<s>
The	O
Historical	B-License
Permission	I-License
Notice	I-License
and	I-License
Disclaimer	I-License
(	O
HPND	B-License
)	O
is	O
an	O
open	O
source	O
license	O
,	O
approved	O
by	O
the	O
Open	O
Source	O
Initiative	O
(	O
OSI	O
)	O
and	O
verified	O
as	O
GPL-compatible	O
by	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
.	O
</s>
<s>
It	O
is	O
unique	O
among	O
the	O
OSI	O
's	O
licenses	O
because	O
of	O
the	O
choices	O
it	O
allows	O
in	O
its	O
construction	O
;	O
it	O
lets	O
the	O
licensor	O
pick	O
anywhere	O
from	O
0-2	O
warranty	O
disclaimers	O
,	O
whether	O
they	O
want	O
to	O
prohibit	O
the	O
author	O
's	O
name	O
from	O
being	O
used	O
in	O
publicity	O
or	O
advertising	O
surrounding	O
a	O
distribution	O
(	O
like	O
in	O
the	O
BSD	B-Operating_System
License	I-Operating_System
)	O
,	O
and	O
other	O
spelling	O
and	O
grammar	O
options	O
.	O
</s>
<s>
Besides	O
this	O
,	O
the	O
license	O
can	O
be	O
almost	O
functionally	O
identical	O
to	O
the	O
new	O
,	O
3-clause	O
BSD	B-Operating_System
License	I-Operating_System
(	O
if	O
the	O
option	O
for	O
the	O
no-promotion	O
clause	O
is	O
exercised	O
)	O
,	O
or	O
the	B-License
MIT	I-License
License	I-License
(	O
if	O
the	O
option	O
for	O
the	O
no-promotion	O
clause	O
is	O
not	O
exercised	O
)	O
.	O
</s>
<s>
Today	O
,	O
it	O
is	O
most	O
popular	O
to	O
choose	O
either	O
the	O
new	O
3-clause	O
BSD	B-Operating_System
License	I-Operating_System
or	O
the	B-License
MIT	I-License
License	I-License
to	O
meet	O
the	O
licensing	O
needs	O
of	O
the	O
developer	O
.	O
</s>
