 response codes with headers that 1.7.x proxies reject. To fix this, upgrade all your proxies (gateways and sidecars) to 1.7.5+ as soon as possible. (<a href=https://github.com/istio/istio/issues/29427>Issue 29427</a>, <a href=https://github.com/istio/istio/pull/28450>More information</a>)</p></div><nav class=pagenav><div class=left><a title="Istio 1.7.6 patch release." href=/v1.25/news/releases/1.7.x/announcing-1.7.6/ class=next-link><svg class="icon left-arrow"><use xlink:href="/v1.25/img/icons.svg#left-a