Redshift clusters should have 'allow version upgrade' enabled

redshift
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Description

Confirm AllowVersionUpgrade is enabled so Redshift clusters can automatically upgrade to the latest version.

Rationale

Enablement allows the latest version to automatically install, deploying the most recent bug fixes and security patches.

Remediation

From the console

Follow the [Cluster maintenance][4] docs to permit automatic upgrade for your clusters.

From the command line

  1. Run modify-cluster to set allow-version-upgrade for a cluster.

    allow-version-upgrade.sh

        aws redshift modify-cluster
	    --cluster-identifier cluster-id-name
	    --allow-version-upgrade