<s>
Bitbucket	O
is	O
a	O
Git-based	O
source	B-General_Concept
code	I-General_Concept
repository	I-General_Concept
hosting	O
service	O
owned	O
by	O
Atlassian	O
.	O
</s>
<s>
Bitbucket	O
offers	O
both	O
commercial	O
plans	O
and	O
free	O
accounts	O
with	O
an	O
unlimited	O
number	O
of	O
private	O
repositories	B-General_Concept
.	O
</s>
<s>
Bitbucket	O
Cloud	O
(	O
previously	O
known	O
as	O
Bitbucket	O
)	O
is	O
written	O
in	O
Python	B-Language
using	O
the	O
Django	B-Language
web	I-Language
framework	I-Language
.	O
</s>
<s>
Bitbucket	B-Application
Server	I-Application
(	O
formerly	O
known	O
as	O
Stash	O
)	O
is	O
a	O
combination	O
Git	B-Application
server	O
and	O
web	O
interface	O
product	O
written	O
in	O
Java	B-Language
and	O
built	O
with	O
Apache	B-Language
Maven	I-Language
.	O
</s>
<s>
It	O
allows	O
users	O
to	O
do	O
basic	O
Git	B-Application
operations	O
(	O
such	O
as	O
reviewing	O
or	O
merging	O
code	O
,	O
similar	O
to	O
GitHub	B-Application
)	O
while	O
controlling	O
read	O
and	O
write	O
access	O
to	O
the	O
code	O
.	O
</s>
<s>
Bitbucket	B-Application
Server	I-Application
is	O
a	O
commercial	B-Application
software	I-Application
product	O
that	O
can	O
be	O
licensed	O
for	O
running	O
on-premises	O
.	O
</s>
<s>
Atlassian	O
provides	O
Bitbucket	B-Application
Server	I-Application
for	O
free	O
to	O
open	B-Application
source	I-Application
projects	O
meeting	O
certain	O
criteria	O
,	O
and	O
to	O
organizations	O
that	O
are	O
non-profit	O
,	O
non-government	O
,	O
non-academic	O
,	O
non-commercial	O
,	O
non-political	O
,	O
and	O
secular	O
.	O
</s>
<s>
In	O
September	O
2015	O
,	O
Atlassian	O
renamed	O
their	O
Stash	O
product	O
to	O
Bitbucket	B-Application
Server	I-Application
.	O
</s>
<s>
In	O
July	O
2016	O
,	O
Bitbucket	O
added	O
support	O
for	O
Git	B-Application
Large	O
File	O
Storage	O
(	O
LFS	O
)	O
.	O
</s>
<s>
In	O
March	O
2020	O
,	O
Bitbucket	B-Application
Server	I-Application
controversially	O
dropped	O
support	O
for	O
viewing	O
three	O
way	O
diffs	O
and	O
in	O
July	O
2020	O
,	O
Bitbucket	O
Cloud	O
removed	O
support	O
for	O
its	O
original	O
repository	B-General_Concept
format	O
Mercurial	B-Protocol
.	O
</s>
