Azure Cosmos DB Blog
The latest news, updates and technical insights from the Azure Cosmos DB team
Latest posts
Azure DocumentDB is Now Generally Available
Azure DocumentDB, a fully managed MongoDB-compatible database service based on the open-source DocumentDB governed by the Linux Foundation, is now generally available. It was formerly known as vCore-based Azure Cosmos DB for MongoDB. Azure DocumentDB gives developers a multi-cloud, first-party document database on Azure that preserves MongoDB skills and tooling, improves portability through open source, and delivers clear cost control with a simple compute and storage-based model. At Ignite, we announced the AI-powered Index Advisor, Premium storage v2 disks, and the VS Code migration extensio...
Announcing: GA of Cosmos DB in Microsoft Fabric and Cosmos Mirroring
We’re excited to announce that Cosmos DB in Microsoft Fabric and Cosmos DB Mirroring are now Generally Available, uniting your operational and analytical data in one platform. You can now analyze live Cosmos DB data directly in Fabric—no complex or costly ETL required. Data stays in sync in OneLake, providing a single source of truth for real-time and historical insights. Write queries using T-SQL from a SQL Endpoint or use Python and Spark Notebooks in Fabric.  As a distributed NoSQL database Cosmos DB in Fabric brings support for semi or unstructured data to analytics and ML workloads as well as a host of a...
Introducing the Azure Cosmos DB MCP Toolkit: Empowering AI Agents with Azure Cosmos DB Intelligence
We're excited to announce the Azure Cosmos DB MCP Toolkit in public preview. This open-source implementation of the Model Context Protocol (MCP) gives AI agents and LLMs direct, secure access to Azure Cosmos DB. The toolkit bridges intelligent applications and globally distributed databases, enabling AI agents to query, search, and understand data autonomously. The MCP Toolkit seamlessly integrates with Microsoft Foundry, a platform for building intelligent agents, AI workflows, and deploying AI models at scale. Developers can experiment, orchestrate, and manage AI applications from development to production. ...
What’s New in Semantic Search for Azure Cosmos DB at Ignite 2025
We’re excited to introduce new capabilities and performance improvements for vector and full-text search in Azure Cosmos DB. These updates make it easier for developers and architects to build semantic search experiences and generative AI applications on the world’s most scalable NoSQL database. Note: These new capabilities are actively rolling out. As a result, they may not yet be available in all Azure regions. Float16 Vector Support Save up to 50% on storage while maintaining high recall. You can now store and index vectors in Float16 format, reducing storage costs and memory usage while keeping...
Azure Cosmos DB Migration from MongoDB (RU) to Azure DocumentDB Is Now Generally Available!
After a successful public preview, we’re excited to announce the General Availability (GA) of online migration from RU-based Azure Cosmos DB for MongoDB to Azure DocumentDB (with MongoDB compatibility). This capability makes migration fast, simple, and cost-free—all through the Azure portal. Why This Matters If you’re running workloads on RU-based Cosmos DB for MongoDB, you can now move to Azure DocumentDB without downtime or extra cost. The GA release ensures a seamless experience: everything happens online, directly in the Azure portal, with no hidden charges or additional tools. What You Get Migration is d...
How Kraft Heinz achieved 1,400x faster data lineage with Azure DocumentDB’s DiskANN vector search and hybrid search
This article is authored by Gurvinder Singh, Principal Cloud Engineer at The Kraft Heinz Company. ICYMI: Hear how Kraft Heinz built an AI-powered data lineage solution leveraging Azure DocumentDB hybrid search and graph querying capabilities - watch the Ignite session here: Move fast, save more with MongoDB-compatible workloads on DocumentDB The enterprise-scale challenge: Data lineage across 50+ interconnected systems At Kraft Heinz, we operate one of the world’s largest CPG data ecosystems with more than 200 brands and 50+ interconnected enterprise systems—including SAP, Oracle, Snowflake, and Po...
Configuring Advanced High Availability Features in Azure Cosmos DB SDKs
Azure Cosmos DB is engineered from the ground up to deliver high availability, low latency, throughput, and consistency guarantees for globally distributed applications. As mission-critical systems increasingly rely on Cosmos DB for performance at scale, understanding and configuring advanced high availability features becomes essential. Advanced high availability capabilities in Azure Cosmos DB Azure Cosmos DB provides a rich set of features to support high availability and resilience: These capabilities form the backbone of Cosmos DB's 99.999% availability SLA. To fully realize the ...
IntelePeer supercharges its agentic AI platform with Azure Cosmos DB
Reducing latency by 50% and scaling intelligent CX for SMBs This article was co-authored by Sergey Galchenko, Chief Technology Officer, IntelePeer, and Subhash Ramamoorthi, Director, IntelePeer AI Hub. ICYMI: Discover how IntelePeer enhances agent intelligence and powers their multi-agent applications - watch the Ignite session here: From DEV to PROD: How to build agentic memory with Azure Cosmos DB. You don’t need to be an AI expert, software engineer, or data scientist to understand the importance of system reliability and performance in digital customer service platforms. If you’ve ever tried to...
From Real-Time Analytics to AI: Your Azure Cosmos DB & DocumentDB Agenda for Microsoft Ignite 2025
Microsoft Ignite 2025 is your opportunity to explore how Azure Cosmos DB, Cosmos DB in Microsoft Fabric, and DocumentDB power the next generation of intelligent, planet-scale applications. Whether you’re building real-time analytics pipelines, optimizing MongoDB-compatible workloads, or implementing AI-driven architectures, these technologies are at the heart of modern innovation. This year’s sessions feature hands-on labs, advanced breakouts, and inspiring customer stories from companies like Sam’s Club, Veeam, and Sitecore, showing how they leverage Azure Cosmos DB and DocumentDB to deliver speed, re...