May 2026 monthly summary for PX4-Autopilot: Delivered Zenoh Publisher Configuration Enhancements to enable flexible, per-publisher publish settings with improved reliability and performance. The update introduces per-publisher overrides for zenoh publisher options (reliability, priority, congestion control, express mode), exposed through configuration files and YAML (dds_topics.yaml), with a new toggle (ZENOH_PUB_OPTION_OVERRIDE) to enable overrides on targets with sufficient flash memory. Documentation was updated to reflect usage. The changes reduce configuration overhead for multi-publisher scenarios and improve timely, reliable delivery of critical messages, contributing to safer and more efficient flight control. Co-authored by the team; commits include the zenoh feature work with hash 0ffc7f0f8a43b4ce61f58bfac8295d45a425d764.

Concise monthly summary for 2026-04 focused on delivering robust Zenoh integration across two key repositories, with emphasis on portability, reliability, and resource lifecycle management. Highlights include a portability fix for NuttX and comprehensive Zenoh lifecycle improvements for PX4 Autopilot, contributing to increased stability in embedded deployments and safer mission-critical operation.