March 2026 monthly summary for the dart-lang/webdev repo focusing on stabilizing SSE connection lifecycle in the web development service. Delivered a critical bug fix to ignore late disconnects after new connections in SseHandler, improving reliability and developer experience when multiple connection requests occur in quick succession.

February 2026 — dart-lang/tools: Delivered the Dart Contribution Style Guide configuration and guidelines to standardize contributions, reduce PR review time, and improve onboarding. Implemented a robustness fix for contribution tooling to handle out-of-order disconnects and reconnects (commit 06493ded8ca27996d979f9f903d2bc24a1215064), enhancing reliability of contributor workflows. This work improves code quality, consistency, and developer velocity by providing clear standards and resilient tooling.