tio version</th><th>Envoy release branch</th></tr></thead><tbody><tr><td>1.22.x</td><td>release/v1.30</td></tr><tr><td>1.21.x</td><td>release/v1.29</td></tr></tbody></table><p>You can find the precise Envoy commit used by Istio <a href=https://github.com/istio/proxy/blob/release-1.22/WORKSPACE#L26>in the <code>istio/proxy</code> repository</a>: look for the <code>ENVOY_SHA</code> variable.</p></article><nav class=pagenav><div class=left><a title="How we handle security vulnerabilities." href=/v1.22/docs/rel