The new Solid Query client is a WunderGraph API integration that allows developers to build next-generation API and Microservices infrastructure using the Solid.js ecosystem. The client brings typesafe query, mutation, and subscription capabilities to Solid.js, enabling developers to leverage WunderGraph's features in their Solid.js applications. The release is still in beta, but it offers a powerful tool for building real-time apps with subscriptions, live queries, and mutations, and provides an opportunity for feedback and collaboration with the WunderGraph team and TanStack.