<p><strong>External Certificate Management on Ingress Gateway Controller</strong>.
Added a controller to dynamically load and rotate external certificates.</p></li><li><p><strong>Custom PKI Integration</strong>. Added Vault PKI integration with support for
Vault-protected signing keys and ability to integrate with existing Vault PKIs.</p></li><li><p><strong>Customized (non <code>cluster.local</code>) Trust Domains</strong>. Added support for
organization- or cluster-specific trust domains in the identities.