[pacman-dev] License for new contributions?

[edmeister46 at hushmail.com]

Hello pacman team!

I've been following development for quite some time, and would like 
to submit my package signing patches for review.

However, since some of the files are entirely new, they would have 
a license header. I would like to know under what license should I 
release my work.

I bring this up because during this time I overlooked the inclusion 
of the rankmirrors script, which I've now noticed to be GPL v3 code.

Should my files be GPL v2 or v3?

Thank you for your time!
Ed