<s>
CeCILL	B-License
(	O
from	O
CEA	O
CNRS	O
INRIA	O
Logiciel	O
Libre	O
)	O
is	O
a	O
free	B-License
software	I-License
license	I-License
adapted	O
to	O
both	O
international	O
and	O
French	O
legal	O
matters	O
,	O
in	O
the	O
spirit	O
of	O
and	O
retaining	O
compatibility	O
with	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
.	O
</s>
<s>
The	O
CeCILL	B-License
grants	O
users	O
the	O
right	O
to	O
copy	O
,	O
modify	O
,	O
and	O
distribute	O
the	O
licensed	O
software	O
freely	O
.	O
</s>
<s>
Like	O
the	O
GPL	B-License
,	O
it	O
requires	O
that	O
modifications	O
to	O
the	O
software	O
be	O
distributed	O
under	O
the	O
CeCILL	B-License
,	O
but	O
it	O
makes	O
no	O
claim	O
to	O
work	O
that	O
executes	O
in	O
"	O
separate	O
address	O
spaces	O
"	O
,	O
which	O
may	O
be	O
licensed	O
under	O
terms	O
of	O
the	O
licensee	O
's	O
choice	O
.	O
</s>
<s>
The	O
CeCILL	B-License
does	O
not	O
preclude	O
the	O
licensor	O
from	O
offering	O
a	O
warranty	O
or	O
technical	O
support	O
for	O
its	O
software	O
,	O
but	O
requires	O
that	O
such	O
services	O
be	O
negotiated	O
in	O
a	O
separate	O
agreement	O
.	O
</s>
<s>
The	O
license	O
is	O
compatible	O
with	O
the	O
GPL	B-License
through	O
an	O
explicit	O
relicensing	O
clause	O
.	O
</s>
<s>
The	O
explicit	O
reference	O
to	O
a	O
French	O
court	O
will	O
be	O
used	O
only	O
if	O
mutual	O
agreement	O
is	O
not	O
possible	O
;	O
this	O
immediately	O
solves	O
the	O
problem	O
of	O
competence	O
of	O
laws	O
(	O
something	O
that	O
the	O
GPL	B-License
does	O
not	O
solve	O
cleanly	O
,	O
except	O
when	O
all	O
parties	O
in	O
a	O
litigation	O
are	O
in	O
the	O
USA	O
)	O
.	O
</s>
<s>
Version	O
2	O
was	O
developed	O
after	O
consultations	O
with	O
the	O
French-speaking	O
Linux	O
and	O
Free	O
Software	O
Users	O
 '	O
Association	O
,	O
the	O
Association	O
pour	O
la	O
Promotion	O
et	O
la	O
Recherche	O
en	O
Informatique	O
Libre	O
,	O
and	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
;	O
it	O
was	O
released	O
on	O
21	O
May	O
2005	O
.	O
</s>
<s>
According	O
to	O
the	O
CeCILL	B-License
FAQ	O
there	O
are	O
no	O
major	O
differences	O
in	O
spirit	O
,	O
though	O
there	O
are	O
in	O
terms	O
.	O
</s>
<s>
The	O
most	O
notable	O
difference	O
in	O
CeCILL	B-License
v2	O
is	O
the	O
fact	O
that	O
the	O
English	O
text	O
was	O
approved	O
not	O
as	O
a	O
draft	O
translation	O
(	O
as	O
in	O
CeCILL	B-License
v1	O
)	O
but	O
as	O
an	O
authentic	O
text	O
,	O
in	O
addition	O
to	O
the	O
equally	O
authentic	O
French	O
version	O
.	O
</s>
<s>
This	O
makes	O
the	O
CeCILL	B-License
license	I-License
much	O
easier	O
to	O
enforce	O
internationally	O
,	O
as	O
the	O
cost	O
of	O
producing	O
an	O
authentic	O
translation	O
in	O
any	O
international	O
court	O
will	O
be	O
lower	O
with	O
the	O
help	O
of	O
a	O
second	O
authentic	O
reference	O
text	O
.	O
</s>
<s>
The	O
second	O
difference	O
is	O
that	O
the	O
reference	O
to	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
,	O
with	O
which	O
CeCILL	B-License
v2	O
is	O
now	O
fully	O
compatible	O
,	O
is	O
explicitly	O
defined	O
precisely	O
using	O
its	O
exact	O
title	O
and	O
the	O
exact	O
name	O
of	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
,	O
to	O
avoid	O
all	O
possible	O
variations	O
of	O
the	O
terms	O
of	O
the	O
GPL	B-License
v2	O
.	O
</s>
<s>
With	O
these	O
changes	O
,	O
the	O
CeCILL	B-License
is	O
now	O
fully	O
enforceable	O
according	O
to	O
WIPO	O
rules	O
,	O
and	O
according	O
to	O
French	O
law	O
in	O
courts	O
,	O
without	O
the	O
legal	O
problems	O
remaining	O
in	O
GPL	B-License
version	O
2	O
outside	O
the	O
United	O
States	O
.	O
</s>
<s>
It	O
allows	O
relicensing	O
to	O
the	O
GNU	O
Affero	O
General	B-License
Public	I-License
License	I-License
and	O
the	O
European	O
Union	O
Public	O
License	O
as	O
well	O
as	O
the	O
GPL	B-License
,	O
and	O
clarifies	O
the	O
language	O
that	O
requires	O
licensees	O
to	O
give	O
access	O
to	O
the	O
source	O
code	O
(	O
which	O
had	O
previously	O
caused	O
rejection	O
of	O
version	O
2.0	O
by	O
the	O
Open	O
Source	O
Initiative	O
)	O
.	O
</s>
<s>
Note	O
that	O
CeCILL	B-License
v1	O
already	O
allowed	O
replacing	O
a	O
CeCILL	B-License
v1	O
license	O
by	O
CeCILL	B-License
v2	O
,	O
so	O
all	O
software	O
previously	O
licensed	O
with	O
CeCILL	B-License
v1	O
in	O
2004	O
can	O
be	O
licensed	O
with	O
CeCILL	B-License
v2	O
,	O
with	O
legal	O
terms	O
enforceable	O
as	O
authentic	O
not	O
only	O
in	O
French	O
but	O
in	O
English	O
too	O
.	O
</s>
<s>
The	O
fact	O
that	O
it	O
is	O
protected	O
by	O
reputed	O
public	O
research	O
centers	O
(	O
in	O
France	O
the	O
INRIA	O
,	O
a	O
founding	O
member	O
of	O
the	O
international	O
W3	O
consortium	O
,	O
and	O
the	O
CEA	O
working	O
on	O
atomic	O
energy	O
)	O
which	O
use	O
them	O
to	O
publish	O
their	O
own	O
open-source	O
and	O
free	O
software	O
,	O
and	O
by	O
critical	O
governmental	O
organizations	O
(	O
which	O
are	O
also	O
working	O
in	O
domains	O
like	O
military	O
and	O
defense	O
systems	O
)	O
also	O
gives	O
much	O
more	O
security	O
than	O
using	O
the	O
GPL	B-License
alone	O
,	O
as	O
the	O
license	O
is	O
supported	O
officially	O
by	O
a	O
government	O
which	O
is	O
a	O
full	O
member	O
of	O
WIPO	O
,	O
and	O
by	O
an	O
enforceable	O
law	O
.	O
</s>
<s>
This	O
also	O
means	O
that	O
all	O
international	O
treaties	O
related	O
to	O
the	O
protection	O
of	O
intellectual	O
rights	O
do	O
apply	O
to	O
CeCILL-licensed	O
products	O
,	O
and	O
so	O
they	O
are	O
enforceable	O
by	O
law	O
in	O
all	O
countries	O
that	O
signed	O
any	O
of	O
the	O
international	O
treaties	O
protected	O
by	O
WIPO	O
.	O
</s>
<s>
However	O
,	O
this	O
also	O
leaves	O
open	O
the	O
possibility	O
that	O
the	O
French	O
government	O
will	O
make	O
a	O
future	O
version	O
of	O
the	O
CeCILL	B-License
unfree	O
and	O
restricted	O
.	O
</s>
<s>
The	O
CeCILL	B-License
license	I-License
is	O
approved	O
as	O
a	O
"	O
Free	O
Software	O
"	O
license	O
by	O
the	O
FSF	O
with	O
which	O
the	O
CeCILL	B-License
project	O
founders	O
have	O
worked	O
.	O
</s>
<s>
Since	O
version	O
2.1	O
,	O
CeCILL	B-License
is	O
also	O
approved	O
by	O
the	O
Open	O
Source	O
Initiative	O
as	O
an	O
"	O
Open	O
Source	O
"	O
license	O
.	O
</s>
<s>
The	O
CeCILL	B-License
project	O
also	O
adds	O
two	O
other	O
licenses	O
:	O
</s>
<s>
CeCILL-B	B-License
,	O
which	O
is	O
fully	O
compatible	O
with	O
BSD-like	O
licenses	O
(	O
BSD	O
,	O
X11	O
,	O
MIT	O
)	O
which	O
have	O
a	O
strong	O
attribution	O
requirement	O
(	O
which	O
goes	O
much	O
further	O
than	O
a	O
simple	O
copyright	O
notice	O
)	O
,	O
a	O
requirement	O
normally	O
not	O
allowed	O
by	O
the	O
GPL	B-License
itself	O
(	O
which	O
describes	O
it	O
as	O
an	O
advertising	O
requirement	O
)	O
,	O
and	O
so	O
this	O
license	O
may	O
be	O
incompatible	O
with	O
the	O
original	O
CeCILL	B-License
license	I-License
,	O
if	O
BSD-like	O
components	O
are	O
integrated	O
,	O
unless	O
the	O
software	O
uses	O
a	O
dual-licensing	O
scheme	O
and	O
conforms	O
to	O
the	O
licensing	O
terms	O
of	O
all	O
embedded	O
components	O
.	O
</s>
<s>
CeCILL-C	B-License
,	O
for	O
"	O
component	O
"	O
software	O
,	O
which	O
is	O
fully	O
compatible	O
with	O
the	O
FSF	O
's	O
LGPL	O
license	O
.	O
</s>
<s>
Although	O
the	O
three	O
CeCILL	B-License
licenses	I-License
were	O
developed	O
and	O
used	O
for	O
strategic	O
French	O
research	O
systems	O
(	O
in	O
the	O
domain	O
of	O
defense	O
,	O
space	O
launching	O
systems	O
,	O
medical	O
research	O
,	O
meteorology/climatology	O
,	O
and	O
various	O
domains	O
of	O
fundamental	O
or	O
applied	O
physics	O
)	O
,	O
they	O
are	O
made	O
to	O
be	O
usable	O
also	O
by	O
the	O
general	O
public	O
or	O
any	O
other	O
commercial	O
or	O
non-profit	O
organization	O
,	O
including	O
from	O
other	O
governments	O
,	O
simply	O
because	O
these	O
software	O
component	O
need	O
and	O
use	O
(	O
or	O
are	O
integrated	O
with	O
)	O
component	O
software	O
or	O
systems	O
which	O
were	O
initially	O
released	O
with	O
an	O
open-source	O
or	O
free	O
license	O
,	O
and	O
they	O
are	O
operated	O
by	O
organizations	O
that	O
also	O
have	O
a	O
commercial	O
status	O
.	O
</s>
