 MERGE, DELETE) and proxyVersion set which can cause the EnvoyFilter not to be applied during an upgrade. Using the INSERT_FIRST or ADD option or setting the priority may help in ensuring the EnvoyFilter is applied correctly.</td></tr><tr><td>Level</td><td>Warning</td></tr></tbody></table></div><p>This message occurs when an <code>EnvoyFilter</code> does not have a priority and uses a relative patch operation (<code>INSERT_BEFORE/AFTER</code>, <code>REPLACE</code>, <code>MERGE</code>, <code>DELETE</code>) a