End of Life (EOL) . Security support for version 5.1 officially ended in January 2022.
Fully supported and integrated into MongoDB Atlas, where users can opt-in to these rapid release features on dedicated clusters. New Features in MongoDB 5.1 mongodb 5.1 download
To download , you can access it through the MongoDB Download Center as a development release. It is important to note that MongoDB 5.1 was a Rapid Release , meaning it was intended for development and testing of new features rather than long-term production use. Key Download Information for MongoDB 5.1 Release Type: Rapid Release (Development only). End of Life (EOL)
Available as a "Development Release" via the MongoDB Community Downloads page. New Features in MongoDB 5
Released in November 2021, version 5.1 introduced several key innovations focused on scalability and analytics: MongoDB 5.1.0 is released