<s>
YouTrack	B-Language
is	O
a	O
proprietary	B-Application
,	O
commercial	O
browser-based	O
bug	B-Application
tracker	I-Application
,	O
issue	B-Application
tracking	I-Application
system	I-Application
and	O
project	B-Application
management	I-Application
software	I-Application
developed	O
by	O
JetBrains	O
.	O
</s>
<s>
YouTrack	B-Language
uses	O
the	O
language-oriented	B-Application
programming	I-Application
paradigm	O
,	O
and	O
now	O
the	O
frontend	O
is	O
written	O
in	O
JavaScript	B-Language
,	O
while	O
the	O
backend	O
relies	O
on	O
Kotlin	B-Language
(	O
programming	O
language	O
)	O
,	O
a	O
programming	O
language	O
created	O
by	O
the	O
same	O
software	O
house	O
.	O
</s>
<s>
For	O
remote	B-Operating_System
procedure	I-Operating_System
calls	I-Operating_System
,	O
YouTrack	B-Language
supports	O
a	O
RESTful	B-Protocol
API	I-Protocol
.	O
</s>
<s>
JetBrains	O
offers	O
YouTrack	B-Language
in	O
cloud	O
hosted	O
and	O
on	O
premises	O
versions	O
.	O
</s>
<s>
Standard	O
YouTrack	B-Language
integrations	O
include	O
import	O
from	O
Jira	B-Protocol
,	O
Mailbox	O
Integration	O
,	O
Zendesk	O
Integration	O
,	O
and	O
an	O
integrated	O
working	O
environment	O
with	O
Upsource	O
and	O
TeamCity	B-Application
.	O
</s>
<s>
Integrations	O
with	O
GitHub	B-Application
,	O
BitBucket	B-Protocol
,	O
and	O
GitLab	B-Application
are	O
provided	O
out	O
of	O
the	O
box	O
,	O
while	O
connections	O
to	O
other	O
version	O
control	O
systems	O
are	O
supported	O
via	O
the	O
TeamCity	B-Application
or	O
Upsource	O
integration	O
.	O
</s>
<s>
TeamCity	B-Application
supports	O
connections	O
to	O
repositories	O
in	O
ClearCase	B-Protocol
,	O
CVS	B-Application
,	O
Git	B-Application
,	O
Mercurial	B-Protocol
,	O
Perforce	B-General_Concept
,	O
SourceGear	B-Language
Vault	I-Language
,	O
StarTeam	B-Application
,	O
Subversion	B-Application
,	O
Team	B-Application
Foundation	I-Application
Server	I-Application
,	O
and	O
Visual	B-Protocol
SourceSafe	I-Protocol
.	O
</s>
<s>
Upsource	O
supports	O
connections	O
to	O
repositories	O
in	O
Git	B-Application
,	O
Mercurial	B-Protocol
,	O
Perforce	B-General_Concept
,	O
and	O
Subversion	B-Application
.	O
</s>
<s>
YouTrack	B-Language
supports	O
integration	O
with	O
several	O
popular	O
test	B-Application
management	I-Application
tools	I-Application
:	O
PractiTest	O
,	O
TestLink	B-Application
,	O
TestLodge	B-Application
,	O
and	O
TestRail	B-Application
.	O
</s>
<s>
YouTrack	B-Language
can	O
also	O
be	O
integrated	O
with	O
Slack	B-Protocol
workplace	O
.	O
</s>
<s>
Confluence	B-Protocol
integration	O
is	O
performed	O
by	O
adding	O
macros	O
to	O
insert	O
links	O
to	O
issues	O
and	O
insert	O
reports	O
into	O
Confluence	B-Protocol
Pages	O
.	O
</s>
<s>
YouTrack	B-Language
can	O
integrate	O
with	O
JetBrains	O
IDEs	B-Application
.	O
</s>
<s>
YouTrack	B-Language
is	O
capable	O
of	O
importing	O
issues	O
from	O
Jira	B-Protocol
,	O
CSV	O
file	O
,	O
Bugzilla	B-Application
,	O
FogBugz	B-Application
,	O
GitHub	B-Application
,	O
MantisBT	B-Application
,	O
Redmine	B-Operating_System
,	O
Trac	B-Language
,	O
or	O
another	O
YouTrack	B-Language
Server	O
.	O
</s>
<s>
YouTrack	B-Language
also	O
supports	O
user	O
authentication	O
.	O
</s>
<s>
YouTrack	B-Language
's	O
Ajax-based	O
user	O
interface	O
allows	O
both	O
keyboard	O
and	O
mouse	O
interaction	O
.	O
</s>
<s>
YouTrack	B-Language
REST	B-Protocol
API	I-Protocol
allows	O
developers	O
to	O
perform	O
various	O
actions	O
programmatically	O
,	O
including	O
:	O
</s>
<s>
Importing	O
existing	O
projects	O
and	O
issues	O
from	O
other	O
issue	B-Application
tracking	I-Application
systems	I-Application
.	O
</s>
<s>
This	O
is	O
done	O
with	O
via	O
the	O
Hub	O
REST	B-Protocol
API	I-Protocol
,	O
a	O
user	O
and	O
a	O
permission	O
management	O
system	O
by	O
JetBrains	O
.	O
</s>
<s>
YouTrack	B-Language
6.0	O
and	O
later	O
comes	O
with	O
Hub	O
built-in	O
.	O
</s>
