- Carry over RES_OPTIONS from ifcfg-ethX files to /etc/resolv.conf
        (#202923)
    - Clean up Requires tags for devel packages
    - Allow SEARCH variable in ifcfg files to override search path (#454152)
    - Do not down interface if there is an active lease (#453982)
    - Clean up how dhclient-script restarts ypbind
    - Set close-on-exec on dhclient.leases for SELinux (#446632)