Kubernetes Ingress has been the standard method for routing HTTP(S) traffic into clusters but has limitations with complex use cases.
The Gateway API is introduced as a modern, expressive standard to replace Ingress over time.
Key differences include support for multiple protocols, native traffic splitting, standardized cross-namespace delegation, role separation, and extensibility.
Migration to Gateway API involves evaluating controller support, starting with HTTPRoute, testing functionality, incremental migration, and automating translation.