July 2025 performance summary for svix/svix-webhooks focused on Go HTTP client reliability and robust resource management. Delivered a concrete reliability improvement in the HTTP request/retry path by buffering the request body in memory and recreating it for each retry, enabling safe retries even with empty bodies. Added tests to lock in retry behavior and prevent regressions. Refactored error handling around closing request bodies and writing responses, ensured the response body is always closed, and improved logging and linting for better observability and maintainability. These changes reduce retry-related failures, improve runtime stability, and enhance code quality for future webhook delivery improvements.