On 02/02/2017 06:00 PM, notifications(a)fedoraproject.org wrote: > +# The default is to turne for z13 (newer hardware), but build for > zEC12. +BuildFlags="-march=zEC12 -mtune=z13" Per <https://fedoraproject.org/wiki/Architectures/s390x>;, we still support older architectures: · IBM system Z models z9 or newer(64-bit). Can we really upgrade to z12 at this point?