Download the installer for your operating system or run
oc adm release extract --tools registry.ci.openshift.org/ocp/release:4.2.0-0.ci-2021-01-03-162040
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Unable to show full changelog: could not generate a changelog: error: unable to read image registry.svc.ci.openshift.org/ocp/release@sha256:23955b780e78ee91109ce786e267383296b56b445aabbd1d90379c0c2583524a: unauthorized: authentication required
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