Fedora 23 configs are reverted back to use yum again. To be on pair with Koji
Lot of fixes for --new-chroot option
Mockchain can download SRPM from Dropbox
DNF does not install weak dependencies by default
When cleaning up chroots, mock now exclude mountpoints
When you build using DNF (rawhide) on systems, which does not have DNF (EL6, 7), mock will print warning, wait for confirmation, tell you how to suppress this warning next time. Nevertheless this warning is not fatal and Mock can continue using YUM.
Previously package_state plugin always used YUM, now it use DNF when chroot is configured to use DNF.
When file /usr/bin/yum-deprecated is present on your machine, then variable config_opts['yum_command'] is set to this value by default.