No, I think latest is more less a direct copy of the latest successful build on jenkins. That would be a no-go to offer as the vm to use. VMs have have releases as well. And in the same directory there is a stable.zip which is the right one. And it is from september. Everything else is in the hands of esteban.
this :)
but seriously: I���ve been having some problems to promote a newer vm as stable, concretely in the pharo-minimal step. I wanted to have new one for Pharo4, but I���m not arriving either��� so I will move it as soon as I find a solution, I���m sorry :(
Esteban