* Fabian Arrotin: > Thanks a lot for the announce, really appreciated to be aware of what's > coming . > I'd (myself) like to see some kind of announces being sent on the public > list so that everybody can follow what's being worked on and so what to > expect in Stream packages (as of course there is no official public > Release Notes -yet- , appearing for RHEL, so downstream) I'm going to let others comment on that. > Now back to the x86 cpu infra : does that mean that to *build* Stream > packages (like gblic) we need at least a minimum instructions set in the > CPU (builder side that is) ? glibc itself continues to use IFUNCs on x86-64 to select optimized function implementations, based on CPU capabilities. This means that baseline x86-64 support remains sufficient for building the glibc package. I can image that in the future, there will be some packages which build shared objects for x86-64-v3 (in addition to baseline x86-64, with run-time selection later), and which test all implementations at build time. In such a scenario, the builders would have to support x86-64-v3. In related news, we plan to build CentOS Stream 9 with a x86-64-v2 baseline: Building Red Hat Enterprise Linux 9 for the x86-64-v2 microarchitecture level <https://developers.redhat.com/blog/2021/01/05/building-red-hat-enterprise-linux-9-for-the-x86-64-v2-microarchitecture-level/> Thanks, Florian -- Red Hat GmbH, https://de.redhat.com/ , Registered seat: Grasbrunn, Commercial register: Amtsgericht Muenchen, HRB 153243, Managing Directors: Charles Cachera, Brian Klemm, Laurie Krebs, Michael O'Neill