Monthly summary for 2026-04 (kgateway-dev/kgateway). Key features delivered: OIDC Discovery Deduplication and Performance Optimization, which deduplicated concurrent OpenID Connect provider discovery requests to prevent redundant HTTP calls, reducing latency and resource usage. Major bugs fixed: Listener Address Validation and Robustness, where computeListenerAddress now correctly returns errors for invalid bind addresses, increasing robustness of listener creation. Overall impact: these improvements enhance authentication flow performance, reliability, and operational stability, while reducing unnecessary network calls. Technologies/skills demonstrated: Go concurrency optimization, OpenID Connect flows, robust error handling, code review and signed commits. Business value: improved scalability, uptime, and user trust through faster, more reliable auth and listener setup."