<s>
TweetDeck	B-Operating_System
is	O
a	O
social	O
media	O
dashboard	O
application	O
for	O
management	O
of	O
Twitter	B-Application
accounts	I-Application
.	O
</s>
<s>
Originally	O
an	O
independent	O
app	O
,	O
TweetDeck	B-Operating_System
was	O
subsequently	O
acquired	O
by	O
Twitter	B-Application
Inc	O
.	O
and	O
integrated	O
into	O
Twitter	B-Application
's	O
interface	O
.	O
</s>
<s>
It	O
has	O
long	O
ranked	O
as	O
one	O
of	O
the	O
most	O
popular	O
Twitter	B-Application
clients	O
by	O
percentage	O
of	O
tweets	O
posted	O
,	O
alongside	O
the	O
official	O
Twitter	B-Application
web	O
client	O
and	O
the	O
official	O
apps	O
for	O
iPhone	B-Device
and	O
Android	B-Application
.	O
</s>
<s>
Like	O
other	O
Twitter	B-Application
applications	O
,	O
it	O
interfaces	O
with	O
the	O
Twitter	B-Application
API	B-General_Concept
to	O
allow	O
users	O
to	O
send	O
and	O
receive	O
tweets	O
and	O
view	O
profiles	O
.	O
</s>
<s>
It	O
can	O
be	O
used	O
as	O
a	O
web	B-Application
app	I-Application
.	O
</s>
<s>
Until	O
2015	O
it	O
could	O
also	O
be	O
used	O
as	O
a	O
Chrome	B-Operating_System
app	I-Operating_System
and	O
until	O
2022	O
it	O
could	O
also	O
be	O
used	O
as	O
a	O
MacOS	B-Application
app	O
.	O
</s>
<s>
Users	O
are	O
now	O
redirected	O
to	O
the	O
web	B-Application
app	I-Application
.	O
</s>
<s>
TweetDeck	B-Operating_System
consists	O
of	O
a	O
series	O
of	O
customisable	O
columns	O
,	O
which	O
can	O
be	O
set	O
up	O
to	O
display	O
the	O
user	O
's	O
Twitter	B-Application
timeline	O
,	O
mentions	O
,	O
direct	O
messages	O
,	O
lists	O
,	O
trends	O
,	O
favorites	O
,	O
search	O
results	O
,	O
hashtags	O
,	O
or	O
all	O
tweets	O
by	O
or	O
to	O
a	O
single	O
user	O
.	O
</s>
<s>
It	O
is	O
similar	O
to	O
Twitter	B-Application
's	O
"	O
Dashboard	O
App	O
"	O
that	O
was	O
discontinued	O
in	O
2016	O
.	O
</s>
<s>
The	O
client	O
uses	O
Twitter	B-Application
's	O
own	O
automatic	O
and	O
invisible	O
URL	O
shortening	O
whereby	O
a	O
link	O
of	O
any	O
length	O
will	O
only	O
use	O
23	O
characters	O
of	O
a	O
Tweet	O
's	O
280-character	O
limit	O
.	O
</s>
<s>
For	O
added	O
account	O
security	O
,	O
users	O
signing	O
in	O
with	O
their	O
Twitter	B-Application
username	O
and	O
password	O
can	O
use	O
Twitter	B-Application
's	O
own	O
two-step	O
verification	O
.	O
</s>
<s>
As	O
of	O
May	O
2015	O
,	O
TweetDeck	B-Operating_System
added	O
a	O
"	O
confirmation	O
step	O
"	O
feature	O
,	O
giving	O
users	O
the	O
option	O
to	O
require	O
an	O
extra	O
step	O
before	O
sending	O
a	O
tweet	O
.	O
</s>
<s>
A	O
February	O
2018	O
change	O
to	O
the	O
Twitter	B-Application
API	B-General_Concept
restricted	O
the	O
ability	O
of	O
TweetDeck	B-Operating_System
and	O
other	O
third-party	O
applications	O
from	O
sending	O
mass	O
tweets	O
due	O
to	O
concerns	O
over	O
abuse	O
of	O
bots	O
mass	O
posting	O
content	O
and	O
posts	O
.	O
</s>
<s>
The	O
change	O
also	O
restricts	O
ability	O
of	O
using	O
multiple	O
accounts	O
via	O
the	O
API	B-General_Concept
.	O
</s>
<s>
In	O
July	O
2021	O
,	O
Twitter	B-Application
announced	O
the	O
beta	O
launch	O
of	O
an	O
overhaul	O
for	O
TweetDeck	B-Operating_System
.	O
</s>
<s>
The	O
new	O
version	O
will	O
have	O
a	O
different	O
visual	O
look	O
and	O
will	O
incorporate	O
more	O
functionality	O
from	O
the	O
main	O
Twitter	B-Application
website	O
.	O
</s>
<s>
July	O
4	O
,	O
2008	O
–	O
first	O
version	O
of	O
TweetDeck	B-Operating_System
,	O
originally	O
an	O
independent	O
Twitter	B-Application
app	O
by	O
Iain	O
Dodsworth	O
,	O
was	O
released	O
.	O
</s>
<s>
June	O
19	O
,	O
2009	O
–	O
iPhone	B-Device
version	O
released	O
.	O
</s>
<s>
May	O
2010	O
–	O
iPad	B-Device
version	O
released	O
.	O
</s>
<s>
October	O
2010	O
–	O
Android	B-Application
version	O
made	O
available	O
after	O
a	O
public	O
beta	O
period	O
.	O
</s>
<s>
May	O
25	O
,	O
2011	O
–	O
Twitter	B-Application
acquired	O
TweetDeck	B-Operating_System
.	O
</s>
<s>
September	O
15	O
,	O
2011	O
–	O
TweetDeck	B-Operating_System
tweeted	O
that	O
new	O
updates	O
for	O
all	O
versions	O
would	O
be	O
released	O
and	O
that	O
"	O
As	O
part	O
of	O
the	O
process	O
of	O
making	O
TweetDeck	B-Operating_System
more	O
consistent	O
with	O
Twitter.com	B-Application
&	O
Twitter	B-Application
's	O
mobile	O
apps	O
,	O
we	O
're	O
removing	O
deck.ly	O
from	O
our	O
apps.	O
"	O
</s>
<s>
Many	O
users	O
expressed	O
their	O
anger	O
at	O
this	O
feature	O
removal	O
in	O
the	O
comments	O
on	O
the	O
iOS	O
and	O
Android	B-Application
Market	I-Application
.	O
</s>
<s>
Deck.ly	O
previously	O
allowed	O
users	O
to	O
post	O
tweets	O
in	O
excess	O
of	O
140	B-Application
characters	I-Application
.	O
</s>
<s>
December	O
8	O
,	O
2011	O
–	O
Twitter	B-Application
released	O
a	O
new	O
version	O
branded	O
"	O
TweetDeck	B-Operating_System
by	O
Twitter	B-Application
"	O
,	O
as	O
part	O
of	O
Twitter	B-Application
's	O
redesign	O
of	O
its	O
services	O
.	O
</s>
<s>
TweetDeck	B-Operating_System
changed	O
from	O
an	O
Adobe	B-Operating_System
AIR	I-Operating_System
application	O
to	O
a	O
native	O
Windows	O
and	O
Mac	B-Application
OS	I-Application
X	O
application	O
in	O
this	O
release	O
,	O
introducing	O
a	O
web	O
version	O
of	O
TweetDeck	B-Operating_System
for	O
WebKit-based	O
browsers	O
based	O
on	O
TweetDeck	B-Operating_System
's	O
existing	O
Google	B-Operating_System
Chrome	I-Operating_System
App	I-Operating_System
.	O
</s>
<s>
The	O
update	O
dropped	O
support	O
for	O
LinkedIn	B-Application
,	O
Google	B-Application
Buzz	I-Application
,	O
Foursquare	B-Application
,	O
MySpace	B-Application
accounts	O
.	O
</s>
<s>
March	O
4	O
,	O
2013	O
–	O
TweetDeck	B-Operating_System
announced	O
in	O
a	O
blog	O
post	O
that	O
they	O
would	O
be	O
suspending	O
mobile	O
versions	O
of	O
TweetDeck	B-Operating_System
including	O
TweetDeck	B-Operating_System
AIR	O
,	O
TweetDeck	B-Operating_System
for	O
iPhone	B-Device
and	O
TweetDeck	B-Operating_System
for	O
Android	B-Application
,	O
which	O
were	O
removed	O
from	O
their	O
respective	O
app	O
stores	O
in	O
May	O
.	O
</s>
<s>
TweetDeck	B-Operating_System
said	O
they	O
would	O
"	O
focus	O
our	O
development	O
efforts	O
on	O
our	O
modern	O
,	O
web-based	B-Application
versions	O
"	O
.	O
</s>
<s>
May	O
2013	O
–	O
Users	O
were	O
informed	O
that	O
'	O
Facebook	O
is	O
no	O
longer	O
supported	O
in	O
TweetDeck	B-Operating_System
 '	O
,	O
and	O
Facebook	O
accounts	O
and	O
Facebook	O
columns	O
would	O
be	O
removed	O
on	O
May	O
7	O
.	O
</s>
<s>
All	O
unofficial	O
variants	O
of	O
TweetDeck	B-Operating_System
stopped	O
working	O
in	O
early	O
May	O
2013	O
because	O
of	O
more	O
restrictive	O
API	B-General_Concept
version	O
1.1	O
.	O
</s>
<s>
July	O
25	O
,	O
2013	O
–	O
at	O
12:00	O
PM	O
EDT	O
US	O
,	O
Twitter	B-Application
turned	O
off	O
API	B-General_Concept
v1	O
which	O
effectively	O
shut	O
down	O
the	O
Android	B-Application
,	O
iOS	O
,	O
and	O
AIR	O
versions	O
of	O
TweetDeck	B-Operating_System
.	O
</s>
<s>
December	O
11	O
,	O
2013	O
–	O
Twitter	B-Application
began	O
allowing	O
new	O
TweetDeck	B-Operating_System
users	O
to	O
sign	O
in	O
with	O
their	O
Twitter	B-Application
usernames	O
and	O
passwords	O
,	O
removing	O
the	O
previous	O
barrier-to-entry	O
requiring	O
users	O
to	O
register	O
a	O
separate	O
TweetDeck	B-Operating_System
account	O
.	O
</s>
<s>
In	O
a	O
blog	O
post	O
,	O
Twitter	B-Application
said	O
"	O
When	O
single	O
sign	O
in	O
is	O
fully	O
available	O
to	O
all	O
current	O
users	O
,	O
we	O
'll	O
also	O
make	O
it	O
possible	O
to	O
seamlessly	O
integrate	O
your	O
current	O
TweetDeck	B-Operating_System
settings	O
and	O
preferences	O
"	O
.	O
</s>
<s>
June	O
11	O
,	O
2014	O
–	O
A	O
cross-site	O
scripting	O
vulnerability	O
in	O
TweetDeck	B-Operating_System
was	O
discovered	O
,	O
leading	O
to	O
a	O
self-replicating	O
tweet	O
that	O
affected	O
over	O
83,000	O
Twitter	B-Application
users	O
.	O
</s>
<s>
July	O
1	O
,	O
2022	O
-	O
The	O
MacOS	B-Application
app	O
stopped	O
functioning	O
,	O
with	O
users	O
being	O
directed	O
to	O
the	O
TweetDeck	B-Operating_System
web-site	O
instead	O
.	O
</s>
<s>
Originally	O
,	O
as	O
it	O
is	O
now	O
,	O
TweetDeck	B-Operating_System
was	O
aimed	O
towards	O
the	O
Twitter	B-Application
social	O
networking	O
service	O
.	O
</s>
<s>
Over	O
the	O
years	O
,	O
TweetDeck	B-Operating_System
introduced	O
support	O
for	O
other	O
social	O
networks	O
,	O
but	O
has	O
since	O
removed	O
that	O
support	O
.	O
</s>
<s>
From	O
version	O
0.30	O
TweetDeck	B-Operating_System
also	O
supported	O
MySpace	B-Application
integration	O
.	O
</s>
<s>
Version	O
0.32	O
,	O
released	O
on	O
November	O
30	O
,	O
2009	O
,	O
added	O
LinkedIn	B-Application
integration	O
and	O
new	O
Twitter	B-Application
features	O
.	O
</s>
<s>
In	O
May	O
2010	O
TweetDeck	B-Operating_System
also	O
added	O
integration	O
with	O
the	O
Google	B-Application
Buzz	I-Application
and	O
Foursquare	B-Application
social	O
networks	O
.	O
</s>
<s>
In	O
2012	O
TweetDeck	B-Operating_System
reverted	O
to	O
only	O
supporting	O
Twitter	B-Application
and	O
Facebook	O
,	O
ending	O
support	O
for	O
LinkedIn	B-Application
,	O
MySpace	B-Application
,	O
and	O
the	O
now	O
defunct	O
Google	B-Application
Buzz	I-Application
effective	O
June	O
2012	O
.	O
</s>
<s>
In	O
May	O
2013	O
,	O
TweetDeck	B-Operating_System
removed	O
support	O
for	O
Facebook	O
accounts	O
.	O
</s>
<s>
A	O
year	O
after	O
launching	O
TweetDeck	B-Operating_System
in	O
2008	O
,	O
Iain	O
Dodsworth	O
received	O
his	O
initial	O
$	O
300,000	O
seed	O
funding	O
from	O
The	O
Accelerator	O
Group	O
,	O
Howard	O
Lindzon	O
,	O
Taavet	O
Hinrikus	O
,	O
Gerry	O
Campbell	O
,	O
Roger	O
Ehrenberg	O
,	O
betaworks	O
,	O
Brian	O
Pokorny	O
,	O
and	O
Bill	O
Tai	O
.	O
</s>
<s>
On	O
May	O
25	O
,	O
2011	O
,	O
TweetDeck	B-Operating_System
was	O
bought	O
by	O
Twitter	B-Application
for	O
£25	O
million	O
,	O
after	O
a	O
bidding	O
war	O
with	O
Bill	O
Gross	O
's	O
UberMedia	O
.	O
</s>
<s>
On	O
January	O
22	O
,	O
2013	O
,	O
The	O
American	O
directors	O
of	O
Twitter	B-Application
were	O
sent	O
a	O
letter	O
by	O
Companies	O
House	O
(	O
the	O
United	O
Kingdom	O
Registrar	O
of	O
Companies	O
)	O
warning	O
them	O
that	O
their	O
UK	O
subsidiary	O
company	O
TweetDeck	B-Operating_System
Ltd	O
.	O
was	O
at	O
risk	O
of	O
closure	O
,	O
over	O
missed	O
accounting	O
deadlines	O
.	O
</s>
<s>
This	O
had	O
no	O
bearing	O
on	O
the	O
product	O
or	O
service	O
which	O
was	O
by	O
then	O
run	O
by	O
Twitter	B-Application
,	O
not	O
by	O
TweetDeck	B-Operating_System
Ltd	O
,	O
which	O
was	O
officially	O
struck	O
off	O
the	O
business	O
register	O
by	O
Companies	O
House	O
,	O
and	O
dissolved	O
,	O
for	O
failure	O
to	O
file	O
accounts	O
for	O
2011	O
.	O
</s>
