<s>
iOS	B-Operating_System
8	I-Operating_System
is	O
the	O
eighth	B-Operating_System
major	I-Operating_System
release	I-Operating_System
of	O
the	O
iOS	B-Application
mobile	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
developed	O
by	O
Apple	O
Inc.	O
,	O
being	O
the	O
successor	O
to	O
iOS	B-Operating_System
7	I-Operating_System
.	O
</s>
<s>
It	O
was	O
succeeded	O
by	O
iOS	B-Operating_System
9	I-Operating_System
on	O
September	O
16	O
,	O
2015	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
incorporated	O
significant	O
changes	O
to	O
the	O
operating	O
system	O
.	O
</s>
<s>
It	O
introduced	O
a	O
programming	B-Application
interface	I-Application
for	O
communication	O
between	O
apps	O
,	O
and	O
"	O
Continuity	O
"	O
,	O
a	O
cross-platform	O
(	O
Mac	B-Device
,	O
iPhone	B-Operating_System
,	O
and	O
iPad	B-Operating_System
)	O
system	O
that	O
enables	O
communication	O
between	O
devices	O
in	O
different	O
product	O
categories	O
,	O
such	O
as	O
the	O
ability	O
to	O
answer	O
calls	O
and	O
reply	O
to	O
SMS	B-Device
on	O
the	O
Mac	B-Device
and	O
iPad	B-Operating_System
.	O
</s>
<s>
Other	O
changes	O
included	O
a	O
new	O
Spotlight	B-Application
Suggestions	I-Application
search	O
results	O
feature	O
that	O
provides	O
more	O
detailed	O
results	O
,	O
Family	O
Sharing	O
,	O
where	O
a	O
family	O
can	O
link	O
together	O
their	O
accounts	O
to	O
share	O
content	O
,	O
with	O
one	O
parent	O
as	O
the	O
administrator	O
with	O
permission	O
controls	O
,	O
an	O
updated	O
keyboard	O
with	O
QuickType	O
,	O
providing	O
contextual	O
predictive	O
word	O
suggestions	O
and	O
Extensibility	O
,	O
which	O
allows	O
for	O
easier	O
sharing	O
of	O
content	O
between	O
apps	O
.	O
</s>
<s>
Third-party	O
developers	O
got	O
additional	O
features	O
to	O
integrate	O
their	O
apps	O
deeper	O
into	O
the	O
operating	O
system	O
,	O
including	O
support	O
for	O
widgets	O
in	O
the	O
Notification	O
Center	O
,	O
and	O
the	O
ability	O
to	O
make	O
keyboards	O
that	O
users	O
can	O
replace	O
the	O
default	O
iOS	B-Application
keyboard	O
with	O
.	O
</s>
<s>
App	O
updates	O
in	O
the	O
release	O
included	O
the	O
new	O
Health	B-Application
app	O
,	O
which	O
can	O
aggregate	O
data	O
from	O
different	O
fitness	B-Application
apps	I-Application
,	O
as	O
well	O
as	O
enabling	O
a	O
Medical	O
ID	O
accessible	O
on	O
the	O
lock	O
screen	O
for	O
emergencies	O
,	O
support	O
for	O
iCloud	O
Photo	O
Library	O
in	O
the	O
Photos	B-Application
app	O
,	O
which	O
enables	O
photos	B-Application
to	O
be	O
synchronized	O
and	O
stored	O
in	O
the	O
cloud	O
,	O
and	O
iCloud	O
Drive	O
,	O
which	O
lets	O
users	O
store	O
files	O
in	O
the	O
cloud	O
and	O
browse	O
them	O
across	O
devices	O
.	O
</s>
<s>
In	O
iOS	B-Operating_System
8.4	I-Operating_System
,	O
Apple	O
updated	O
its	O
Music	O
app	O
with	O
a	O
streaming	O
service	O
called	O
Apple	B-Operating_System
Music	I-Operating_System
,	O
and	O
a	O
24-hour	O
radio	O
station	O
called	O
Apple	B-Operating_System
Music	I-Operating_System
1	O
.	O
</s>
<s>
Reception	O
of	O
iOS	B-Operating_System
8	I-Operating_System
was	O
positive	O
.	O
</s>
<s>
They	O
also	O
liked	O
the	O
QuickType	O
keyboard	O
word	O
suggestions	O
,	O
and	O
highlighted	O
Spotlight	B-Application
Suggestions	I-Application
for	O
making	O
the	O
iPhone	B-Operating_System
"	O
almost	O
a	O
portable	O
search	O
portal	O
for	O
everything.	O
”	O
However	O
,	O
reviewers	O
noted	O
that	O
the	O
full	O
potential	O
for	O
iOS	B-Operating_System
8	I-Operating_System
would	O
only	O
be	O
realized	O
once	O
third-party	O
developers	O
integrated	O
their	O
apps	O
to	O
support	O
new	O
features	O
,	O
particularly	O
widgets	O
in	O
the	O
Notification	O
Center	O
.	O
</s>
<s>
Roughly	O
a	O
week	O
after	O
release	O
,	O
iOS	B-Operating_System
8	I-Operating_System
had	O
reached	O
46%	O
of	O
iOS	B-Application
usage	O
share	O
.	O
</s>
<s>
This	O
situation	O
was	O
blamed	O
on	O
the	O
requirement	O
of	O
a	O
high	O
amount	O
of	O
free	O
storage	O
space	O
to	O
install	O
the	O
upgrade	O
,	O
especially	O
difficult	O
for	O
iPhones	B-Operating_System
sold	O
with	O
8	O
or	O
16	O
gigabytes	O
of	O
maximum	O
storage	O
space	O
.	O
</s>
<s>
The	O
following	O
December	O
,	O
iOS	B-Operating_System
8	I-Operating_System
had	O
reached	O
63%	O
usage	O
share	O
,	O
a	O
notable	O
16%	O
increase	O
from	O
the	O
October	O
measurement	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
was	O
introduced	O
at	O
the	O
company	O
's	O
Worldwide	O
Developers	O
Conference	O
on	O
June	O
2	O
,	O
2014	O
,	O
with	O
the	O
first	O
beta	O
made	O
available	O
to	O
conference	O
attendees	O
after	O
the	O
keynote	O
presentation	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
was	O
officially	O
released	O
on	O
September	O
17	O
,	O
2014	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
introduced	O
Continuity	O
,	O
a	O
cross-platform	O
(	O
Mac	B-Device
,	O
iPhone	B-Operating_System
,	O
and	O
iPad	B-Operating_System
)	O
system	O
that	O
enables	O
communication	O
between	O
devices	O
in	O
different	O
product	O
categories	O
.	O
</s>
<s>
Continuity	O
enables	O
phone	O
call	O
functionality	O
for	O
the	O
iPad	B-Operating_System
and	O
Mac	B-Device
,	O
in	O
which	O
calls	O
are	O
routed	O
through	O
the	O
iPhone	B-Operating_System
over	O
to	O
a	O
secondary	O
device	O
.	O
</s>
<s>
This	O
also	O
brings	O
SMS	B-Device
support	O
to	O
the	O
iPad	B-Operating_System
and	O
Mac	B-Device
,	O
an	O
extension	O
of	O
the	O
iMessage	O
feature	O
in	O
previous	O
versions	O
.	O
</s>
<s>
Continuity	O
adds	O
a	O
feature	O
called	O
"	O
Handoff	O
,	O
"	O
that	O
lets	O
users	O
start	O
a	O
task	O
on	O
one	O
device	O
and	O
continue	O
on	O
another	O
,	O
such	O
as	O
composing	O
an	O
e-mail	O
on	O
the	O
iPhone	B-Operating_System
and	O
then	O
continuing	O
it	O
on	O
the	O
iPad	B-Operating_System
before	O
sending	O
it	O
on	O
the	O
Mac	B-Device
.	O
</s>
<s>
In	O
order	O
to	O
support	O
Handoff	O
and	O
Continuity	O
,	O
Macs	O
needed	O
to	O
have	O
the	O
OS	B-Device
X	I-Device
Yosemite	I-Device
operating	O
system	O
,	O
which	O
was	O
released	O
in	O
October	O
2014	O
,	O
as	O
well	O
as	O
support	O
for	O
Bluetooth	B-General_Concept
low	I-General_Concept
energy	I-General_Concept
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
introduced	O
Spotlight	B-Application
Suggestions	I-Application
,	O
a	O
new	O
search	O
feature	O
that	O
integrates	O
with	O
many	O
websites	O
and	O
services	O
to	O
show	O
more	O
detailed	O
search	O
results	O
,	O
including	O
snippets	O
of	O
Wikipedia	O
articles	O
,	O
local	O
news	O
,	O
quick	O
access	O
to	O
apps	O
installed	O
on	O
the	O
device	O
,	O
iTunes	B-Operating_System
content	O
,	O
movie	O
showtimes	O
,	O
nearby	O
places	O
,	O
and	O
info	O
from	O
various	O
websites	O
.	O
</s>
<s>
Spotlight	B-Application
Suggestions	I-Application
are	O
available	O
on	O
the	O
iOS	B-Application
home	O
screen	O
as	O
well	O
as	O
in	O
the	O
Safari	B-Application
web	I-Application
browser	I-Application
search	O
bar	O
.	O
</s>
<s>
Examples	O
of	O
widgets	O
include	O
a	O
Weather	B-Application
app	O
showing	O
current	O
weather	B-Application
,	O
and	O
a	O
Calendar	O
app	O
showing	O
upcoming	O
events	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
includes	O
a	O
new	O
predictive	O
typing	O
feature	O
called	O
QuickType	O
,	O
which	O
displays	O
word	O
predictions	O
above	O
the	O
keyboard	O
as	O
the	O
user	O
types	O
.	O
</s>
<s>
Apple	O
now	O
allows	O
third-party	O
developers	O
to	O
make	O
keyboard	O
apps	O
that	O
users	O
can	O
replace	O
the	O
default	O
iOS	B-Application
keyboard	O
with	O
.	O
</s>
<s>
For	O
added	O
privacy	O
,	O
Apple	O
added	O
a	O
settings	O
toggle	O
called	O
"	O
Allow	O
Full	O
Access	O
"	O
,	O
that	O
optionally	O
enables	O
the	O
keyboard	O
to	O
act	O
outside	O
its	O
app	O
sandbox	O
,	O
such	O
as	O
synchronizing	O
keyboard	O
data	O
to	O
the	O
cloud	O
,	O
third-party	O
keyboards	O
are	O
not	O
allowed	O
to	O
use	O
Siri	B-Application
for	O
voice	O
dictation	O
,	O
and	O
some	O
secure	O
text	O
fields	O
do	O
not	O
allow	O
input	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
introduced	O
Family	O
Sharing	O
,	O
which	O
allows	O
up	O
to	O
6	O
people	O
to	O
register	O
unique	O
iTunes	B-Operating_System
accounts	O
that	O
are	O
then	O
linked	O
together	O
,	O
with	O
one	O
parent	O
becoming	O
the	O
administrator	O
,	O
controlling	O
the	O
overall	O
experience	O
.	O
</s>
<s>
Family	O
Sharing	O
also	O
extends	O
into	O
apps	O
,	O
a	O
Shared	O
album	O
is	O
automatically	O
generated	O
in	O
the	O
Photos	B-Application
app	O
of	O
each	O
family	O
member	O
,	O
allowing	O
everyone	O
to	O
add	O
photos	B-Application
,	O
videos	O
,	O
and	O
comments	O
to	O
a	O
shared	O
place	O
.	O
</s>
<s>
An	O
Ask	O
to	O
Buy	O
feature	O
allows	O
anyone	O
to	O
request	O
the	O
purchase	O
of	O
items	O
in	O
the	O
App	B-Application
Store	I-Application
,	O
iTunes	B-Operating_System
Store	O
,	O
and	O
iBooks	B-Application
Store	O
,	O
as	O
well	O
as	O
in-app	O
purchases	O
and	O
iCloud	O
storage	O
,	O
with	O
the	O
administrator	O
having	O
the	O
option	O
to	O
either	O
approve	O
or	O
deny	O
the	O
purchase	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
includes	O
an	O
additional	O
data	O
roaming	O
option	O
in	O
Settings	O
for	O
European	O
users	O
,	O
allowing	O
greater	O
control	O
over	O
data	O
usage	O
abroad	O
.	O
</s>
<s>
The	O
Siri	B-Application
personal	O
voice	O
assistant	O
now	O
has	O
integrated	O
Shazam	B-Application
support	O
.	O
</s>
<s>
Asking	O
Siri	B-Application
"	O
What	O
song	O
is	O
this	O
?	O
"	O
</s>
<s>
iPads	B-Operating_System
can	O
now	O
take	O
pictures	O
in	O
panoramic	O
mode	O
.	O
</s>
<s>
iOS	B-Operating_System
8	I-Operating_System
added	O
iCloud	O
Photo	O
Library	O
support	O
to	O
the	O
Photos	B-Application
app	O
,	O
enabling	O
photo	O
synchronization	O
between	O
different	O
Apple	O
devices	O
.	O
</s>
<s>
Photos	B-Application
and	O
videos	O
were	O
backed	O
up	O
in	O
full	O
resolution	O
and	O
in	O
their	O
original	O
formats	O
.	O
</s>
<s>
This	O
feature	O
almost	O
meant	O
that	O
lower-quality	O
versions	O
of	O
photos	B-Application
could	O
be	O
cached	B-General_Concept
on	O
the	O
device	O
rather	O
than	O
the	O
full-size	O
images	O
,	O
potentially	O
saving	O
significant	O
storage	O
space	O
on	O
models	O
with	O
limited	O
storage	O
availability	O
.	O
</s>
<s>
The	O
Photos	B-Application
app	O
received	O
better	O
search	O
,	O
with	O
different	O
search	O
categorization	O
options	O
,	O
including	O
Nearby	O
,	O
One	O
Year	O
Ago	O
,	O
Favorites	O
,	O
and	O
Home	O
,	O
based	O
on	O
geolocation	O
and	O
date	O
of	O
photo	O
capture	O
.	O
</s>
<s>
Additionally	O
,	O
the	O
Photos	B-Application
app	O
gained	O
more	O
precise	O
editing	O
controls	O
,	O
including	O
improved	O
rotation	O
;	O
one-touch	O
auto-enhancement	O
tools	O
;	O
and	O
deeper	O
color	O
adjustments	O
,	O
such	O
as	O
brightness	O
,	O
contrast	O
,	O
exposure	O
,	O
and	O
shadows	O
.	O
</s>
<s>
Apple	O
added	O
an	O
Extensibility	O
feature	O
in	O
iOS	B-Operating_System
8	I-Operating_System
,	O
that	O
allows	O
filters	O
and	O
effects	O
from	O
third-party	O
apps	O
to	O
be	O
accessed	O
directly	O
from	O
within	O
a	O
menu	O
in	O
the	O
standard	O
Photos	B-Application
app	O
,	O
rather	O
than	O
having	O
to	O
import	O
and	O
export	O
photos	B-Application
through	O
each	O
respective	O
app	O
to	O
apply	O
effects	O
.	O
</s>
<s>
In	O
the	O
initial	O
release	O
of	O
iOS	B-Operating_System
8	I-Operating_System
,	O
Apple	O
removed	O
a	O
"	O
Camera	O
Roll	O
"	O
feature	O
from	O
the	O
Photos	B-Application
app	O
.	O
</s>
<s>
Camera	O
Roll	O
was	O
an	O
overview	O
of	O
all	O
photos	B-Application
on	O
the	O
device	O
,	O
but	O
was	O
replaced	O
by	O
a	O
"	O
Recently	O
Added	O
"	O
photo	O
view	O
displaying	O
photos	B-Application
by	O
how	O
recently	O
the	O
user	O
captured	O
them	O
.	O
</s>
<s>
In	O
iOS	B-Operating_System
8	I-Operating_System
,	O
Messages	B-Protocol
gets	O
new	O
features	O
for	O
group	O
conversations	O
,	O
including	O
a	O
Do	O
Not	O
Disturb	O
mode	O
that	O
disables	O
conversation	O
notifications	O
,	O
as	O
well	O
as	O
the	O
ability	O
to	O
remove	O
participants	O
from	O
the	O
chat	O
.	O
</s>
<s>
For	O
interaction	O
between	O
two	O
Apple	O
users	O
,	O
the	O
Messages	B-Protocol
app	O
allows	O
users	O
to	O
send	O
short	O
picture	O
,	O
video	O
or	O
audio	O
clips	O
with	O
a	O
2-minute	O
expiration	O
time	O
.	O
</s>
<s>
In	O
the	O
Settings	O
app	O
,	O
the	O
user	O
has	O
the	O
option	O
to	O
have	O
messages	B-Protocol
be	O
automatically	O
deleted	O
after	O
a	O
certain	O
time	O
period	O
.	O
</s>
<s>
In	O
the	O
Safari	B-Application
web	I-Application
browser	I-Application
,	O
developers	O
can	O
now	O
add	O
support	O
for	O
Safari	B-Application
Password	O
Sharing	O
,	O
which	O
allows	O
them	O
to	O
share	O
credentials	O
between	O
sites	O
they	O
own	O
and	O
apps	O
they	O
own	O
,	O
potentially	O
cutting	O
down	O
on	O
the	O
number	O
of	O
times	O
users	O
need	O
to	O
type	O
in	O
credentials	O
for	O
their	O
apps	O
and	O
services	O
.	O
</s>
<s>
The	O
browser	O
also	O
adds	O
support	O
for	O
the	O
WebGL	B-Library
graphics	O
API	B-General_Concept
.	O
</s>
<s>
In	O
a	O
similar	O
style	O
as	O
a	O
file	B-Application
manager	I-Application
,	O
the	O
iCloud	O
Drive	O
is	O
a	O
file	B-Application
hosting	I-Application
service	I-Application
that	O
,	O
once	O
enabled	O
in	O
Settings	O
,	O
lets	O
users	O
save	O
any	O
kind	O
of	O
file	O
in	O
the	O
app	O
,	O
and	O
the	O
media	O
is	O
synchronized	O
to	O
other	O
iOS	B-Application
devices	O
,	O
as	O
well	O
as	O
the	O
Mac	B-Device
.	O
</s>
<s>
In	O
iOS	B-Operating_System
8	I-Operating_System
,	O
Apple	O
updated	O
App	B-Application
Store	I-Application
with	O
an	O
"	O
Explore	O
"	O
tab	O
providing	O
improved	O
app	O
discovery	O
,	O
trending	O
searches	O
in	O
the	O
"	O
Search	O
"	O
tab	O
,	O
and	O
the	O
ability	O
for	O
developers	O
to	O
bundle	O
multiple	O
apps	O
into	O
a	O
single	O
discounted	O
package	O
.	O
</s>
<s>
HealthKit	O
is	O
a	O
service	O
that	O
allows	O
developers	O
to	O
make	O
apps	O
that	O
integrate	O
with	O
the	O
new	O
Health	B-Application
app	O
.	O
</s>
<s>
The	O
Health	B-Application
app	O
primarily	O
aggregates	O
data	O
from	O
fitness	B-Application
apps	I-Application
installed	O
on	O
the	O
user	O
's	O
device	O
,	O
except	O
for	O
steps	O
and	O
flights	O
climbed	O
,	O
which	O
are	O
tracked	O
through	O
the	O
motion	O
processor	O
on	O
the	O
user	O
's	O
iPhone	B-Operating_System
.	O
</s>
<s>
HomeKit	B-Operating_System
serves	O
as	O
a	O
software	B-Architecture
framework	I-Architecture
that	O
lets	O
users	O
set	O
up	O
their	O
iPhone	B-Operating_System
to	O
configure	O
,	O
communicate	O
with	O
,	O
and	O
control	O
smart-home	B-Operating_System
appliances	I-Operating_System
.	O
</s>
<s>
By	O
designing	O
rooms	O
,	O
items	O
and	O
actions	O
in	O
the	O
HomeKit	B-Operating_System
service	O
,	O
users	O
can	O
enable	O
automatic	O
actions	O
in	O
the	O
house	O
through	O
a	O
simple	O
voice	O
dictation	O
to	O
Siri	B-Application
or	O
through	O
apps	O
.	O
</s>
<s>
Manufacturers	O
of	O
HomeKit-enabled	O
devices	O
are	O
required	O
to	O
purchase	O
a	O
license	O
,	O
and	O
all	O
HomeKit	B-Operating_System
products	O
are	O
required	O
to	O
have	O
an	O
encryption	O
co-processor	O
.	O
</s>
<s>
Equipment	O
manufactured	O
without	O
HomeKit-support	O
can	O
be	O
enabled	O
for	O
use	O
through	O
a	O
"	O
gateway	O
"	O
product	O
,	O
such	O
as	O
a	O
hub	O
that	O
connects	O
between	O
those	O
devices	O
and	O
the	O
HomeKit	B-Operating_System
service	O
.	O
</s>
<s>
The	O
Passbook	O
app	O
on	O
iOS	B-Operating_System
8	I-Operating_System
was	O
updated	O
to	O
include	O
Apple	B-Application
Pay	I-Application
,	O
a	O
digital	O
payment	O
service	O
,	O
available	O
on	O
iPhone	B-Operating_System
6	I-Operating_System
and	I-Operating_System
6	I-Operating_System
Plus	I-Operating_System
with	O
the	O
release	O
of	O
iOS	O
8.1	O
.	O
</s>
<s>
A	O
new	O
music	O
streaming	O
service	O
,	O
Apple	B-Operating_System
Music	I-Operating_System
,	O
was	O
introduced	O
in	O
the	O
iOS	B-Operating_System
8.4	I-Operating_System
update	O
.	O
</s>
<s>
With	O
the	O
release	O
of	O
the	O
music	O
service	O
,	O
the	O
standard	O
Music	O
app	O
on	O
iOS	B-Application
was	O
revamped	O
both	O
visually	O
and	O
functionally	O
to	O
include	O
Apple	B-Operating_System
Music	I-Operating_System
,	O
as	O
well	O
as	O
the	O
24-hour	O
live	O
radio	O
station	O
Beats	O
1	O
.	O
</s>
