The previously named Service Bus Relay service is now called Azure Relay. You can continue to use this service as usual. The Hybrid Connections feature is an updated version of a service that's been transplanted from Azure BizTalk Services. WCF Relay and Hybrid Connections both continue to be supported.
Pricing
This section answers some frequently asked questions about the Relay pricing structure. You also can see the Azure Support FAQs for general Azure pricing information. For complete information about Relay pricing, see Service Bus pricing details.