## Bug fixes

- Eliminate 503 errors caused by Envoy not being able to talk to the SDS Node Agent after a restart ([Issue 14853](https://github.com/istio/istio/issues/14853)).
- Fix cause of 'TLS error: Secret is not supplied by SDS' errors during upgrade ([Issue 15020](https://github.com/istio/istio/issues/15020)).
- Fix crash in Istio's JWT Envoy filter caused by malformed JWT ([Issue 15084](https://github.com/istio/istio/issues/15084)).
