Updating link for updating heterogeneous and release notes

Author: kelbrown20

modules/mixed-arch-upgrade-mirrors.adoc

@@ -19,4 +19,4 @@ You must perform an explicit upgrade command to upgrade your existing cluster to
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 $ oc adm upgrade --allow-explicit-upgrade --to-image <image-pullspec> <1>
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-<1> You can access the `image-pullspec` object from the link:https://mirror.openshift.com/pub/openshift-v4/multi/clients/ocp/4.11.0-multi-rc.6/[mixed-arch mirrors page] in the `release.txt` file.
+<1> You can access the `image-pullspec` object from the link:https://mirror.openshift.com/pub/openshift-v4/multi/clients/ocp/latest[mixed-arch mirrors page] in the `release.txt` file.