March 2025 monthly summary for cloudflare/quiche: Key features delivered include migrating the keylogging capture decision from a Cargo feature flag to a runtime configuration flag (--cfg capture_keylogs), ensuring the decision is evaluated at the final binary level to prevent unintended enablement by intermediate dependencies. This migration preserves backward-compatibility, providing a smooth transition path. Major bugs fixed: none reported in March 2025. Overall impact: improved security and governance by enforcing runtime control over sensitive behavior, reduced risk of accidental keylog capture, and strengthened deployment reliability. Technologies/skills demonstrated: Rust runtime configuration patterns, cfg flags, Cargo feature management, integration work with tokio-quiche, careful migration strategy, testing and validation across build and runtime.