Network Load Balancer now supports TLS ALPN Policies
Elastic Load Balancing now supports Application-Layer Protocol Negotiation (ALPN) policies on Network Load Balancers. ALPN is a TLS extension supported by all major browsers that enables negotiation of the protocol used after establishing a TLS connection, such as HTTP/2. Using ALPN policies, you can now offload your application’s TLS HTTP/2 traffic decryption/encryption to the Network Load Balancer, improving your service security posture and reducing operational complexity.
Source:: Amazon AWS