For Approval: Transitive Grace Period Public Licence, v1.0

Russ Nelson nelson at
Thu Feb 26 03:29:13 UTC 2009

Tzeng, Nigel H. writes:
 > It looks as if he is already dual licensing GPL and TGPPL
 > for his work (unless I misread something on his site).

Okay, so you have it under the GPL, which means no proprietary use at

You also have it under the TGPPL, which means that you may publish the
code under any license you want, as long as you also publish the code
under the TGPPL after a year.  The trouble is that you could publish
the code under the OSL (and the TGPPL is the OSL with one sentence
changes), which effectively removes the transitive nature of the TGPPL.

Ahhhh, I see.  It *is* still transitive, in that anybody who gets a
copy of the TGPPL'ed version still has permission to take it
proprietary for a year, whereas with a waiver, they don't have to
grant that right.

I still don't see that the value of this license (as opposed to simply
granting a waiver) justifies the cost of Yet Another License to the

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