<s>
Opera	B-Operating_System
Coast	I-Operating_System
is	O
a	O
discontinued	O
web	B-Application
browser	I-Application
developed	O
for	O
iOS	B-Application
devices	O
by	O
Opera	O
Software	O
.	O
</s>
<s>
The	O
browser	B-Application
was	O
not	O
based	O
on	O
any	O
former	O
product	O
of	O
Opera	O
and	O
was	O
written	O
from	O
scratch	O
.	O
</s>
<s>
It	O
was	O
also	O
designed	O
for	O
touch	O
while	O
traditional	O
browser	B-Application
buttons	O
and	O
components	O
such	O
as	O
tabs	O
,	O
history	B-Protocol
,	O
and	O
bookmarks	O
are	O
eliminated	O
and	O
replaced	O
by	O
gestures	B-General_Concept
.	O
</s>
<s>
Opera	B-Operating_System
Coast	I-Operating_System
was	O
first	O
released	O
on	O
September	O
9	O
,	O
2013	O
.	O
</s>
<s>
In	O
February	O
2016	O
,	O
Opera	O
announced	O
an	O
Android	B-Application
version	O
of	O
the	O
browser	B-Application
,	O
which	O
was	O
ultimately	O
never	O
released	O
.	O
</s>
<s>
An	O
embedded	O
security	O
mechanism	O
was	O
implemented	O
in	O
Opera	B-Operating_System
Coast	I-Operating_System
which	O
included	O
several	O
security	O
aspects	O
,	O
like	O
certificates	O
,	O
site	O
reputation	O
,	O
URLs	O
,	O
browsing	B-Protocol
history	I-Protocol
,	O
and	O
page	O
content	O
,	O
and	O
the	O
user	O
would	O
be	O
warned	O
if	O
any	O
risk	O
is	O
detected	O
.	O
</s>
<s>
Opera	B-Operating_System
Coast	I-Operating_System
was	O
designed	O
to	O
automatically	O
perform	O
synchronization	O
using	O
iCloud	B-Application
.	O
</s>
