Transitive Grace Period Public Licence ("TGPPL") v. 2.0 Rough Draft 1
This work is under GPLv3 with the following added permission:
Transitive Grace Period EXCEPTION
Version 0.1, 2015-03-18Z
Copyright © 2015 Zooko Wilcox-O'Hearn
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
This Transitive Grace Period Exception ("Exception") is an additional permission under section 7 of the GNU General Public License, version 3 ("GPLv3"). It applies to a given work (the "Work") that bears a notice placed by the copyright holder of the file stating that the file is governed by GPLv3 along with this Exception.
The purpose of this Exception is to allow you to delay the GPL-licensing of a derived work of the Work for a limited period of time.
Grant of Additional Permission:
When conveying a work based on the Program under sections 5 or 6 of GPLv3, you have permission to delay compliance with the requirements of those sections, including the requirement to license the entire work as a whole under GPLv3 and the requirement to convey Corresponding Source under GPLv3, for a period of up to 12 months from the time of your conveying the work, provided that you grant this same Exception to your downstream recipients when licensing your work under GPLv3 following the period of delay.