<s>
OS	B-Application
X	I-Application
Lion	I-Application
,	O
also	O
known	O
as	O
Mac	B-Application
OS	I-Application
X	I-Application
Lion	I-Application
,	O
(	O
version	O
10.7	B-Application
)	O
is	O
the	O
eighth	O
major	O
release	O
of	O
macOS	B-Application
,	O
Apple	O
's	O
desktop	O
and	O
server	O
operating	B-General_Concept
system	I-General_Concept
for	O
Mac	B-Device
computers	I-Device
.	O
</s>
<s>
A	O
preview	B-Language
of	O
OS	B-Application
X	I-Application
10.7	I-Application
Lion	I-Application
was	O
publicly	O
shown	O
at	O
the	O
"	O
Back	O
to	O
the	O
Mac	B-Device
"	O
Apple	O
Special	O
Event	O
on	O
October	O
20	O
,	O
2010	O
.	O
</s>
<s>
It	O
brought	O
many	O
developments	O
made	O
in	O
Apple	O
's	O
iOS	B-Operating_System
,	O
such	O
as	O
an	O
easily	O
navigable	O
display	O
of	O
installed	O
applications	O
,	O
to	O
the	O
Mac	B-Device
,	O
and	O
includes	O
support	O
for	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
,	O
as	O
introduced	O
in	O
Mac	B-Device
OS	I-Device
X	I-Device
10.6	I-Device
Snow	I-Device
Leopard	I-Device
version	O
10.6.6	O
.	O
</s>
<s>
On	O
February	O
24	O
,	O
2011	O
,	O
the	O
first	O
developer	O
's	O
preview	B-Language
of	O
Lion	B-Application
(	O
11A390	O
)	O
was	O
released	O
to	O
subscribers	O
to	O
the	O
Apple	B-Operating_System
Developer	I-Operating_System
program	I-Operating_System
.	O
</s>
<s>
Other	O
developer	O
previews	B-Language
were	O
subsequently	O
released	O
,	O
with	O
Lion	B-Application
Preview	B-Language
4	O
(	O
11A480b	O
)	O
being	O
released	O
at	O
WWDC	O
2011	O
.	O
</s>
<s>
Lion	B-Application
was	O
released	O
to	O
manufacturing	O
on	O
July	O
1	O
,	O
2011	O
,	O
followed	O
by	O
its	O
final	O
release	O
via	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
on	O
July	O
20	O
,	O
2011	O
.	O
</s>
<s>
Apple	O
reported	O
over	O
one	O
million	O
Lion	B-Application
sales	O
on	O
the	O
first	O
day	O
of	O
its	O
release	O
.	O
</s>
<s>
,	O
OS	B-Application
X	I-Application
Lion	I-Application
had	O
sold	O
over	O
six	O
million	O
copies	O
worldwide	O
.	O
</s>
<s>
Lion	B-Application
is	O
the	O
first	O
version	O
of	O
macOS	B-Application
that	O
did	O
not	O
support	O
32-bit	O
processors	O
and	O
is	O
also	O
the	O
final	O
release	O
of	O
OS	B-Operating_System
X	I-Operating_System
whose	O
development	O
was	O
overseen	O
by	O
Bertrand	O
Serlet	O
,	O
considered	O
to	O
be	O
the	O
"	O
founding	O
father	O
of	O
Mac	B-Device
OS	I-Device
X	I-Device
"	O
.	O
</s>
<s>
Although	O
originally	O
paid	O
,	O
Apple	O
later	O
allowed	O
free	O
downloads	O
of	O
the	O
OS	O
,	O
especially	O
for	O
customers	O
of	O
older	O
and	O
no	O
longer	O
officially	O
supported	O
Mac	B-Device
computers	I-Device
,	O
starting	O
on	O
June	O
30	O
,	O
2021	O
.	O
</s>
<s>
The	O
same	O
practice	O
was	O
applied	O
to	O
its	O
successor	O
,	O
OS	B-Operating_System
X	I-Operating_System
Mountain	I-Operating_System
Lion	I-Operating_System
.	O
</s>
<s>
On	O
June	O
6	O
,	O
2011	O
,	O
at	O
the	O
Apple	O
Worldwide	O
Developers	O
Conference	O
,	O
it	O
was	O
announced	O
that	O
the	O
official	O
release	O
for	O
Lion	B-Application
would	O
be	O
in	O
July	O
2011	O
.	O
</s>
<s>
Apple	O
did	O
not	O
initially	O
announce	O
any	O
physical	O
media	O
distribution	O
for	O
Lion	B-Application
,	O
such	O
as	O
a	O
set	O
of	O
CD-ROMs	B-Device
or	O
a	O
DVD-ROM	O
as	O
used	O
for	O
past	O
releases	O
.	O
</s>
<s>
Instead	O
,	O
the	O
operating	B-General_Concept
system	I-General_Concept
was	O
said	O
to	O
be	O
available	O
exclusively	O
as	O
a	O
download	O
from	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
for	O
US	O
$29.99	O
.	O
</s>
<s>
The	O
only	O
prior	O
version	O
of	O
OS	B-Operating_System
X	I-Operating_System
that	O
supports	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
is	O
Snow	B-Device
Leopard	I-Device
,	O
which	O
implied	O
that	O
any	O
machines	O
that	O
support	O
Lion	B-Application
currently	O
running	O
Tiger	B-Application
or	O
Leopard	B-Application
would	O
first	O
have	O
to	O
be	O
upgraded	O
to	O
Snow	B-Device
Leopard	I-Device
,	O
as	O
opposed	O
to	O
allowing	O
a	O
direct	O
upgrade	O
to	O
Lion	B-Application
.	O
</s>
<s>
Apple	O
later	O
announced	O
two	O
alternative	O
distribution	O
mechanisms	O
for	O
the	O
benefit	O
of	O
users	O
without	O
broadband	B-General_Concept
Internet	O
access	O
:	O
in-store	O
downloads	O
at	O
retail	O
Apple	O
Stores	O
,	O
and	O
a	O
USB	O
flash	O
drive	O
containing	O
the	O
OS	O
,	O
priced	O
at	O
US$69	O
,	O
available	O
through	O
the	O
online	O
Apple	O
Store	O
beginning	O
in	O
August	O
.	O
</s>
<s>
On	O
August	O
4	O
,	O
2011	O
,	O
Apple	O
started	O
to	O
take	O
orders	O
for	O
OS	B-Application
X	I-Application
Lion	I-Application
's	O
USB	O
installation	O
flash	O
drives	O
for	O
$69.99	O
.	O
</s>
<s>
The	O
Server	O
portion	O
of	O
Lion	B-Application
is	O
available	O
as	O
a	O
separate	O
download	O
from	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
for	O
US	O
$49.99	O
,	O
which	O
is	O
in	O
addition	O
to	O
the	O
purchase	O
price	O
of	O
Lion	B-Application
itself	O
.	O
</s>
<s>
In	O
July	O
2012	O
,	O
Lion	B-Application
was	O
removed	O
from	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
and	O
retail	O
Apple	O
stores	O
following	O
the	O
release	O
of	O
OS	B-Operating_System
X	I-Operating_System
Mountain	I-Operating_System
Lion	I-Operating_System
.	O
</s>
<s>
Following	O
the	O
removal	O
of	O
Lion	B-Application
from	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
,	O
customers	O
could	O
still	O
purchase	O
Lion	B-Application
by	O
phone	O
at	O
the	O
reduced	O
price	O
of	O
$20	O
.	O
</s>
<s>
In	O
October	O
2013	O
,	O
Lion	B-Application
was	O
returned	O
to	O
the	O
Apple	O
Store	O
website	O
concurrently	O
with	O
Mountain	O
Lion	B-Application
following	O
the	O
release	O
of	O
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
for	O
the	O
convenience	O
of	O
users	O
who	O
cannot	O
run	O
Mavericks	O
on	O
older	O
Mac	B-Device
models	O
.	O
</s>
<s>
The	O
first	O
developer	O
preview	B-Language
of	O
Lion	B-Application
added	O
TRIM	O
support	O
for	O
Solid-state	B-Device
drives	I-Device
(	O
SSD	B-Device
)	O
shipped	O
with	O
Macs	B-Device
,	O
which	O
is	O
also	O
included	O
in	O
the	O
latest	O
version	O
of	O
Snow	B-Device
Leopard	I-Device
(	O
10.6.8	O
)	O
shipping	O
with	O
MacBook	O
Pros	O
before	O
July	O
20	O
,	O
2011	O
.	O
</s>
<s>
Other	O
SSDs	B-Device
have	O
built-in	O
TRIM-like	O
optimization	O
,	O
while	O
yet	O
others	O
require	O
OS	O
patching	O
.	O
</s>
<s>
x86-64	B-Device
CPU	B-Device
(	O
64-bit	B-Device
Macs	B-Device
,	O
with	O
an	O
Intel	O
Core	O
2	O
Duo	O
,	O
Intel	B-Device
Core	I-Device
i5	I-Device
,	O
Intel	B-Device
Core	I-Device
i7	I-Device
,	O
or	O
Xeon	B-Device
processor	O
.	O
)	O
</s>
<s>
AirDrop	B-Operating_System
is	O
supported	O
on	O
the	O
following	O
Mac	B-Device
models	O
:	O
iMac	O
(	O
early	O
2009	O
or	O
newer	O
)	O
,	O
MacBook	O
(	O
late	O
2008	O
or	O
newer	O
)	O
,	O
MacBook	O
Air	O
(	O
late	O
2010	O
or	O
newer	O
)	O
,	O
MacBook	O
Pro	O
(	O
late	O
2008	O
or	O
newer	O
)	O
,	O
Mac	B-Device
Mini	O
(	O
mid	O
2010	O
or	O
newer	O
)	O
,	O
and	O
Mac	B-Device
Pro	O
(	O
early	O
2009	O
with	O
AirPort	O
Extreme	O
card	O
and	O
mid	O
2010	O
or	O
newer	O
)	O
.	O
</s>
<s>
Some	O
new	O
features	O
were	O
announced	O
at	O
the	O
"	O
Back	O
to	O
the	O
Mac	B-Device
"	O
keynote	O
in	O
October	O
2010	O
,	O
and	O
the	O
Apple	O
website	O
was	O
updated	O
in	O
February	O
2011	O
with	O
more	O
details	O
.	O
</s>
<s>
Other	O
features	O
were	O
announced	O
at	O
the	O
WWDC	O
2011	O
keynote	O
or	O
on	O
Apple	O
's	O
OS	B-Application
X	I-Application
Lion	I-Application
Web	O
site	O
after	O
the	O
keynote	O
.	O
</s>
<s>
Apple	O
states	O
that	O
there	O
are	O
over	O
250	O
new	O
or	O
changed	O
features	O
in	O
Lion	B-Application
,	O
including	O
:	O
</s>
<s>
Address	B-Operating_System
Book	I-Operating_System
uses	O
an	O
iPad-like	O
user	O
interface	O
.	O
</s>
<s>
It	O
also	O
includes	O
improved	O
Yahoo	B-Application
support	O
and	O
FaceTime	B-Operating_System
calling	O
.	O
</s>
<s>
AirDrop	B-Operating_System
–	O
Lion-to-Lion	O
direct	O
file	O
sharing	O
via	O
Wi-Fi	O
Direct	O
,	O
with	O
no	O
wireless	B-Device
access	I-Device
point	I-Device
required	O
.	O
</s>
<s>
Address	O
space	O
layout	O
randomization	O
–	O
Address	O
space	O
layout	O
randomization	O
(	O
ASLR	O
)	O
,	O
a	O
security	O
technique	O
that	O
puts	O
important	O
data	O
in	O
unpredictable	O
locations	O
,	O
making	O
it	O
harder	O
to	O
target	O
known	O
weaknesses	O
,	O
is	O
available	O
for	O
32-bit	O
applications	O
,	O
and	O
"	O
has	O
been	O
improved	O
for	O
all	O
applications	O
"	O
,	O
in	O
Lion	B-Application
.	O
</s>
<s>
Apple	B-Operating_System
Push	I-Operating_System
Notification	I-Operating_System
Service	I-Operating_System
–	O
Send	O
over-the-air	O
alerts	O
,	O
such	O
as	O
news	O
updates	O
or	O
social	O
networking	O
status	O
changes	O
,	O
using	O
Apple	O
's	O
Push	O
Notification	O
service	O
to	O
applications	O
that	O
support	O
APNS	B-Operating_System
.	O
</s>
<s>
APNS	B-Operating_System
allows	O
OS	B-Application
X	I-Application
Lion	I-Application
and	O
iOS	B-Operating_System
clients	O
to	O
receive	O
push	O
changes	O
to	O
items	O
such	O
as	O
mail	O
,	O
calendar	O
and	O
contacts	O
from	O
a	O
configured	O
OS	B-Application
X	I-Application
Lion	I-Application
Server	O
.	O
</s>
<s>
Auto-correction	O
behaves	O
much	O
like	O
on	O
iOS	B-Operating_System
devices	O
,	O
displaying	O
an	O
iOS-like	O
popup	O
box	O
.	O
</s>
<s>
Auto	B-General_Concept
Save	I-General_Concept
–	O
As	O
in	O
iOS	B-Operating_System
,	O
documents	O
in	O
applications	O
written	O
to	O
use	O
Auto	B-General_Concept
Save	I-General_Concept
are	O
saved	O
automatically	O
so	O
users	O
do	O
not	O
have	O
to	O
worry	O
about	O
manually	O
managing	O
their	O
documents	O
.	O
</s>
<s>
The	O
Auto	B-General_Concept
Save	I-General_Concept
feature	O
significantly	O
alters	O
traditional	O
workflow	O
patterns	O
and	O
is	O
a	O
controversial	O
addition	O
to	O
the	O
system	O
.	O
</s>
<s>
Emoji	B-Application
support	O
–	O
Apple	O
has	O
added	O
a	O
new	O
Emoji	B-Application
font	O
commonly	O
used	O
in	O
chat	O
to	O
express	O
ideograms	O
.	O
</s>
<s>
Exposé	O
in	O
the	O
Dock	O
,	O
a	O
way	O
of	O
activating	O
Exposé	O
for	O
a	O
single	O
application	O
from	O
the	O
Dock	O
,	O
a	O
feature	O
added	O
in	O
Mac	B-Device
OS	I-Device
X	I-Device
10.6	I-Device
,	O
is	O
altered	O
.	O
</s>
<s>
FaceTime	B-Operating_System
comes	O
bundled	O
with	O
Lion	B-Application
.	O
</s>
<s>
Finder	B-Application
improvements	O
–	O
Finder	B-Application
search	O
allows	O
multiple	O
search	O
criteria	O
to	O
be	O
specified	O
without	O
creating	O
a	O
smart	O
folder	O
,	O
Finder	B-Application
search	O
offers	O
suggestions	O
,	O
files	O
can	O
be	O
grouped	O
by	O
various	O
attributes	O
,	O
and	O
one	O
can	O
merge	O
files	O
under	O
two	O
folders	O
with	O
the	O
same	O
name	O
–	O
a	O
prompt	O
appears	O
asking	O
to	O
replace	O
or	O
keep	O
both	O
files	O
.	O
</s>
<s>
Font	B-Operating_System
Book	I-Operating_System
3	O
–	O
Font	B-Operating_System
Book	I-Operating_System
3	O
provides	O
more	O
flexible	O
displays	O
of	O
character	O
glyphs	O
supplied	O
by	O
a	O
particular	O
font	O
face	O
.	O
</s>
<s>
iCal	B-Language
has	O
an	O
updated	O
user	O
interface	O
,	O
an	O
annual	O
view	O
,	O
and	O
support	O
for	O
a	O
full-screen	O
view	O
.	O
</s>
<s>
iChat	B-Protocol
has	O
support	O
for	O
logging	O
into	O
Yahoo	B-Application
!	O
</s>
<s>
Users	O
can	O
audio	O
-	O
and	O
video-chat	O
with	O
other	O
iChat	B-Protocol
users	O
using	O
their	O
Yahoo	B-Application
!	O
</s>
<s>
Languages/Localization	O
–	O
Arabic	O
,	O
Czech	O
,	O
Turkish	O
and	O
Hungarian	O
are	O
added	O
as	O
full	O
system	O
languages	O
,	O
to	O
make	O
the	O
total	O
number	O
of	O
twenty-two	O
languages	O
available	O
in	O
Mac	B-Device
OS	I-Device
X	I-Device
.	O
</s>
<s>
Launchpad	O
–	O
An	O
application	O
launcher	O
that	O
displays	O
an	O
iOS-like	O
icon	O
grid	O
of	O
installed	O
applications	O
.	O
</s>
<s>
It	O
features	O
the	O
ability	O
to	O
make	O
multiple	O
pages	O
and	O
group	O
apps	O
into	O
folders	O
that	O
function	O
the	O
same	O
as	O
folders	O
in	O
iOS	B-Operating_System
.	O
</s>
<s>
Mac	B-Application
App	I-Application
Store	I-Application
–	O
An	O
application	O
store	O
built	O
in	O
the	O
image	O
of	O
the	O
iOS	B-Application
App	I-Application
Store	I-Application
.	O
</s>
<s>
Like	O
in	O
iOS	B-Operating_System
,	O
it	O
provides	O
ways	O
for	O
shoppers	O
to	O
discover	O
apps	O
,	O
one-click	O
installation	O
of	O
apps	O
,	O
and	O
one-click	O
updates	O
of	O
all	O
or	O
selected	O
installed	O
applications	O
.	O
</s>
<s>
Despite	O
being	O
announced	O
as	O
a	O
future	O
feature	O
of	O
Lion	B-Application
,	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
was	O
released	O
for	O
Mac	B-Device
OS	I-Device
X	I-Device
10.6	I-Device
Snow	I-Device
Leopard	I-Device
on	O
January	O
6	O
,	O
2011	O
,	O
as	O
it	O
was	O
bundled	O
with	O
the	O
Mac	O
OS	O
X	O
10.6.6	O
update	O
.	O
</s>
<s>
Mail	B-Operating_System
5	I-Operating_System
–	O
Uses	O
an	O
iPad-like	O
user	O
interface	O
,	O
has	O
a	O
fullscreen-optimized	O
view	O
,	O
uses	O
chronological	O
"	O
Conversations	O
"	O
to	O
organize	O
messages	O
,	O
and	O
supports	O
Exchange	O
2010	O
(	O
but	O
not	O
through	O
the	O
Exchange	B-Protocol
ActiveSync	I-Protocol
protocol	O
,	O
as	O
iOS	B-Operating_System
)	O
.	O
</s>
<s>
At	O
the	O
top	O
of	O
the	O
screen	O
it	O
gives	O
quick	O
access	O
to	O
the	O
Dashboard	B-Application
,	O
Spaces	O
,	O
and	O
running	O
full-screen	O
applications	O
.	O
</s>
<s>
Multi-touch	B-Application
gestures	O
–	O
Similar	O
to	O
iOS	B-Operating_System
,	O
additional	O
gestures	O
performed	O
using	O
a	O
multi-touch	B-Application
input	O
device	O
(	O
e.g.	O
</s>
<s>
Magic	O
Mouse	O
,	O
Magic	B-Device
Trackpad	I-Device
)	O
allow	O
the	O
user	O
to	O
scroll	O
,	O
swipe	O
to	O
different	O
pages	O
,	O
and	O
enter	O
Mission	O
Control	O
.	O
</s>
<s>
While	O
this	O
is	O
not	O
the	O
first	O
official	O
multi-touch	B-Application
support	O
for	O
Mac	B-Device
OS	I-Device
X	I-Device
,	O
it	O
has	O
been	O
expanded	O
;	O
other	O
frameworks	O
,	O
such	O
as	O
Lux	O
,	O
have	O
already	O
created	O
multi-touch	B-Application
support	O
.	O
</s>
<s>
Preview	B-Language
gains	O
several	O
features	O
,	O
including	O
full-screen	O
support	O
and	O
the	O
ability	O
to	O
sign	O
a	O
document	O
just	O
by	O
holding	O
a	O
signed	O
piece	O
of	O
paper	O
up	O
to	O
the	O
camera	O
.	O
</s>
<s>
Profile	O
Manager	O
provides	O
several	O
features	O
,	O
including	O
push	O
notification-based	O
management	O
of	O
OS	B-Application
X	I-Application
Lion	I-Application
and	O
above	O
.	O
</s>
<s>
QuickTime	B-Application
reincorporates	O
some	O
features	O
from	O
QuickTime	B-Application
Pro	O
.	O
</s>
<s>
Recovery	O
Partition	O
–	O
Apple	O
has	O
introduced	O
a	O
recovery	O
partition	O
that	O
includes	O
utilities	O
generally	O
found	O
on	O
the	O
OS	B-Operating_System
X	I-Operating_System
discs	O
.	O
</s>
<s>
If	O
the	O
partition	O
were	O
to	O
become	O
damaged	O
or	O
otherwise	O
not	O
available	O
,	O
such	O
as	O
with	O
a	O
new	O
drive	O
,	O
a	O
new	O
copy	O
of	O
OS	B-Application
X	I-Application
Lion	I-Application
can	O
be	O
installed	O
over	O
the	O
internet	O
.	O
</s>
<s>
Resume	O
–	O
Applications	O
resume	O
in	O
the	O
same	O
state	O
when	O
re-opened	O
as	O
already	O
seen	O
in	O
iOS	B-Operating_System
.	O
</s>
<s>
Safari	B-Application
–	O
With	O
full-screen	O
mode	O
and	O
the	O
new	O
WebKit2	O
layout	B-Protocol
engine	I-Protocol
.	O
</s>
<s>
System	O
Information	O
–	O
This	O
feature	O
is	O
a	O
re-design	O
of	O
System	B-Application
Profiler	I-Application
,	O
which	O
has	O
been	O
completely	O
altered	O
with	O
new	O
views	O
which	O
display	O
graphical	O
information	O
on	O
displays	O
,	O
storage	O
devices	O
,	O
memory	O
usage	O
along	O
with	O
other	O
hardware	O
information	O
.	O
</s>
<s>
Early	O
builds	O
of	O
Lion	B-Application
also	O
used	O
System	O
Information	O
as	O
a	O
replacement	O
for	O
"	O
About	O
This	O
Mac	B-Device
"	O
,	O
although	O
the	O
final	O
release	O
reinstated	O
the	O
version	O
of	O
this	O
dialog	O
box	O
found	O
in	O
Snow	B-Device
Leopard	I-Device
.	O
</s>
<s>
Terminal	B-Application
has	O
extra	O
features	O
,	O
including	O
full	O
screen	O
mode	O
.	O
</s>
<s>
TextEdit	B-Application
gains	O
a	O
new	O
graphical	O
toolbar	O
with	O
font	O
selection	O
and	O
text	O
highlighting	O
.	O
</s>
<s>
The	O
new	O
TextEdit	B-Application
also	O
supports	O
Apple	O
's	O
new	O
automatic	O
file	O
saving	O
and	O
versions	O
technologies	O
.	O
</s>
<s>
Vertical	O
text	O
–	O
Lion	B-Application
supports	O
vertical	O
layouts	O
for	O
East	O
Asian	O
languages	O
.	O
</s>
<s>
WebDAV	B-Protocol
File	O
Sharing	O
–	O
Lion	B-Application
Server	O
delivers	O
wireless	O
file	O
sharing	O
for	O
clients	O
that	O
support	O
WebDAV	B-Protocol
.	O
</s>
<s>
Enabling	O
WebDAV	B-Protocol
in	O
Lion	B-Application
Server	O
gives	O
iOS	B-Operating_System
users	O
the	O
ability	O
to	O
access	O
,	O
copy	O
,	O
and	O
share	O
documents	O
on	O
the	O
server	O
from	O
applications	O
such	O
as	O
Keynote	O
,	O
Numbers	O
,	O
and	O
Pages	O
.	O
</s>
<s>
Profile	O
Manager	O
–	O
Profile	O
Manager	O
delivers	O
simple	O
,	O
profile-based	O
setup	O
and	O
management	O
for	O
OS	B-Application
X	I-Application
Lion	I-Application
,	O
iPhone	O
,	O
iPad	O
,	O
and	O
iPod	O
touch	O
devices	O
.	O
</s>
<s>
It	O
also	O
integrates	O
with	O
existing	O
directory	O
services	O
and	O
delivers	O
automatic	O
over-the-air	O
profile	O
updates	O
using	O
the	O
Apple	B-Operating_System
Push	I-Operating_System
Notification	I-Operating_System
service	I-Operating_System
.	O
</s>
<s>
Redesigned	O
Aqua	B-Application
user	I-Application
interface	I-Application
elements	O
,	O
including	O
buttons	O
and	O
progress	O
bars	O
.	O
</s>
<s>
Flexible	O
window	O
resizing	O
from	O
any	O
corner	O
or	O
edge	O
of	O
the	O
window	O
,	O
similar	O
to	O
window	O
resizing	O
in	O
Microsoft	B-Application
Windows	I-Application
and	O
many	O
window	B-Application
managers	I-Application
for	I-Application
X11	I-Application
.	O
</s>
<s>
Also	O
,	O
like	O
in	O
iOS	B-Operating_System
,	O
scrolling	O
"	O
bounces	O
"	O
when	O
the	O
scroll	O
bar	O
hits	O
the	O
top	O
or	O
bottom	O
of	O
the	O
window	O
.	O
</s>
<s>
New	O
windows	O
fly	O
to	O
the	O
front	O
(	O
like	O
opening	O
an	O
app	O
in	O
iOS	B-Operating_System
)	O
.	O
</s>
<s>
The	O
dashboard	B-Application
is	O
its	O
own	O
space	O
in	O
Mission	O
Control	O
,	O
rather	O
than	O
in	O
previous	O
versions	O
of	O
OS	B-Operating_System
X	I-Operating_System
where	O
the	O
widgets	O
simply	O
flew	O
in	O
and	O
the	O
background	O
dimmed	O
.	O
</s>
<s>
Users	O
have	O
the	O
option	O
to	O
return	O
to	O
the	O
old	O
dashboard	B-Application
configuration	O
in	O
System	O
Preferences	O
.	O
</s>
<s>
Tabs	O
,	O
when	O
selected	O
,	O
have	O
a	O
recessed	O
and	O
darkened	O
appearance	O
as	O
opposed	O
to	O
previous	O
versions	O
where	O
selected	O
tabs	O
were	O
highlighted	O
in	O
aqua	B-Application
blue	O
.	O
</s>
<s>
Save	O
As	O
–	O
replaced	O
by	O
Duplicate	O
and	O
Revert	O
functions	O
due	O
to	O
the	O
introduction	O
of	O
Auto	B-General_Concept
Save	I-General_Concept
and	O
Versions	O
(	O
only	O
applies	O
to	O
applications	O
modified	O
to	O
support	O
Auto	B-General_Concept
Save	I-General_Concept
,	O
such	O
as	O
TextEdit	B-Application
;	O
applications	O
not	O
modified	O
to	O
support	O
Auto	B-General_Concept
Save	I-General_Concept
,	O
such	O
as	O
Microsoft	B-Application
Word	I-Application
,	O
retain	O
this	O
functionality	O
)	O
.	O
</s>
<s>
Front	B-Operating_System
Row	I-Operating_System
,	O
a	O
media	O
center	O
application	O
.	O
</s>
<s>
The	O
application	O
has	O
been	O
copied	O
into	O
Lion	B-Application
by	O
third-party	O
users	O
,	O
however	O
its	O
incompatibility	O
with	O
iTunes	O
10.4	O
renders	O
some	O
features	O
useless	O
.	O
</s>
<s>
Rosetta	B-Operating_System
,	O
software	O
that	O
makes	O
possible	O
the	O
execution	O
of	O
PowerPC	B-Architecture
software	O
on	O
x86	B-Operating_System
hardware	O
,	O
is	O
no	O
longer	O
available	O
.	O
</s>
<s>
This	O
disables	O
some	O
programs	O
that	O
ran	O
on	O
previous	O
versions	O
of	O
Mac	B-Device
OS	I-Device
X	I-Device
.	O
</s>
<s>
Programs	O
requiring	O
Rosetta	B-Operating_System
to	O
operate	O
are	O
not	O
allowed	O
to	O
be	O
distributed	O
via	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
.	O
</s>
<s>
Adobe	B-Operating_System
Flash	I-Operating_System
Player	I-Operating_System
and	O
Apple	O
's	O
Java	O
Runtime	O
Environment	O
(	O
JRE	O
)	O
are	O
not	O
included	O
in	O
new	O
installations	O
of	O
Lion	B-Application
,	O
but	O
both	O
can	O
still	O
be	O
downloaded	O
and	O
installed	O
manually	O
.	O
</s>
<s>
Apple	O
is	O
no	O
longer	O
actively	O
maintaining	O
its	O
JRE	O
,	O
but	O
Software	O
Update	O
offers	O
to	O
download	O
Snow	B-Device
Leopard	I-Device
's	O
JRE	O
when	O
a	O
user	O
tries	O
to	O
run	O
a	O
Java	O
program	O
and	O
the	O
JRE	O
is	O
not	O
installed	O
.	O
</s>
<s>
Programs	O
using	O
Java	O
are	O
not	O
allowed	O
to	O
be	O
distributed	O
via	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
.	O
</s>
<s>
iSync	O
,	O
software	O
used	O
for	O
syncing	O
contacts	O
and	O
calendars	O
to	O
third-party	O
mobile	O
phones	O
,	O
is	O
no	O
longer	O
included	O
;	O
however	O
,	O
iSync	O
v3.1.2	O
from	O
Snow	B-Device
Leopard	I-Device
continues	O
to	O
work	O
.	O
</s>
<s>
Remote	O
Install	O
Mac	B-Device
OS	I-Device
X	I-Device
,	O
software	O
that	O
allows	O
OS	B-Operating_System
X	I-Operating_System
to	O
be	O
installed	O
using	O
the	O
Remote	O
Disk	O
feature	O
.	O
</s>
<s>
Using	O
Target	B-Device
Disk	I-Device
Mode	I-Device
,	O
users	O
can	O
circumvent	O
this	O
omission	O
.	O
</s>
<s>
Apple	B-Device
USB	I-Device
Modem	I-Device
is	O
not	O
compatible	O
with	O
Lion	B-Application
.	O
</s>
<s>
QuickTime	B-Operating_System
Streaming	I-Operating_System
Server	I-Operating_System
,	O
software	O
used	O
to	O
deliver	O
video	O
and	O
audio	O
on	O
request	O
to	O
users	O
over	O
a	O
computer	O
network	O
,	O
including	O
the	O
Internet	O
.	O
</s>
<s>
Reception	O
for	O
OS	B-Application
X	I-Application
Lion	I-Application
has	O
been	O
mixed	O
;	O
complaints	O
include	O
a	O
substantial	O
backlash	O
by	O
"	O
Pro	O
"	O
users	O
with	O
workflows	O
affected	O
by	O
the	O
Autosave/Revert	O
workflow	O
.	O
</s>
<s>
Other	O
highly	O
criticized	O
decisions	O
include	O
the	O
change	O
to	O
"	O
natural	O
scrolling	O
"	O
,	O
hiding	O
of	O
the	O
scroll	O
bar	O
,	O
the	O
omission	O
of	O
the	O
iSync	O
program	O
necessary	O
to	O
synchronize	O
a	O
Mac	B-Device
with	O
non-Apple	O
mobile	O
devices	O
,	O
as	O
well	O
as	O
abandoned	O
functionality	O
in	O
Exposé	O
and	O
Spaces	O
.	O
</s>
<s>
However	O
,	O
in	O
an	O
extensive	O
review	O
of	O
the	O
operating	B-General_Concept
system	I-General_Concept
,	O
Ars	O
Technica	O
recommended	O
Lion	B-Application
.	O
</s>
<s>
They	O
noted	O
that	O
it	O
feels	O
like	O
it	O
is	O
the	O
start	O
of	O
a	O
new	O
line	O
of	O
operating	B-General_Concept
systems	I-General_Concept
that	O
will	O
continue	O
to	O
be	O
influenced	O
by	O
Apple	O
's	O
iOS	B-Operating_System
platform	O
.	O
</s>
<s>
The	O
review	O
also	O
compared	O
the	O
introduction	O
of	O
Lion	B-Application
,	O
along	O
with	O
its	O
new	O
conventions	O
that	O
change	O
traditional	O
ways	O
of	O
computing	O
,	O
with	O
the	O
original	O
Mac	B-Device
OS	I-Device
X	I-Device
and	O
when	O
it	O
replaced	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
.	O
</s>
<s>
Macworld	O
called	O
Lion	B-Application
a	O
"	O
radical	O
revision	O
"	O
,	O
praising	O
the	O
changes	O
made	O
to	O
the	O
operating	B-General_Concept
system	I-General_Concept
to	O
be	O
more	O
user	O
friendly	O
to	O
new	O
Mac	B-Device
users	O
who	O
are	O
familiar	O
with	O
the	O
iOS	B-Operating_System
interface	O
,	O
while	O
criticizing	O
the	O
limited	O
utility	O
of	O
the	O
interface	O
.	O
</s>
<s>
Ultimately	O
,	O
the	O
magazine	O
considered	O
Lion	B-Application
an	O
operating	B-General_Concept
system	I-General_Concept
worth	O
getting	O
,	O
giving	O
it	O
4.5	O
out	O
of	O
5	O
stars	O
.	O
</s>
<s>
guardian.co.uk	O
called	O
Lion	B-Application
a	O
substantial	O
improvement	O
from	O
its	O
predecessors	O
and	O
considered	O
it	O
a	O
"	O
steal	O
"	O
given	O
its	O
price	O
.	O
</s>
<s>
Ted	O
Landau	O
of	O
MacObserver	O
also	O
had	O
serious	O
criticism	O
of	O
Lion	B-Application
,	O
reversing	O
his	O
earlier	O
praise	O
of	O
Autosave	B-General_Concept
and	O
writing	O
,	O
"	O
Auto	B-General_Concept
Save	I-General_Concept
takes	O
irritatingly	O
long	O
when	O
working	O
with	O
large	O
documents	O
.	O
</s>
<s>
The	O
consensus	O
is	O
that	O
none	O
of	O
this	O
would	O
matter	O
much	O
—	O
if	O
you	O
could	O
disable	O
Auto	B-General_Concept
Save	I-General_Concept
.	O
</s>
<s>
But	O
Lion	B-Application
offers	O
no	O
way	O
to	O
turn	O
Auto	B-General_Concept
Save	I-General_Concept
off	O
.	O
</s>
<s>
Due	O
to	O
Lion	B-Application
's	O
enhanced	O
security	O
features	O
,	O
including	O
application	O
sandboxing	O
,	O
Dino	O
Dai	O
Zovi	O
,	O
principal	O
of	O
security	O
consultancy	O
Trail	O
of	O
Bits	O
and	O
the	O
coauthor	O
(	O
with	O
Charles	O
Miller	O
)	O
of	O
The	O
Mac	B-Device
Hacker	O
's	O
Handbook	O
,	O
characterized	O
Lion	B-Application
's	O
security	O
as	O
"	O
a	O
significant	O
improvement	O
,	O
and	O
the	O
best	O
way	O
that	O
I	O
've	O
described	O
the	O
level	O
of	O
security	O
in	O
Lion	B-Application
is	O
that	O
it	O
's	O
Windows	O
7	O
,	O
plus	O
,	O
plus	O
.	O
</s>
<s>
I	O
generally	O
tell	O
Mac	B-Device
users	O
that	O
if	O
they	O
care	O
about	O
security	O
,	O
they	O
should	O
upgrade	O
to	O
Lion	B-Application
sooner	O
rather	O
than	O
later	O
,	O
and	O
the	O
same	O
goes	O
for	O
Windows	O
users	O
,	O
too.	O
"	O
</s>
<s>
Applications	O
depending	O
on	O
Rosetta	B-Operating_System
,	O
such	O
as	O
Office	B-Operating_System
for	I-Operating_System
Mac	I-Operating_System
2004	I-Operating_System
,	O
AppleWorks	B-Device
,	O
and	O
early	O
versions	O
of	O
Quicken	B-Application
for	I-Application
Mac	I-Application
2007	I-Application
,	O
are	O
no	O
longer	O
supported	O
.	O
</s>
<s>
This	O
affects	O
applications	O
listed	O
as	O
Classic	O
or	O
PowerPC	B-Architecture
in	O
System	B-Application
Profiler	I-Application
.	O
</s>
<s>
Unix	B-Application
package	O
managers	O
for	O
Mac	B-Device
OS	I-Device
X	I-Device
such	O
as	O
Fink	B-Application
and	O
MacPorts	B-Application
require	O
reinstalling	O
and	O
then	O
running	O
Xcode	B-Operating_System
.	O
</s>
