Ethan Lynn <xuanlangjian at gmail.com> wrote: > Hi Tony, > I submit a patch to use upper-constraints for review, https://review.openstack.org/#/c/347639/ . Let’s wait for the feedback and results. Why is it sent to liberty? isn’t master affected too? I see no constraints applied in master: https://github.com/openstack/heat/blob/master/tox.ini#L9 Ihar