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

Bruce Perens bruce at
Sun Feb 1 05:08:52 UTC 2009

zooko wrote:
> When such people come to you and ask "Would it be a good idea to 
> release my software under the TGPPL?", it would be perfectly 
> appropriate for you to advise them against.  However, when people come 
> to you and ask "Is the TGPPL an open source licence?" it would be 
> inappropriate for you to reply to them "Never heard of it.".
Let's hope that my memory for acronyms is good :-)

For a long time, I have been able to point to a license and acknowledge 
that it complies with the Open Source Definition, independent of whether 
or not the OSI has approved it.

I counsel my own clients to use no more than four licenses across all of 
their Open Source work. The four are compatible with each other and 
satisfy a range of different business purposes. There is some argument 
about which four to use, but not about what they do. IMO, all other than 
the four you happen to use are close to redundant and provide little value.



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