<s>
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
(	O
version	O
10.9	O
)	O
is	O
the	O
10th	O
major	O
release	O
of	O
macOS	B-Application
,	O
Apple	O
Inc.	O
'	O
s	O
desktop	B-Device
and	O
server	B-Application
operating	B-General_Concept
system	I-General_Concept
for	O
Macintosh	B-Device
computers	O
.	O
</s>
<s>
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
was	O
announced	O
on	O
June	O
10	O
,	O
2013	O
,	O
at	O
WWDC	O
2013	O
,	O
and	O
was	O
released	O
on	O
October	O
22	O
,	O
2013	O
,	O
worldwide	O
.	O
</s>
<s>
The	O
update	O
emphasized	O
battery	O
life	O
,	O
Finder	B-Application
improvements	O
,	O
other	O
improvements	O
for	O
power	B-General_Concept
users	I-General_Concept
,	O
and	O
continued	O
iCloud	B-Application
integration	O
,	O
as	O
well	O
as	O
bringing	O
more	O
of	O
Apple	O
's	O
iOS	B-Application
apps	O
to	O
OS	O
X	O
.	O
Mavericks	O
,	O
which	O
was	O
named	O
after	O
the	O
surfing	O
location	O
in	O
Northern	O
California	O
,	O
was	O
the	O
first	O
in	O
the	O
series	O
of	O
OS	O
X	O
releases	O
not	O
only	O
for	O
being	O
named	O
for	O
places	O
in	O
Apple	O
's	O
home	O
state	O
since	O
earlier	O
releases	O
used	O
the	O
names	O
of	O
big	O
cats	O
,	O
but	O
also	O
for	O
being	O
the	O
first	O
one	O
to	O
be	O
a	O
free	O
upgrade	O
since	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
10.1	I-Operating_System
"	I-Operating_System
Puma	I-Operating_System
"	I-Operating_System
.	O
</s>
<s>
It	O
also	O
removed	O
some	O
of	O
the	O
skeuomorphic	O
designs	O
from	O
OS	B-Operating_System
X	I-Operating_System
Mountain	I-Operating_System
Lion	I-Operating_System
,	O
and	O
it	O
is	O
the	O
final	O
Mac	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
to	O
feature	O
the	O
Lucida	O
Grande	O
typeface	O
as	O
the	O
standard	O
system	O
font	O
since	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Public	I-Operating_System
Beta	I-Operating_System
in	O
2000	O
.	O
</s>
<s>
Apple	O
announced	O
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
on	O
June	O
10	O
,	O
2013	O
,	O
during	O
the	O
company	O
's	O
Apple	O
Worldwide	O
Developers	O
Conference	O
(	O
WWDC	O
)	O
keynote	O
(	O
which	O
also	O
introduced	O
iOS	B-Operating_System
7	I-Operating_System
,	O
a	O
revised	O
MacBook	B-Device
Air	I-Device
,	O
the	O
sixth-generation	O
AirPort	B-Device
Extreme	I-Device
,	O
the	O
fifth-generation	O
AirPort	B-Device
Time	I-Device
Capsule	I-Device
,	O
and	O
a	O
redesigned	O
Mac	B-Device
Pro	I-Device
)	O
.	O
</s>
<s>
During	O
a	O
keynote	O
on	O
October	O
22	O
,	O
2013	O
,	O
Apple	O
announced	O
that	O
the	O
official	O
release	O
of	O
10.9	O
on	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
would	O
be	O
available	O
immediately	O
,	O
and	O
that	O
unlike	O
previous	O
versions	O
of	O
OS	O
X	O
,	O
10.9	O
would	O
be	O
available	O
at	O
no	O
charge	O
to	O
all	O
users	O
running	O
Snow	B-Device
Leopard	I-Device
(	O
10.6.8	O
)	O
or	O
later	O
.	O
</s>
<s>
On	O
October	O
22	O
,	O
2013	O
,	O
Apple	O
offered	O
free	O
upgrades	O
for	O
life	O
on	O
OS	O
X	O
and	O
iWork	B-Application
.	O
</s>
<s>
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
can	O
run	O
on	O
any	O
Mac	O
that	O
can	O
run	O
OS	B-Operating_System
X	I-Operating_System
Mountain	I-Operating_System
Lion	I-Operating_System
;	O
as	O
with	O
Mountain	O
Lion	B-Application
,	O
2	O
GB	O
of	O
RAM	B-Architecture
,	O
8	O
GB	O
of	O
available	O
storage	O
,	O
and	O
Mac	O
OS	O
X	O
10.6.8	O
(	O
Snow	B-Device
Leopard	I-Device
)	O
or	O
later	O
are	O
required	O
.	O
</s>
<s>
Additionally	O
,	O
AirPlay	O
compatible	O
displays	O
such	O
as	O
the	O
Apple	B-Device
TV	I-Device
can	O
be	O
used	O
as	O
an	O
external	O
display	O
.	O
</s>
<s>
Mission	O
Control	O
has	O
been	O
updated	O
to	O
organize	O
and	O
switch	O
between	O
Desktop	B-Device
workspaces	O
independently	O
between	O
multiple	O
displays	O
.	O
</s>
<s>
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
introduced	O
App	O
Nap	O
,	O
which	O
sleeps	O
apps	O
that	O
are	O
not	O
currently	O
visible	O
.	O
</s>
<s>
Compressed	O
Memory	B-Architecture
is	O
a	O
virtual	B-General_Concept
memory	I-General_Concept
compression	I-General_Concept
system	O
which	O
automatically	O
compresses	B-General_Concept
data	I-General_Concept
from	O
inactive	O
apps	O
when	O
approaching	O
maximum	O
memory	B-Architecture
capacity	O
.	O
</s>
<s>
Timer	B-Operating_System
coalescing	I-Operating_System
is	O
a	O
feature	O
that	O
enhances	O
energy	O
efficiency	O
by	O
reducing	O
CPU	B-Device
usage	O
by	O
up	O
to	O
72	O
percent	O
.	O
</s>
<s>
This	O
allows	O
MacBooks	B-Operating_System
to	O
run	O
for	O
longer	O
periods	O
of	O
time	O
and	O
desktop	B-Device
Macs	O
to	O
run	O
cooler	O
.	O
</s>
<s>
Apple	O
now	O
supports	O
OpenGL	O
4.1	O
Core	O
Profile	O
and	O
OpenCL	B-Application
1.2	O
.	O
</s>
<s>
Server	B-Operating_System
Message	I-Operating_System
Block	I-Operating_System
version	O
2	O
(	O
SMB2	O
)	O
is	O
now	O
the	O
default	O
protocol	O
for	O
sharing	O
files	O
,	O
rather	O
than	O
AFP	B-Protocol
.	O
</s>
<s>
Some	O
skeuomorphs	O
,	O
such	O
as	O
the	O
leather	O
texture	O
in	O
Calendar	B-Operating_System
,	O
the	O
legal	O
pad	O
theme	O
of	O
Notes	O
,	O
and	O
the	O
book-like	O
appearance	O
of	O
Contacts	O
,	O
have	O
been	O
removed	O
from	O
the	O
UI	B-Application
.	O
</s>
<s>
iCloud	B-Application
Keychain	O
stores	O
a	O
user	O
's	O
usernames	O
,	O
passwords	O
and	O
Wi-Fi	O
passwords	O
to	O
allow	O
the	O
user	O
to	O
fill	O
this	O
information	O
into	O
forms	O
when	O
needed	O
.	O
</s>
<s>
The	O
system	O
has	O
native	O
LinkedIn	B-Application
sharing	O
integration	O
.	O
</s>
<s>
IPoTB	O
(	O
Internet	O
Protocol	O
over	O
Thunderbolt	B-Protocol
Bridge	O
)	O
Thunderbolt	B-Protocol
networking	O
is	O
supported	O
in	O
Mavericks	O
.	O
</s>
<s>
Notification	B-Operating_System
Center	I-Operating_System
allows	O
the	O
user	O
to	O
reply	O
to	O
notifications	O
instantly	O
,	O
allows	O
websites	O
to	O
send	O
notifications	O
,	O
and	O
,	O
when	O
the	O
user	O
wakes	O
up	O
a	O
Mac	O
that	O
was	O
in	O
a	O
sleep	O
state	O
,	O
displays	O
a	O
summary	O
of	O
missed	O
notifications	O
before	O
the	O
machine	O
is	O
unlocked	O
.	O
</s>
<s>
Some	O
system	O
alerts	O
,	O
such	O
as	O
low	O
battery	O
,	O
removal	O
of	O
drives	O
without	O
ejecting	O
,	O
and	O
a	O
failed	O
Time	B-Operating_System
Machine	I-Operating_System
backup	O
have	O
been	O
moved	O
to	O
Notification	B-Operating_System
Center	I-Operating_System
.	O
</s>
<s>
The	O
"	O
traffic	O
light	O
"	O
close	O
,	O
minimize	O
,	O
and	O
maximize	O
window	O
buttons	O
have	O
appeared	O
somewhat	O
brighter	O
than	O
Mac	B-Application
OS	I-Application
X	I-Application
Lion	I-Application
and	O
OS	B-Operating_System
X	I-Operating_System
Mountain	I-Operating_System
Lion	I-Operating_System
.	O
</s>
<s>
Finder	B-Application
gets	O
enhancements	O
such	O
as	O
tabs	O
,	O
full-screen	O
support	O
,	O
and	O
document	O
tags	B-General_Concept
.	O
</s>
<s>
The	O
new	O
iBooks	B-Application
application	O
allows	O
the	O
user	O
to	O
read	O
books	O
purchased	O
through	O
the	O
iBooks	B-Application
Store	O
.	O
</s>
<s>
The	O
app	O
also	O
allows	O
the	O
user	O
to	O
purchase	O
new	O
content	O
from	O
the	O
iBooks	B-Application
Store	O
,	O
and	O
a	O
night	O
mode	O
to	O
make	O
it	O
easier	O
to	O
read	O
in	O
dark	O
environments	O
.	O
</s>
<s>
The	O
new	O
Maps	B-Application
application	O
allows	O
the	O
user	O
the	O
same	O
functionality	O
as	O
in	O
iOS	B-Application
Maps	B-Application
.	O
</s>
<s>
The	O
Calendar	B-Operating_System
app	O
has	O
enhancements	O
such	O
as	O
being	O
able	O
to	O
add	O
Facebook	B-Application
events	O
,	O
and	O
an	O
estimate	O
for	O
the	O
travel	O
time	O
to	O
an	O
event	O
.	O
</s>
<s>
The	O
Safari	B-Application
browser	I-Application
has	O
a	O
significantly	O
enhanced	O
JavaScript	O
performance	O
which	O
Apple	O
claims	O
is	O
faster	O
than	O
Chrome	B-Application
and	O
Firefox	B-Application
.	O
</s>
<s>
Safari	B-Application
can	O
also	O
auto-generate	O
random	O
passwords	O
and	O
remember	O
them	O
through	O
iCloud	B-Application
Keychain	O
.	O
</s>
<s>
The	O
Open	B-Protocol
Transport	I-Protocol
API	O
has	O
been	O
removed	O
.	O
</s>
<s>
USB	O
syncing	O
of	O
calendar	B-Operating_System
,	O
contacts	O
and	O
other	O
information	O
to	O
iOS	B-Application
devices	O
has	O
been	O
removed	O
,	O
instead	O
requiring	O
the	O
use	O
of	O
iCloud	B-Application
.	O
</s>
<s>
QuickTime	B-Application
10	O
no	O
longer	O
supports	O
many	O
older	O
video	O
codecs	O
and	O
converts	O
them	O
to	O
the	O
ProRes	O
format	O
when	O
opened	O
.	O
</s>
<s>
Apple	O
also	O
removed	O
the	O
ability	O
to	O
sync	O
mobile	O
iCloud	B-Application
Notes	O
if	O
iOS	B-Application
devices	O
were	O
upgraded	O
from	O
iOS	B-Application
8	O
to	O
iOS	B-Application
9	O
,	O
effectively	O
forcing	O
all	O
Mavericks	O
users	O
to	O
update	O
or	O
upgrade	O
their	O
computers	O
.	O
</s>
<s>
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
has	O
received	O
mixed	O
reviews	O
.	O
</s>
<s>
One	O
complaint	O
is	O
that	O
Apple	O
removed	O
the	O
local	O
sync	O
services	O
,	O
which	O
forces	O
users	O
to	O
get	O
iCloud	B-Application
to	O
sync	O
iOS	B-Application
devices	O
with	O
the	O
desktop	B-General_Concept
OS	I-General_Concept
.	O
</s>
<s>
However	O
,	O
this	O
feature	O
has	O
since	O
returned	O
in	O
the	O
10.9.3	O
and	O
ITunes	B-Operating_System
11.2	O
updates	O
.	O
</s>
<s>
The	O
Verge	O
stated	O
that	O
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
was	O
“	O
a	O
gentle	O
evolution	O
of	O
the	O
Mac	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
”	O
.	O
</s>
