This is now available in the latest Service Bus trigger version: https://github.com/Azure/azure-functions-servicebus-extension/issues/15
Just tracking another issue to ensure can be leveraged outside of .NET https://github.com/Azure/azure-functions-servicebus-extension/issues/65
Thank you for voting on this issue and bringing it to our attention. We are planning to add alerting for this and many other App Service operations. We will update this ticket when the feature is available.Thomas Ardal commented
Very much agree. Adding a webhook or a PostSwap script or similar would be an awesome feature. Would make it possible to call Slack, Teams and similar on releasing to production (as already mentioned).