Microsoft's open-source document database, DocumentDB, has joined the Linux Foundation to provide a vendor-neutral environment for developers seeking an alternative to MongoDB. It operates under the MIT license, allowing developers to use PostgreSQL interfaces for enhanced JSON support or MongoDB compatibility. Microsoft aims for "100% compatibility with MongoDB drivers" to facilitate user transitions. DocumentDB has grown rapidly since its inception, gaining nearly 2,000 stars on GitHub and attracting PostgreSQL enthusiasts. It combines PostgreSQL capabilities with improved JSON/BSON support and maintains compatibility with existing MongoDB drivers and tools. By joining the Linux Foundation, DocumentDB establishes an independent identity and invites contributions from various database providers, ensuring alignment with open-source PostgreSQL. A Technical Steering Committee (TSC) has been formed to oversee project decisions, while maintainers will ensure code quality and adherence to standards. The Linux Foundation will help maintain DocumentDB's neutrality and developer-focused approach as it expands.