 to Istio 1.19.x, you need to consider the changes on this page.
These notes detail the changes which purposefully break backwards compatibility with Istio <code>1.18.x.</code>
The notes also mention changes which preserve backwards compatibility while introducing new behavior.
Changes are only included if the new behavior would be unexpected to a user of Istio <code>1.18.x.</code></p><h2 id=use-the-canonical-filter-names-for-envoyfilter>Use the canonical filter names for EnvoyFilter</h2><p>If you are using