DocumentDB 1.0 is now generally available as an open-source document database built on PostgreSQL. The MIT-licensed project combines a PostgreSQL extension with a gateway that translates MongoDB wire-protocol requests into PostgreSQL operations, allowing many existing drivers, tools and queries to work without changes.
The release supports PostgreSQL 15 through 18 in container images, with Linux packages for PostgreSQL 17 and 18. It also includes a Kubernetes operator. The 1.0 work emphasizes security and stability while addressing indexing, aggregation and geospatial-query issues. Microsoft introduced the project in 2025, and it later joined the Linux Foundation with support from several database companies.
Compatibility is not necessarily complete. Community discussions have raised questions about how closely alternative implementations match MongoDB behavior, while one open issue reports higher query latency than MongoDB 9.0.4 in several workloads. Those results have not been independently verified. An early external comparison also found different strengths for DocumentDB and FerretDB rather than a universal winner.
The familiar name may cause confusion with Amazon DocumentDB and other similarly named products. Developers evaluating the release should test their own queries and latency requirements, then review the documented upgrade paths and known issues. The project still has to finalize its long-term support and versioning policy.