[Question] Do you use GPLv2 or GPLv2+?

[topin89]

In process of adding zstd support in Valgrind, authors asked if you use GPLv2 or "GPLv2 or later". Mostly because Valgrind itself is GPLv2+, and authors prefer this license over BSD if possible.

Can you clarifiy, do you allow to license Valgrind under GPLv3 or later license? I know that you can use it in GPLv3 code using BSD license, and mostly being pedantic. Still, it would be nice to have clarification