<s>
The	O
IBM	B-License
Public	I-License
License	I-License
(	O
IPL	O
)	O
is	O
a	O
free	B-Application
open-source	B-Application
software	I-Application
license	O
written	O
and	O
occasionally	O
used	O
by	O
IBM	O
.	O
</s>
<s>
It	O
is	O
approved	O
by	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
(	O
FSF	O
)	O
and	O
described	O
as	O
an	O
"	O
open-source	B-Application
license	O
"	O
by	O
the	O
Open	O
Source	O
Initiative	O
.	O
</s>
<s>
The	O
IPL	O
differs	O
from	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
,	O
in	O
that	O
it	O
places	O
the	O
liability	O
on	O
the	O
publisher	O
or	O
distributor	O
of	O
the	O
licensed	O
software	O
code	O
.	O
</s>
<s>
The	O
reason	O
behind	O
this	O
is	O
to	O
facilitate	O
the	O
commercial	O
use	O
of	O
open-source	B-Application
software	I-Application
,	O
without	O
placing	O
the	O
contributor	O
at	O
risk	O
of	O
liability	O
.	O
</s>
<s>
Proponents	O
of	O
the	O
IPL	O
note	O
a	O
clearer	O
definition	O
of	O
responsibility	O
for	O
software	O
code	O
than	O
that	O
of	O
the	O
GPL	B-License
.	O
</s>
<s>
The	O
IPL	O
is	O
incompatible	O
with	O
the	O
GPL	B-License
because	O
it	O
contains	O
restrictions	O
not	O
included	O
in	O
the	O
GPL	B-License
,	O
specifically	O
a	O
choice	O
of	O
law	O
clause	O
stating	O
the	O
license	O
is	O
to	O
be	O
interpreted	O
under	O
the	O
laws	O
of	O
the	O
State	O
of	O
New	O
York	O
and	O
United	O
States	O
intellectual	O
property	O
law	O
.	O
</s>
<s>
According	O
to	O
the	O
FSF	O
,	O
"	O
This	O
is	O
a	O
free	B-Application
software	I-Application
license	O
.	O
</s>
<s>
The	O
IPL	O
differs	O
from	O
the	O
GPL	B-License
in	O
the	O
handling	O
of	O
patents	O
,	O
as	O
IPL	O
terminates	O
the	O
license	O
upon	O
patent	O
disputes	O
.	O
</s>
<s>
Examples	O
of	O
software	O
projects	O
licensed	O
under	O
the	O
IPL	O
include	O
Postfix	B-Application
,	O
OpenAFS	B-Application
,	O
and	O
the	O
now-unmaintained	O
Jikes	B-Application
compiler	O
for	O
Java	B-Language
.	O
</s>
