The v2 xDS major version is deprecated and disabled by default (Envoy)

I was playing with EnvoyFilters in Istio and ran into this error:

ADS:LDS: ACK ERROR router~10.92.0.5~istio-ingressgateway-68d5fdd67f-ph996.istio-system~istio-system.svc.cluster.local-7 Internal:Error adding/updating listener(s) 0.0.0.0_8080: The v2 xDS major version is deprecated and disabled by default. Support for v2 will be removed from Envoy at the start of Q1 2021. You may make use of v2 in Q4 2020 by following the advice in https://www.envoyproxy.io/docs/envoy/latest/faq/api/transition