We have configured our Big Data Store at 10.9.1 and registered it with our enterprise Portal/Hosting Server/DS, etc. also at 10.9.1. We have it talking to our unfederated GeoEvent Server also at 10.9.1 and it's working well. Question is, we want to use feature service webhooks, which seem to only be available at 11.x currently. Can we register our 10.9.1 BDS with an 11.1 enterprise Portal/Hosting Server so we can use service webhooks, or does the BDS "need" to be at 11.1, as well? I'm guessing our GeoEvent server might also need to be at 11.1 if so. Any input is appreciated. Early stages and don't want to waste time connecting 10.9.1 to 11.1 portal if it won't work.