HTTP/3 is a new evolution of the Hypertext Transfer Protocol (HTTP) designed to reduce latency and increase resilience over lossy networks. It uses QUIC and UDP instead of TCP, providing low-latency and resilient connections for the World Wide Web. HTTP/3 has several benefits compared to HTTP/2, including increased resilience with QUIC's fast "Zero Round Trip Time Resumption" (0-RTT) reconnections and reduced latency when streaming data. Implementing HTTP/3 in applications is complex without an ingress, proxy, or API gateway that fully supports the final HTTP/3 RFC specification. However, many organizations are adopting HTTP/3 using Envoy Proxy-powered ingresses or API gateways to provide secure and efficient connections for their users.