Mastra 1.0 has officially launched after a successful beta phase, with hundreds of teams already using it in production. The release includes 94 fixes and several new features like server adapters and composite storage. Key enhancements focus on simplifying deployment, stabilizing APIs, and improving observability. Notable projects like Replit, PayPal, and Marsh McLennan are utilizing Mastra, which has gained significant traction, surpassing Gatsby’s growth in its early years with over 300,000 weekly npm downloads and approximately 19,800 GitHub stars. One of the biggest changes in 1.0 is the introduction of server adapters, allowing users to run Mastra within existing server frameworks like Express and Fastify. This flexibility reduces deployment overhead by integrating Mastra’s functionality directly with existing applications. Composite storage is another major feature, enabling per-domain storage configurations, which helps optimize performance and cost by aligning storage backends with specific domain requirements. Mastra 1.0 also includes support for AI SDK v6, ensuring compatibility with the latest models and tools. While most updates are straightforward, there are some breaking changes, such as changes to method signatures and accessors, which are handled through codemods for easier migration. The article emphasizes the importance of community feedback in shaping the final release, reflecting a collaborative approach to development. Getting started with Mastra 1.0 is straightforward for both new projects and those upgrading from earlier versions, thanks to automated transformation tools provided in the codemod.