Download the installer for your operating system or run
oc adm release extract --tools registry.ci.openshift.org/ocp/release:4.3.0-0.nightly-2021-02-20-191327
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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:d40ec1e518e9016b5a02f64cf751427fd8b8b59d9ae88ab7b08061b578ccc020: unauthorized: authentication required
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