June 2026 monthly summary for XTLS/Xray-core. Focused on stabilizing the Hysteria Client by preventing panics in cnc.Connection handling and improving dialing safety over UDP hop ports, delivering higher reliability for UDP-based connections and reducing crash scenarios. Implemented via commit 153468dc86e8d2cdd5e1908f68c17faf2d0b4b47 (co-authored-by: LjhAUMEM). Overall impact: fewer crash scenarios, more stable client behavior, and improved uptime for users relying on the Hysteria transport. Demonstrated skills: Go concurrency/safety, network transport hardening, code review and collaborative fixes with cross-team collaboration.

January 2026 (Month: 2026-01) — XTLS/Xray-core: Delivered key features for geo-aware routing and startup performance, fixed DNS parsing robustness, and introduced a caching mechanism for the MPH domain matcher. These efforts improved memory footprint, startup times, DNS reliability, and geolocation accuracy, aligning with performance and scalability goals for production deployments.

December 2025 monthly summary for XTLS/Xray-core focusing on memory-mapped file I/O optimization to reduce RAM usage during file reads on non-Windows and non-WASM platforms, with a robust mmap fallback for environments without mmap support. Aligns with ongoing performance/efficiency goals and issue tracking for better traceability.

January 2025 monthly summary for XTLS/Xray-core focusing on stability and compatibility following gVisor upgrade. Implemented a TUN interface stability fix to ensure compatibility with the newer gVisor library, addressing nil packet checks and UDP connection creation to prevent runtime failures and improve networking reliability in containerized environments.

Month: 2024-11 — Focused on delivering observability enhancements by adding Online User Statistics Tracking in core and a policy-based configuration in docs. The work enables real-time monitoring of active users and IP collection via a dedicated API, with bilingual documentation to support global usage.