https://urldefense.proofpoint.com/v2/url?u=https-3A__access.redhat.com_errata_RHEA-2D2018-3A2675-3Fsc-5Fcid-3D701600000006NHXAA2&d=DwIBAg&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbBYBgsCHS7vSr83lHQ-aa58eXICk1KkzZlAHgohLRRrX&m=npMYU7Q2h7nYaJpeOzwh-HUOxe305sH84eJAPK_ji0o&s=MWH8SS53PzZJ-R0a9YlwOg-g1xEUvoOkIU0cN3vIaGA&e=
suggests that there should be a
 	microcode_ctl-1.17-33.9.el6_10.src.rpm
and related packages, but yum doesn't seem to be able to find them.

Though the 1.77-33.3 package omits most of the intel microcode, saying 
"check with your hardware vendor", so I don't know how important the new version will be.

Thanks,
-- 
Andrew C. Aitchison					Cambridge, UK
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