graphql-ws

Use the jsonMessageReplacer when automatically responding to a ping with a pong, on both the client and the server

Add an isProd option to the ws, uWebSockets.js and @fastify/websocket use-server helpers, matching the existing crossws option. It controls whether internal error messages are masked with Internal server error before reaching the client, defaulting to the NODE_ENV === 'production' check as before. This lets apps running in production keep reporting onConnect error messages to the client by opting out, or mask eagerly in non-production environments.

Fix the client closing an in-use socket when many subscriptions complete at once and a new one subscribes within the lazyCloseTimeout

Avoid an unhandled rejection when a subscription is disposed before the connection is acknowledged and the socket closes before the subscription releases its connection lock (for example, when the client is disposed while connecting and the WebSocket implementation delivers the close event on a microtask).