Hi,
> Would that make it impossible to run fedora on sse-only i686
CPUs?
Yes, but test coverage for those CPUs is already rather poor, so I don't
expect them to work anymore.
See other replies, people are running such machines.
Given x86_64 exists for many years and even embedded (see aarch64) is
moving to 64bit these days i386 clearly is for old legacy hardware. If
you need performance you don't run a i386 machine.
So, why bother raising the bar for i386 by requiring more cpu features?
It doesn't help anyone.
cheers,
Gerd