	O
2012	O
,	O
Opera	B-Application
12.10	O
was	O
released	O
with	O
improvements	O
,	O
bugfixes	O
and	O
security	O
updates	O
.	O
</s>
<s>
On	O
November	O
20	O
,	O
2012	O
,	O
Opera	B-Application
12.11	O
was	O
released	O
.	O
</s>
<s>
On	O
December	O
17	O
,	O
2012	O
,	O
Opera	B-Application
12.12	O
was	O
released	O
.	O
</s>
<s>
It	O
is	O
the	O
last	O
version	O
to	O
work	O
on	O
XP	B-Application
RTM	I-Application
&	I-Application
SP1	I-Application
,	O
and	O
Server	B-Application
2003	I-Application
RTM	I-Application
.	O
</s>
<s>
The	O
succeeding	O
versions	O
would	O
need	O
at	O
least	O
Windows	B-Application
XP	I-Application
SP2+	I-Application
,	O
and	O
Server	B-Application
2003	I-Application
SP1	I-Application
.	O
</s>
<s>
On	O
January	O
30	O
,	O
2013	O
,	O
Opera	B-Application
12.13	O
was	O
released	O
as	O
a	O
recommended	O
stability	O
and	O
security	O
update	O
.	O
</s>
<s>
A	O
week	O
later	O
,	O
on	O
February	O
5	O
,	O
2013	O
,	O
Opera	B-Application
12.14	O
was	O
released	O
after	O
the	O
users	O
discovered	O
an	O
autoupdate	O
crash	O
loop	O
bug	O
.	O
</s>
<s>
On	O
April	O
4	O
,	O
2013	O
,	O
Opera	B-Application
12.15	O
was	O
released	O
.	O
</s>
<s>
On	O
July	O
4	O
,	O
2013	O
,	O
Opera	B-Application
12.16	O
was	O
released	O
.	O
</s>
<s>
On	O
April	O
23	O
,	O
2014	O
,	O
Opera	B-Application
12.17	O
was	O
released	O
as	O
a	O
platform-specific	O
security	O
update	O
for	O
Windows	B-Application
to	O
fix	O
the	O
Heartbleed	B-Error_Name
bug	I-Error_Name
in	O
the	O
installer	O
and	O
autoupdater	O
of	O
Opera	B-Application
.	O
</s>
<s>
The	O
browser	O
itself	O
is	O
not	O
threatened	O
by	O
Heartbleed	B-Error_Name
.	O
</s>
<s>
On	O
February	O
16	O
,	O
2016	O
,	O
Opera	B-Application
12.18	O
was	O
released	O
for	O
the	O
Windows	B-Application
platform	O
.	O
</s>
<s>
It	O
adds	O
support	O
for	O
elliptic	O
curve	O
cryptography	O
(	O
ECC	O
)	O
as	O
well	O
as	O
Galois/Counter	B-Algorithm
Mode	I-Algorithm
(	O
GCM	O
)	O
for	O
encrypted	O
connections	O
to	O
enable	O
Opera	B-Application
12	O
to	O
connect	O
to	O
servers	O
that	O
do	O
n't	O
allow	O
other	O
encryption	O
modes	O
anymore	O
.	O
</s>
<s>
On	O
February	O
12	O
,	O
2013	O
,	O
Opera	B-Application
Software	O
announced	O
their	O
intention	O
to	O
transition	O
from	O
their	O
Presto	B-Application
layout	I-Application
engine	I-Application
to	O
WebKit	B-Language
,	O
building	O
upon	O
the	O
base	O
of	O
the	O
Chromium	B-Language
project	I-Language
.	O
</s>
<s>
Opera	B-Application
will	O
become	O
a	O
contributor	O
to	O
the	O
Chromium	B-Language
project	I-Language
.	O
</s>
<s>
After	O
the	O
announcement	O
of	O
transition	O
from	O
WebKit	B-Language
to	O
Blink	B-Language
by	O
Google	O
,	O
Opera	B-Application
confirmed	O
it	O
would	O
also	O
switch	O
to	O
Blink	B-Language
instead	O
of	O
WebKit	B-Language
.	O
</s>
<s>
The	O
version	O
identifier	O
13	O
was	O
skipped	O
,	O
thought	O
to	O
be	O
related	O
to	O
superstition	O
,	O
while	O
14	O
was	O
used	O
to	O
refer	O
to	O
a	O
WebKit-based	O
release	O
of	O
Opera	B-Application
for	O
Android	B-Application
.	O
</s>
<s>
On	O
May	O
28	O
,	O
2013	O
,	O
a	O
beta	O
version	O
of	O
Opera	B-Application
15	O
containing	O
Blink	B-Language
was	O
made	O
available	O
for	O
Windows	B-Application
and	O
Mac	O
computers	O
.	O
</s>
<s>
It	O
removed	O
many	O
distinctive	O
Opera	B-Application
features	O
,	O
including	O
some	O
ubiquitous	O
features	O
like	O
bookmarks	O
(	O
with	O
an	O
expanded	O
Speed	O
Dial	O
intended	O
to	O
replace	O
this	O
feature	O
)	O
.	O
</s>
<s>
The	O
features	O
confirmed	O
to	O
be	O
restored	O
in	O
the	O
near	O
future	O
were	O
synchronization	O
,	O
theme	O
support	O
,	O
geolocation	B-Language
,	O
and	O
a	O
"	O
feature	O
rich	O
"	O
tab	O
bar	O
.	O
</s>
<s>
The	O
previously-bundled	O
M2	B-Operating_System
email	O
client	O
was	O
released	O
as	O
a	O
standalone	O
application	O
,	O
Opera	B-Operating_System
Mail	I-Operating_System
.	O
</s>
<s>
Extensions	B-Application
for	O
the	O
previous	O
browser	O
versions	O
are	O
no	O
longer	O
supported	O
;	O
instead	O
developers	O
are	O
provided	O
with	O
facilities	O
for	O
converting	O
old	O
extensions	B-Application
to	O
Chrome	B-Application
extensions	B-Application
,	O
supported	O
in	O
Opera	B-Application
15	O
.	O
</s>
<s>
On	O
July	O
2	O
,	O
2013	O
,	O
the	O
final	O
version	O
of	O
Opera	B-Application
15.0	O
was	O
released	O
.	O
</s>
<s>
On	O
July	O
19	O
,	O
2013	O
,	O
Opera	B-Application
16	O
entered	O
the	O
Next	O
stream	O
.	O
</s>
<s>
This	O
build	O
included	O
the	O
return	O
of	O
geolocation	B-Language
support	O
and	O
automatic	O
form	O
filling	O
,	O
and	O
added	O
a	O
flags	O
page	O
allowing	O
experimental	O
features	O
to	O
be	O
enabled	O
.	O
</s>
<s>
On	O
August	O
27	O
,	O
2013	O
,	O
Opera	B-Application
16	O
was	O
released	O
.	O
</s>
<s>
On	O
August	O
8	B-Application
,	O
2013	O
,	O
Opera	B-Application
17	O
entered	O
the	O
Developer	O
stream	O
,	O
reintroducing	O
rocker	O
gestures	O
,	O
tab	O
pinning	O
,	O
start-up	O
options	O
,	O
and	O
search	O
engine	O
management	O
.	O
</s>
<s>
On	O
September	O
6	O
,	O
2013	O
,	O
Opera	B-Application
17	O
transitioned	O
from	O
the	O
Developer	O
stream	O
to	O
the	O
Next	O
stream	O
in	O
anticipation	O
of	O
its	O
impending	O
release	O
.	O
</s>
<s>
On	O
October	O
8	B-Application
,	O
2013	O
,	O
Opera	B-Application
17	O
was	O
released	O
.	O
</s>
<s>
On	O
September	O
11	O
,	O
2013	O
,	O
Opera	B-Application
18	O
entered	O
the	O
Developer	O
stream	O
,	O
with	O
initial	O
features	O
including	O
tab	O
management	O
,	O
theme	O
support	O
and	O
engine	O
updates	O
.	O
</s>
<s>
On	O
November	O
19	O
,	O
2013	O
,	O
Opera	B-Application
18	O
was	O
released	O
.	O
</s>
<s>
On	O
October	O
24	O
,	O
2013	O
,	O
Opera	B-Application
19	O
entered	O
the	O
Developer	O
stream	O
.	O
</s>
<s>
Opera	B-Application
20	O
was	O
released	O
on	O
March	O
4	O
,	O
2014	O
,	O
based	O
on	O
Chromium	B-Language
33	O
.	O
</s>
<s>
Opera	B-Application
21	O
was	O
released	O
on	O
May	O
6	O
,	O
2014	O
,	O
based	O
on	O
Chromium	B-Language
34	O
,	O
and	O
using	O
Chromium	B-Language
's	O
Aura	O
UI	O
framework	O
.	O
</s>
<s>
Opera	B-Application
22	O
was	O
released	O
on	O
June	O
3	O
,	O
2014	O
,	O
based	O
on	O
Chromium	B-Language
35	O
.	O
</s>
<s>
Opera	B-Application
23	O
was	O
released	O
on	O
July	O
22	O
,	O
2014	O
,	O
based	O
on	O
Chromium	B-Language
36	O
.	O
</s>
<s>
Opera	B-Application
24	O
was	O
released	O
on	O
September	O
2	O
,	O
2014	O
,	O
based	O
on	O
Chromium	B-Language
37	O
.	O
</s>
<s>
It	O
also	O
included	O
several	O
improvements	O
specific	O
to	O
Windows	B-Application
:	O
the	O
frame	O
of	O
private	O
windows	B-Application
was	O
darkened	O
and	O
support	O
for	O
high	O
DPI	O
displays	O
was	O
improved	O
again	O
.	O
</s>
<s>
Opera	B-Application
25	O
was	O
released	O
on	O
October	O
15	O
,	O
2014	O
,	O
based	O
on	O
Chromium	B-Language
38	O
.	O
</s>
<s>
This	O
was	O
the	O
last	O
release	O
to	O
support	O
Mac	B-Device
OS	I-Device
X	I-Device
10.6	I-Device
,	O
with	O
later	O
releases	O
requiring	O
Mac	B-Application
OS	I-Application
X	I-Application
10.7	I-Application
or	O
later	O
.	O
</s>
<s>
Opera	B-Application
26	O
was	O
released	O
on	O
December	O
3	O
,	O
2014	O
,	O
based	O
on	O
Chromium	B-Language
39	O
.	O
</s>
<s>
This	O
is	O
the	O
first	O
new	O
stable	O
version	O
on	O
Linux	B-Application
since	O
12.16	O
,	O
released	O
on	O
July	O
4	O
,	O
2013	O
.	O
</s>
<s>
This	O
release	O
also	O
transitioned	O
the	O
Mac	O
version	O
of	O
Opera	B-Application
to	O
the	O
64-bit	O
architecture	O
.	O
</s>
<s>
Opera	B-Application
27	O
was	O
released	O
on	O
January	O
27	O
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
40	O
.	O
</s>
<s>
Includes	O
additional	O
bug-fixes	O
for	O
the	O
PPAPI	O
plugin	B-Application
support	O
and	O
the	O
bookmark	O
manager	O
.	O
</s>
<s>
Opera	B-Application
28	O
was	O
released	O
on	O
March	O
10	B-Operating_System
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
41	O
.	O
</s>
<s>
Starting	O
with	O
this	O
version	O
,	O
bookmarks	O
can	O
be	O
synchronized	B-General_Concept
between	O
Opera	B-Application
on	O
the	O
desktop	O
,	O
Opera	B-Language
Mobile	I-Language
on	O
Android	B-Application
and	O
Opera	B-Protocol
Mini	I-Protocol
on	O
Android	B-Application
and	O
iOS	O
.	O
</s>
<s>
Opera	B-Application
29	O
was	O
released	O
on	O
April	O
28	O
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
42	O
.	O
</s>
<s>
Opera	B-Application
30	O
was	O
released	O
on	O
June	O
9	O
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
43	O
.	O
</s>
<s>
Opera	B-Application
31	O
was	O
released	O
on	O
August	O
4	O
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
44	O
.	O
</s>
<s>
Opera	B-Application
32	O
was	O
released	O
on	O
September	O
15	O
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
45	O
.	O
</s>
<s>
When	O
you	O
access	O
a	O
website	O
using	O
Silverlight	B-Application
,	O
it	O
gives	O
a	O
message	O
that	O
the	O
Microsoft	B-Application
Silverlight	I-Application
plugin	B-Application
will	O
soon	O
no	O
longer	O
be	O
supported	O
.	O
</s>
<s>
Opera	B-Application
33	O
was	O
released	O
on	O
October	O
27	O
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
46	O
.	O
</s>
<s>
Microsoft	B-Application
Silverlight	I-Application
and	O
NPAPI	B-Protocol
still	O
work	O
and	O
the	O
message	O
from	O
Opera	B-Application
32	O
is	O
no	O
longer	O
displayed	O
.	O
</s>
<s>
Opera	B-Application
34	O
was	O
released	O
on	O
December	O
8	B-Application
,	O
2015	O
,	O
based	O
on	O
Chromium	B-Language
47	O
.	O
</s>
<s>
Opera	B-Application
35	O
was	O
released	O
on	O
February	O
2	O
,	O
2016	O
,	O
based	O
on	O
Chromium	B-Language
48	O
.	O
</s>
<s>
Opera	B-Application
36	O
was	O
released	O
on	O
March	O
15	O
,	O
2016	O
,	O
and	O
was	O
based	O
on	O
Chromium	B-Language
49	O
.	O
</s>
<s>
It	O
is	O
the	O
last	O
version	O
to	O
support	O
Windows	B-Application
XP	I-Application
,	O
Windows	B-Application
Server	I-Application
2003	I-Application
,	O
Windows	B-Application
Vista	I-Application
,	O
and	O
Windows	B-Device
Server	I-Device
2008	I-Device
.	O
</s>
<s>
The	O
succeeding	O
versions	O
would	O
need	O
at	O
least	O
Windows	B-Device
7	I-Device
,	O
and	O
Windows	B-Device
Server	I-Device
2008	I-Device
R2	I-Device
.	O
</s>
<s>
Opera	B-Application
37	O
was	O
released	O
on	O
May	O
4	O
,	O
2016	O
,	O
based	O
on	O
Chromium	B-Language
50	O
.	O
</s>
<s>
It	O
was	O
the	O
last	O
version	O
that	O
would	O
run	O
under	O
Mac	B-Application
OS	I-Application
X	I-Application
10.7	I-Application
and	O
OS	B-Operating_System
X	I-Operating_System
10.8	I-Operating_System
.	O
</s>
<s>
The	O
succeeding	O
versions	O
would	O
need	O
at	O
least	O
OS	B-Operating_System
X	I-Operating_System
10.9	I-Operating_System
.	O
</s>
<s>
Opera	B-Application
38	O
was	O
released	O
on	O
June	O
8	B-Application
,	O
2016	O
,	O
based	O
on	O
Chromium	B-Language
51	O
.	O
</s>
<s>
Free	O
unlimited	O
VPN	O
service	O
from	O
Opera	B-Application
was	O
added	O
.	O
</s>
<s>
Opera	B-Application
39	O
was	O
released	O
on	O
August	O
2	O
,	O
2016	O
,	O
based	O
on	O
Chromium	B-Language
52	O
.	O
</s>
<s>
Opera	B-Application
40	O
was	O
released	O
on	O
September	O
20	O
,	O
2016	O
,	O
based	O
on	O
Chromium	B-Language
53	O
.	O
</s>
<s>
Opera	B-Application
41	O
was	O
released	O
on	O
October	O
25	O
,	O
2016	O
,	O
based	O
on	O
Chromium	B-Language
54	O
.	O
</s>
<s>
Opera	B-Application
42	O
was	O
released	O
on	O
December	O
13	O
,	O
2016	O
,	O
based	O
on	O
Chromium	B-Language
55	O
.	O
</s>
<s>
Opera	B-Application
43	O
was	O
released	O
on	O
February	O
7	B-Device
,	O
2017	O
,	O
based	O
on	O
Chromium	B-Language
56	O
.	O
</s>
<s>
Opera	B-Application
44	O
was	O
released	O
on	O
March	O
22	O
,	O
2017	O
,	O
based	O
on	O
Chromium	B-Language
57	O
.	O
</s>
<s>
Opera	B-Application
45	O
was	O
released	O
on	O
May	O
10	B-Operating_System
,	O
2017	O
,	O
based	O
on	O
Chromium	B-Language
58	O
,	O
and	O
comes	O
with	O
a	O
slightly	O
overhauled	O
user	B-Application
interface	I-Application
and	O
an	O
integrated	O
messenger	B-Protocol
sidebar	O
supporting	O
Facebook	B-Protocol
Messenger	I-Protocol
,	O
WhatsApp	B-Application
,	O
and	O
Telegram	B-Application
It	O
was	O
the	O
last	O
version	O
that	O
would	O
run	O
under	O
Linux	B-Application
32-bit	I-Application
,	O
with	O
later	O
versions	O
requiring	O
Linux	B-Application
64-bit	I-Application
.	O
</s>
<s>
Opera	B-Application
46	O
was	O
released	O
on	O
June	O
22	O
,	O
2017	O
,	O
based	O
on	O
Chromium	B-Language
59	O
.	O
</s>
<s>
Opera	B-Application
47	O
was	O
released	O
on	O
August	O
9	O
,	O
2017	O
,	O
based	O
on	O
Chromium	B-Language
60	O
.	O
</s>
<s>
Opera	B-Application
48	O
was	O
released	O
on	O
September	O
27	O
,	O
2017	O
,	O
based	O
on	O
Chromium	B-Language
61	O
.	O
</s>
<s>
Opera	B-Application
49	O
was	O
released	O
on	O
November	O
8	B-Application
,	O
2017	O
,	O
based	O
on	O
Chromium	B-Language
62	O
.	O
</s>
<s>
It	O
was	O
the	O
last	O
version	O
that	O
would	O
run	O
under	O
OS	B-Operating_System
X	I-Operating_System
10.9	I-Operating_System
.	O
</s>
<s>
The	O
succeeding	O
versions	O
would	O
need	O
at	O
least	O
OS	B-Device
X	I-Device
10.10	I-Device
.	O
</s>
<s>
Opera	B-Application
50	O
was	O
released	O
on	O
January	O
4	O
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
63	O
.	O
</s>
<s>
Opera	B-Application
51	O
was	O
released	O
on	O
February	O
7	B-Device
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
64	O
.	O
</s>
<s>
Opera	B-Application
52	O
was	O
released	O
on	O
March	O
22	O
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
65	O
.	O
</s>
<s>
Opera	B-Application
53	O
was	O
released	O
on	O
May	O
10	B-Operating_System
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
66	O
.	O
</s>
<s>
Opera	B-Application
54	O
was	O
released	O
on	O
June	O
28	O
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
67	O
.	O
</s>
<s>
Opera	B-Application
55	O
was	O
released	O
on	O
August	O
16	O
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
68	O
.	O
</s>
<s>
Opera	B-Application
56	O
was	O
released	O
on	O
September	O
25	O
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
69	O
.	O
</s>
<s>
Opera	B-Application
57	O
was	O
released	O
on	O
November	O
28	O
,	O
2018	O
,	O
based	O
on	O
Chromium	B-Language
70	O
.	O
</s>
<s>
Opera	B-Application
58	O
was	O
released	O
on	O
January	O
23	O
,	O
2019	O
,	O
based	O
on	O
Chromium	B-Language
71	O
.	O
</s>
<s>
Opera	B-Application
60	O
was	O
released	O
on	O
April	O
9	O
,	O
2019	O
,	O
based	O
on	O
Chromium	B-Language
73	O
.	O
</s>
<s>
Opera	B-Application
59	O
,	O
based	O
on	O
Chromium	B-Language
72	O
was	O
skipped	O
.	O
</s>
<s>
Opera	B-Application
62	O
was	O
released	O
on	O
June	O
27	O
,	O
2019	O
,	O
based	O
on	O
Chromium	B-Language
75	O
.	O
</s>
<s>
Opera	B-Application
61	O
,	O
based	O
on	O
Chromium	B-Language
74	O
was	O
skipped	O
.	O
</s>
<s>
Opera	B-Application
63	O
was	O
released	O
on	O
August	O
20	O
,	O
2019	O
,	O
based	O
on	O
Chromium	B-Language
76	O
.	O
</s>
<s>
It	O
was	O
the	O
last	O
version	O
that	O
would	O
run	O
under	O
OS	B-Device
X	I-Device
10.10	I-Device
,	O
with	O
later	O
versions	O
requiring	O
OS	B-Operating_System
X	I-Operating_System
10.11	I-Operating_System
or	O
later	O
.	O
</s>
<s>
Opera	B-Application
64	O
was	O
released	O
on	O
October	O
8	B-Application
,	O
2019	O
,	O
based	O
on	O
Chromium	B-Language
77	O
.	O
</s>
<s>
Opera	B-Application
65	O
was	O
released	O
on	O
November	O
14	O
,	O
2019	O
,	O
based	O
on	O
Chromium	B-Language
78	O
.	O
</s>
<s>
Opera	B-Application
66	O
was	O
released	O
on	O
January	O
8	B-Application
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
79	O
.	O
</s>
<s>
Opera	B-Application
67	O
was	O
released	O
on	O
February	O
25	O
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
80	O
.	O
</s>
<s>
Opera	B-Application
68	O
was	O
released	O
on	O
April	O
22	O
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
81	O
.	O
</s>
<s>
Opera	B-Application
69	O
was	O
released	O
on	O
June	O
24	O
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
83	O
.	O
</s>
<s>
Opera	B-Application
70	O
was	O
released	O
on	O
July	O
28	O
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
84	O
.	O
</s>
<s>
Opera	B-Application
71	O
was	O
released	O
on	O
September	O
15	O
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
85	O
.	O
</s>
<s>
Opera	B-Application
72	O
was	O
released	O
on	O
October	O
21	O
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
86	O
.	O
</s>
<s>
Opera	B-Application
73	O
was	O
released	O
on	O
December	O
9	O
,	O
2020	O
,	O
based	O
on	O
Chromium	B-Language
87	O
.	O
</s>
<s>
Opera	B-Application
74	O
was	O
released	O
on	O
February	O
2	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
88	O
.	O
</s>
<s>
Opera	B-Application
75	O
was	O
released	O
on	O
March	O
24	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
89	O
.	O
</s>
<s>
Opera	B-Application
76	O
was	O
released	O
on	O
April	O
28	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
90	O
.	O
</s>
<s>
Opera	B-Application
77	O
was	O
released	O
on	O
June	O
24	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
91	O
.	O
</s>
<s>
Opera	B-Application
78	O
was	O
released	O
on	O
August	O
3	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
92	O
.	O
</s>
<s>
Opera	B-Application
79	O
was	O
released	O
on	O
September	O
14	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
93	O
.	O
</s>
<s>
Opera	B-Application
80	O
was	O
released	O
on	O
October	O
5	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
94	O
.	O
</s>
<s>
Opera	B-Application
81	O
was	O
released	O
on	O
November	O
4	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
95	O
.	O
</s>
<s>
Opera	B-Application
82	O
was	O
released	O
on	O
December	O
2	O
,	O
2021	O
,	O
based	O
on	O
Chromium	B-Language
96	O
.	O
</s>
<s>
Opera	B-Application
83	O
was	O
released	O
on	O
January	O
19	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
97	O
.	O
</s>
<s>
Opera	B-Application
84	O
was	O
released	O
on	O
February	O
16	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
98	O
.	O
</s>
<s>
Opera	B-Application
85	O
was	O
released	O
on	O
March	O
23	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
99	O
.	O
</s>
<s>
Opera	B-Application
86	O
was	O
released	O
on	O
April	O
20	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
100	O
.	O
</s>
<s>
Opera	B-Application
87	O
was	O
released	O
on	O
May	O
17	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
101	O
.	O
</s>
<s>
Opera	B-Application
88	O
was	O
released	O
on	O
June	O
8	B-Application
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
102	O
.	O
</s>
<s>
Opera	B-Application
89	O
was	O
released	O
on	O
July	O
7	B-Device
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
103	O
.	O
</s>
<s>
It	O
was	O
last	O
version	O
that	O
would	O
run	O
under	O
OS	B-Operating_System
X	I-Operating_System
10.11	I-Operating_System
and	O
MacOS	B-Operating_System
10.12	I-Operating_System
,	O
with	O
later	O
versions	O
requiring	O
MacOS	B-Operating_System
10.13	I-Operating_System
or	O
later	O
.	O
</s>
<s>
Opera	B-Application
90	O
was	O
released	O
on	O
August	O
18	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
104	O
.	O
</s>
<s>
Opera	B-Application
91	O
was	O
released	O
on	O
September	O
14	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
105	O
.	O
</s>
<s>
Opera	B-Application
92	O
was	O
released	O
on	O
October	O
19	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
106	O
.	O
</s>
<s>
Opera	B-Application
93	O
was	O
released	O
on	O
November	O
17	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
107	O
.	O
</s>
<s>
Opera	B-Application
94	O
was	O
released	O
on	O
December	O
15	O
,	O
2022	O
,	O
based	O
on	O
Chromium	B-Language
108	O
.	O
</s>
<s>
Opera	B-Application
95	O
was	O
released	O
on	O
February	O
1	O
,	O
2023	O
,	O
based	O
on	O
Chromium	B-Language
109	O
.	O
</s>
<s>
It	O
is	O
the	O
last	O
version	O
to	O
support	O
Windows	B-Device
7	I-Device
,	O
Windows	B-Application
8	I-Application
,	O
Windows	B-Device
8.1	I-Device
,	O
Windows	B-Device
Server	I-Device
2008	I-Device
R2	I-Device
,	O
Windows	B-Device
Server	I-Device
2012	I-Device
and	O
Windows	B-Device
Server	I-Device
2012	I-Device
R2	O
.	O
</s>
<s>
The	O
succeeding	O
versions	O
would	O
need	O
at	O
least	O
Windows	B-Operating_System
10	I-Operating_System
,	O
and	O
Windows	B-Device
Server	I-Device
2016	I-Device
.	O
</s>
<s>
Opera	B-Application
96	O
was	O
released	O
on	O
February	O
22	O
,	O
2023	O
,	O
based	O
on	O
Chromium	B-Language
110	O
.	O
</s>
<s>
Windows	B-Operating_System
10	I-Operating_System
is	O
only	O
for	O
IA-32	O
and	O
x64	B-Device
,	O
not	O
for	O
ARM64	O
and	O
ARMv7	O
.	O
</s>
<s>
Only	O
x86-64	B-Device
builds	O
of	O
Opera	B-Application
for	O
Mac	O
are	O
available	O
at	O
this	O
time	O
.	O
</s>
<s>
Opera	B-Language
Mobile	I-Language
Classic	O
,	O
formerly	O
called	O
Opera	B-Language
Mobile	I-Language
,	O
is	O
an	O
edition	O
of	O
Opera	B-Application
designed	O
for	O
smartphones	B-Application
and	O
personal	B-Application
digital	I-Application
assistants	I-Application
(	O
PDAs	B-Application
)	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
Opera	B-Language
Mobile	I-Language
Classic	O
was	O
released	O
in	O
2000	B-Application
for	O
the	O
Psion	B-Application
Series	I-Application
7	I-Application
and	O
NetBook	B-Application
,	O
with	O
a	O
port	O
to	O
the	O
Windows	B-Operating_System
Mobile	I-Operating_System
platform	O
coming	O
in	O
2004	O
.	O
</s>
<s>
One	O
of	O
Opera	B-Language
Mobile	I-Language
Classic	O
's	O
major	O
features	O
is	O
the	O
ability	O
to	O
dynamically	O
reformat	O
web	O
pages	O
to	O
better	O
fit	O
the	O
handheld	O
's	O
display	O
using	O
small	B-Application
screen	I-Application
rendering	I-Application
technology	O
.	O
</s>
<s>
However	O
,	O
Opera	B-Language
Mobile	I-Language
's	O
user	B-Application
interface	I-Application
has	O
come	O
under	O
fire	O
for	O
being	O
difficult	O
to	O
use	O
or	O
customize	O
.	O
</s>
<s>
Opera	B-Language
Mobile	I-Language
Classic	O
was	O
replaced	O
by	O
Opera	B-Application
browser	I-Application
for	O
Android	B-Application
.	O
</s>
<s>
Internet	B-Protocol
Channel	I-Protocol
is	O
a	O
web	O
browser	O
for	O
Nintendo	B-Operating_System
's	I-Operating_System
Wii	I-Operating_System
gaming	O
console	O
made	O
by	O
Opera	B-Application
Software	O
and	O
Nintendo	O
.	O
</s>
<s>
Internet	B-Protocol
Channel	I-Protocol
was	O
free	O
to	O
download	O
from	O
its	O
release	O
on	O
12	O
April	O
2007	O
until	O
30	O
June	O
2007	O
.	O
</s>
<s>
After	O
that	O
date	O
,	O
Wii	B-Operating_System
users	O
had	O
to	O
pay	O
500	O
Wii	B-Application
Points	I-Application
to	O
download	O
it	O
.	O
</s>
<s>
However	O
,	O
in	O
late	O
August	O
/	O
early	O
September	O
of	O
the	O
year	O
2009	O
,	O
the	O
Internet	B-Protocol
Channel	I-Protocol
was	O
once	O
again	O
available	O
to	O
download	O
for	O
free	O
and	O
those	O
who	O
paid	O
for	O
the	O
service	O
had	O
their	O
Wii	B-Application
Points	I-Application
returned	O
in	O
the	O
form	O
of	O
a	O
free	O
NES	O
Virtual	O
Console	O
game	O
.	O
</s>
<s>
Scott	O
Hedrick	O
,	O
an	O
executive	O
of	O
the	O
Opera	B-Application
Software	O
company	O
,	O
explained	O
that	O
the	B-Operating_System
Wii	I-Operating_System
browser	O
was	O
designed	O
to	O
suit	O
a	O
"	O
living	O
room	O
environment	O
"	O
.	O
</s>
<s>
In	O
contrast	O
to	O
Opera	B-Application
's	O
appearance	O
on	O
computer	O
monitors	O
,	O
fonts	O
are	O
larger	O
and	O
the	O
interface	O
is	O
simplified	O
for	O
easier	O
use	O
.	O
</s>
<s>
Notwithstanding	O
the	O
changes	O
in	O
design	O
,	O
the	B-Operating_System
Wii	I-Operating_System
browser	O
supports	O
the	O
same	O
web	O
standards	O
as	O
the	O
desktop	O
version	O
of	O
Opera	B-Application
9	O
,	O
including	O
passing	O
the	O
Acid2	O
test	O
.	O
</s>
<s>
Nintendo	B-Application
DS	I-Application
Browser	I-Application
is	O
an	O
edition	O
of	O
Opera	B-Application
for	O
the	O
Nintendo	B-Device
DS	I-Device
handheld	O
gaming	O
system	O
.	O
</s>
<s>
The	O
Nintendo	B-Application
DS	I-Application
Browser	I-Application
was	O
released	O
in	O
Japan	O
on	O
24	O
July	O
2006	O
,	O
in	O
Europe	O
on	O
6	O
October	O
2006	O
,	O
and	O
in	O
North	O
America	O
on	O
4	O
June	O
2007	O
.	O
</s>
<s>
The	O
Nintendo	B-Application
DS	I-Application
Browser	I-Application
includes	O
the	O
same	O
small	B-Application
screen	I-Application
rendering	I-Application
and	O
page	O
zooming	O
technology	O
present	O
in	O
Opera	B-Language
Mobile	I-Language
.	O
</s>
<s>
It	O
also	O
includes	O
handwriting	B-Application
recognition	I-Application
software	O
and	O
an	O
on-screen	B-Device
keyboard	I-Device
to	O
enable	O
user	O
input	O
.	O
</s>
<s>
Additionally	O
,	O
Nintendo	O
partnered	O
with	O
Astaro	O
Internet	O
Security	O
to	O
provide	O
web	B-Protocol
filtering	I-Protocol
for	O
the	O
Nintendo	B-Application
DS	I-Application
Browser	I-Application
.	O
</s>
<s>
The	O
technology	O
is	O
simply	O
a	O
professionally	O
maintained	O
proxy	B-Application
server	I-Application
that	O
blocks	O
web	O
sites	O
related	O
to	O
pornography	O
,	O
discrimination	O
,	O
security	O
hacking	O
,	O
software	O
piracy	O
,	O
violence	O
,	O
gambling	O
,	O
illegal	O
drugs	O
,	O
alcohol	O
,	O
tobacco	O
,	O
dating	O
,	O
weapons	O
,	O
abortion	O
,	O
and	O
other	O
content	O
that	O
Nintendo	O
deems	O
objectionable	O
.	O
</s>
<s>
Users	O
can	O
configure	O
the	O
Nintendo	B-Application
DS	I-Application
Browser	I-Application
to	O
receive	O
web	O
pages	O
through	O
this	O
proxy	B-Application
server	I-Application
,	O
and	O
this	O
setting	O
can	O
be	O
password-protected	O
(	O
by	O
a	O
parent	O
,	O
for	O
example	O
)	O
to	O
prevent	O
circumvention	O
.	O
</s>
<s>
In	O
August	O
2007	O
,	O
the	O
Nintendo	B-Application
DS	I-Application
Browser	I-Application
was	O
quietly	O
discontinued	O
in	O
North	O
America	O
.	O
</s>
