<s>
CVSNT	B-Protocol
is	O
a	O
version	B-Architecture
control	I-Architecture
system	I-Architecture
compatible	O
with	O
and	O
originally	O
based	O
on	O
Concurrent	B-Application
Versions	I-Application
System	I-Application
(	O
CVS	B-Application
)	O
,	O
but	O
whereas	O
that	O
was	O
popular	O
in	O
the	O
open-source	B-Application
world	O
,	O
CVSNT	B-Protocol
included	O
features	O
designed	O
for	O
developers	O
working	O
on	O
commercial	B-Application
software	I-Application
including	O
support	O
for	O
Windows	B-Application
,	O
Active	B-Protocol
Directory	I-Protocol
authentication	O
,	O
reserved	O
branches/locking	O
,	O
per-file	O
access	O
control	O
lists	O
and	O
Unicode	O
filenames	O
.	O
</s>
<s>
Also	O
included	O
in	O
CVSNT	B-Protocol
were	O
various	O
RCS	B-Architecture
tools	O
updated	O
to	O
work	O
with	O
more	O
recent	O
compilers	O
and	O
compatible	O
with	O
CVSNT	B-Protocol
.	O
</s>
<s>
CVSNT	B-Protocol
was	O
initially	O
developed	O
by	O
users	O
unhappy	O
with	O
the	O
limitations	O
of	O
CVS	B-Application
1.10.8	O
,	O
addressing	O
limitations	O
related	O
to	O
running	O
CVS	B-Application
server	O
on	O
Windows	B-Application
and	O
handling	O
filenames	O
for	O
case-insensitive	O
platforms	O
.	O
</s>
<s>
March	O
Hare	O
Software	O
began	O
sponsorship	O
of	O
the	O
project	O
in	O
July	O
2004	O
to	O
guarantee	O
the	O
project	O
's	O
future	O
and	O
to	O
employ	O
the	O
original	O
project	O
manager	O
on	O
CVSNT	B-Protocol
development	O
and	O
commercial	O
support	O
.	O
</s>
<s>
CVSNT	B-Protocol
was	O
commercially	O
popular	O
,	O
with	O
a	O
number	O
of	O
commercial	O
IDEs	O
directly	O
including	O
support	O
for	O
it	O
including	O
Oracle	O
JDeveloper	O
,	O
IBM	O
Rational	O
Application	O
Developer	O
,	O
and	O
IBM	O
WebSphere	O
Business	O
Modeler	O
.	O
</s>
<s>
The	O
CVSNT	B-Protocol
variation	O
of	O
RCS	B-Architecture
tools	O
were	O
also	O
widely	O
used	O
,	O
including	O
by	O
Apple	O
,	O
Inc	O
.	O
CVSNT	B-Protocol
was	O
so	O
ubiquitous	O
in	O
commercial	O
programming	O
that	O
it	O
was	O
often	O
referred	O
to	O
simply	O
as	O
CVS	B-Application
,	O
even	O
though	O
the	O
open-source	B-Application
CVS	B-Application
developers	O
had	O
publicly	O
stated	O
that	O
CVSNT	B-Protocol
was	O
significantly	O
different	O
and	O
should	O
be	O
kept	O
as	O
a	O
separate	O
project	O
.	O
</s>
<s>
Several	O
books	O
were	O
written	O
about	O
CVSNT	B-Protocol
including	O
CVSNT	B-Protocol
(	O
CVS	B-Application
for	O
NT	O
)	O
and	O
All	O
About	O
CVS	B-Application
.	O
</s>
<s>
CVSNT	B-Protocol
keeps	O
track	O
of	O
the	O
version	O
history	O
of	O
a	O
project	O
(	O
or	O
set	O
of	O
files	O
)	O
.	O
</s>
<s>
CVSNT	B-Protocol
is	O
based	O
on	O
the	O
same	O
client	B-Operating_System
–	I-Operating_System
server	I-Operating_System
architecture	I-Operating_System
as	O
the	O
Concurrent	B-Application
Versions	I-Application
System	I-Application
:	O
a	O
server	O
stores	O
the	O
current	O
version(s )	O
of	O
the	O
project	O
and	O
its	O
history	O
,	O
and	O
clients	O
connect	O
to	O
the	O
server	O
in	O
order	O
to	O
check-out	O
a	O
complete	O
copy	O
of	O
the	O
project	O
,	O
work	O
on	O
this	O
copy	O
and	O
then	O
later	O
check-in	O
their	O
changes	O
.	O
</s>
<s>
Typically	O
,	O
client	O
and	O
server	O
connect	O
over	O
a	O
WAN	O
or	O
Internet	O
,	O
but	O
client	O
and	O
server	O
may	O
both	O
run	O
on	O
the	O
same	O
LAN	B-General_Concept
or	O
even	O
the	O
same	O
machine	O
.	O
</s>
<s>
The	O
server	O
software	O
runs	O
equally	O
well	O
on	O
Unix	B-Application
and	O
Windows	B-Application
.	O
</s>
<s>
It	O
is	O
compatible	O
with	O
CVS	B-Application
clients	O
and	O
supports	O
a	O
large	O
number	O
of	O
configuration	B-General_Concept
management	I-General_Concept
methodologies	O
including	O
the	O
CVS	B-Application
compatible	O
unreserved	O
method	O
and	O
the	O
VSS-like	O
reserved	O
method	O
.	O
</s>
<s>
The	O
modular	O
nature	O
of	O
CVSNT	B-Protocol
allows	O
server	O
administrators	O
to	O
dynamically	O
enable	O
and	O
disable	O
protocols	O
as	O
well	O
as	O
load	O
additional	O
functions	O
via	O
triggers	O
such	O
as	O
Audit	O
,	O
Defect	O
Tracking	O
Integration	O
,	O
Automatic	O
Checkout	O
(	O
for	O
webservers	O
)	O
and	O
more	O
.	O
</s>
<s>
CVSNT	B-Protocol
Server	O
features	O
include	O
:	O
</s>
<s>
Detailed	O
audit	O
and	O
metrics	O
recorded	O
in	O
an	O
SQL	B-Language
database	I-Language
.	O
</s>
<s>
Authentication	O
with	O
Active	B-Protocol
Directory	I-Protocol
.	O
</s>
<s>
Native	O
servers	O
available	O
for	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Windows	B-Application
,	O
Linux	B-Application
,	O
Solaris	O
,	O
HP-UX	O
.	O
</s>
<s>
Users	O
unhappy	O
with	O
the	O
limitations	O
of	O
CVS	B-Application
1.10.8	O
began	O
the	O
development	O
of	O
CVSNT	B-Protocol
.	O
</s>
<s>
The	O
original	O
limitations	O
addressed	O
were	O
related	O
to	O
running	O
CVS	B-Application
server	O
on	O
Windows	B-Application
and	O
handling	O
filenames	O
for	O
case-insensitive	O
platforms	O
.	O
</s>
<s>
Linux	B-Application
and	O
Unix	B-Application
support	O
was	O
re-added	O
to	O
CVSNT	B-Protocol
in	O
early	O
2002	O
.	O
</s>
<s>
From	O
the	O
project	O
's	O
inception	O
until	O
October	O
2002	O
CVSNT	B-Protocol
and	O
CVS	B-Application
used	O
identical	O
version	O
numbers	O
and	O
CVSNT	B-Protocol
was	O
"	O
kept	O
in	O
sync	O
"	O
with	O
the	O
features	O
and	O
code	O
base	O
of	O
CVS	B-Application
.	O
</s>
<s>
After	O
October	O
2002	O
,	O
CVSNT	B-Protocol
began	O
its	O
own	O
version	O
sequence	O
beginning	O
with	O
"	O
2	O
"	O
to	O
indicate	O
significant	O
departure	O
from	O
its	O
CVS	B-Application
origins	O
.	O
</s>
<s>
Since	O
that	O
time	O
,	O
there	O
has	O
not	O
been	O
a	O
stable	O
feature	O
release	O
of	O
CVS	B-Application
.	O
</s>
<s>
However	O
the	O
unstable	O
CVS	B-Application
1.12	O
contains	O
some	O
of	O
the	O
oldest	O
features	O
originally	O
implemented	O
in	O
CVSNT	B-Protocol
.	O
</s>
<s>
Due	O
to	O
this	O
shared	O
history	O
,	O
all	O
features	O
from	O
CVS	B-Application
1.11	O
are	O
included	O
in	O
CVSNT	B-Protocol
and	O
most	O
from	O
CVS	B-Application
1.12	O
(	O
e.g.	O
</s>
<s>
:	O
the	O
1.12	O
'	O
ls	O
 '	O
feature	O
is	O
functionally	O
compatible	O
with	O
the	O
CVSNT	B-Protocol
'	O
ls	O
 '	O
)	O
.	O
</s>
<s>
In	O
2003	O
,	O
the	O
CVSNT	B-Protocol
SJIS	O
project	O
released	O
a	O
Japanese	O
version	O
of	O
CVSNT	B-Protocol
including	O
support	O
for	O
SJIS	O
filenames	O
and	O
file	O
encoding	O
.	O
</s>
<s>
March	O
Hare	O
Software	O
began	O
sponsorship	O
of	O
the	O
project	O
in	O
July	O
2004	O
to	O
guarantee	O
the	O
project	O
's	O
future	O
and	O
to	O
employ	O
the	O
original	O
project	O
manager	O
on	O
CVSNT	B-Protocol
development	O
and	O
commercial	O
support	O
.	O
</s>
<s>
In	O
February	O
2005	O
,	O
the	O
project	O
servers	O
moved	O
to	O
CVSNT	B-Protocol
version	O
2.5	O
and	O
began	O
unstable	O
releases	O
of	O
a	O
new	O
server	O
incorporating	O
server	O
plugins	O
,	O
ACLs	O
,	O
filename	O
character	O
set	O
conversion	O
as	O
well	O
as	O
client/server	B-Operating_System
autodiscovery	O
.	O
</s>
<s>
In	O
October	O
2005	O
,	O
the	O
first	O
commercial	O
CVS	B-Application
Suite	O
was	O
released	O
,	O
incorporating	O
non-GPL	O
addins	O
and	O
clients	O
for	O
CVSNT	B-Protocol
.	O
</s>
<s>
In	O
November	O
2005	O
,	O
CVSNT	B-Protocol
was	O
enhanced	O
to	O
incorporate	O
the	O
features	O
of	O
the	O
CVSNT	B-Protocol
SJIS	O
project	O
.	O
</s>
<s>
In	O
March	O
2006	O
,	O
the	O
project	O
servers	O
moved	O
to	O
CVSNT	B-Protocol
version	O
2.6	O
and	O
began	O
unstable	O
releases	O
of	O
the	O
new	O
server	O
backend	O
.	O
</s>
<s>
This	O
backend	O
incorporated	O
a	O
partial	O
SQL	B-Language
database	I-Language
repository	O
to	O
facilitate	O
better	O
server	O
performance	O
and	O
more	O
complex	O
server	O
features	O
.	O
</s>
<s>
When	O
work	O
was	O
abandoned	O
on	O
CVSNT	B-Protocol
2.6	O
and	O
moved	O
to	O
EVS/CVSNT	O
3.1	O
the	O
project	O
server	O
was	O
moved	O
back	O
to	O
2.5.04	O
.	O
</s>
<s>
In	O
March	O
2010	O
the	O
project	O
released	O
version	O
2.5.05	O
with	O
a	O
server	O
that	O
always	O
runs	O
in	O
Unicode	O
,	O
native	O
Windows	B-Application
crypt	O
and	O
schannel	O
support	O
and	O
support	O
for	O
Internationalized	B-Language
Domain	I-Language
Names	I-Language
.	O
</s>
<s>
The	O
status	O
of	O
the	O
project	O
is	O
active	O
,	O
with	O
further	O
releases	O
of	O
CVSNT	B-Protocol
2.5	O
planned	O
,	O
and	O
continuing	O
evolution	O
of	O
CVSNT/EVS	O
3.1	O
.	O
</s>
<s>
CVSNT/EVS	O
will	O
implement	O
a	O
complete	O
SQL	B-Language
database	I-Language
repository	O
to	O
support	O
further	O
complex	O
server	O
and	O
client	O
features	O
.	O
</s>
<s>
An	O
RCS	B-Architecture
emulation	O
layer	O
is	O
also	O
planned	O
for	O
CVSNT/EVS	O
3.1	O
to	O
support	O
legacy	O
systems	O
.	O
</s>
<s>
On	O
June	O
30	O
,	O
2010	O
,	O
March	O
Hare	O
retired	O
the	O
zero-dollar	O
Community	O
edition	O
,	O
however	O
the	O
commercial	O
"	O
CVS	B-Application
Suite	O
"	O
edition	O
with	O
a	O
new	O
CVSNT	B-Protocol
2.8	O
release	O
and	O
support	O
is	O
actively	O
developed	O
and	O
available	O
from	O
the	O
web	O
store	O
,	O
as	O
are	O
snapshots	O
of	O
the	O
older	O
community	O
releases	O
(	O
unsupported	O
,	O
and	O
a	O
fee	O
is	O
required	O
to	O
download	O
)	O
.	O
</s>
<s>
The	O
description	O
of	O
the	O
public	O
CVS	B-Application
server	O
for	O
source	O
code	O
was	O
updated	O
with	O
the	O
caveat	O
"	O
not	O
guaranteed	O
to	O
be	O
available	O
24x7	O
,	O
is	O
provided	O
by	O
a	O
volunteer	O
and	O
may	O
be	O
withdrawn	O
at	O
any	O
time	O
"	O
.	O
</s>
<s>
This	O
arrangement	O
appears	O
to	O
fulfil	O
the	O
requirements	O
of	O
the	O
GPL	B-License
,	O
since	O
the	O
software	O
offered	O
for	O
download	O
includes	O
a	O
written	O
offer	O
to	O
receive	O
the	O
source	O
code	O
,	O
as	O
is	O
explicitly	O
required	O
by	O
the	O
license	O
.	O
</s>
<s>
Software	O
incorporating	O
CVSNT	B-Protocol
includes	O
:	O
</s>
<s>
TortoiseCVS	B-Protocol
recommend	O
CVSNT	B-Protocol
for	O
both	O
Unix	B-Application
and	O
Windows	B-Application
machines	O
.	O
</s>
<s>
WinCVS	B-Protocol
was	O
developed	O
in	O
close	O
cooperation	O
with	O
CVSNT	B-Protocol
project	O
.	O
</s>
