 follow along with!</p><h2 id=sidecar-networking-changes>Sidecar Networking Changes</h2><p>In previous Istio releases, Istio has rewritten pod networking to trap traffic from <code>eth0</code> and send it to applications on <code>lo</code>. Most applications bind to both interfaces and don’t notice any difference; however some applications are specifically written to only expect specific traffic on either interface (e.g. it’s common to expose admin endpoints only on <code>lo</code> and never over <code>