Azure Cosmos DB Blog
The latest news, updates and technical insights from the Azure Cosmos DB team
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Join the Conversation: Call for Proposals for Azure Cosmos DB Conf 2025!
Are you passionate about Azure Cosmos DB? Do you have insights, experiences, or innovations that the developer community would love to hear? Now is your cha...
Latest posts
Updates to Azure Cosmos DB’s Portal Networking Settings
We are happy to share with you an update to the Azure Cosmos DB networking configuration options within the Azure Portal. This update introduces a split in the IP address list, now presented as two distinct categories: user IP addresses and Portal Middleware IPs. Managing IP access control policies is essential for maintaining a secure environment.  Earlier this year, new Portal IP addresses were introduced as part of the Azure Cosmos DB portal service upgrade. Now, you can easily update these addresses with a single click in the portal. Understanding the Changes This update aims to give users a more streamlin...
Debug Queries More Efficiently with the Improved Error Messaging in Azure Cosmos DB Data Explorer
Azure Cosmos DB Data Explorer is a web-based tool available in the Azure Portal that allows you to manage data, as well as track and fix issues with your queries. In this blog post, we will focus on some of the new features in data explorer that improve the error messaging in the query editor, making it easier for you to debug queries in Azure Cosmos DB. These were developed in response to user feedback through our NPS survey. To share feedback, click the Feedback icon in the Azure portal on any Cosmos DB blade, or submit it through the Net Promotor Score (NPS) survey. Improving the error message for complete d...
Meet the Winners | Microsoft Developers Azure AI & Azure Cosmos DB Learning Hackathon
Azure Cosmos DB powers some of the world’s most popular intelligent apps like ChatGPT. In a recent hackathon, Over 9,500 developers engaged with Azure Cosmos DB and Azure AI services, making it one of the most popular on Devpost, ranking in the top 0.2% of all Devpost hackathons. Participants explored AI fundamentals and built their own AI applications using Azure. We're excited to showcase the top three winners, who leveraged Azure Cosmos DB and Azure AI to address diverse use cases, including acing job interviews, streamlining video editing, and offering insightful dietary recommendations. We also want to h...
Enhancing Data Explorer: Custom Columns, Filter History, and Query Views Explained
Managing large amounts of data is exciting. As a dataset grows in complexity and size, finding efficient ways to sort and analyze this info becomes more important. Azure Cosmos DB Data Explorer is a tool to query, review, and manage your data. We’ve heard from your feedback in our NPS survey that there’s a need for more options to dive deeper into your data within Data Explorer when using filters. Users have often faced challenges in customizing their data views, sorting their Items and quickly reapplying previous filters. These pain points can lead to inefficiencies and frustrations, especially when time is tig...
Introducing RBAC Authentication and more for the Azure Cosmos DB Integrated Cache
We’re excited to announce new features for the Azure Cosmos DB integrated cache! The integrated cache is built into the dedicated gateway, and now there’s new ways to authenticate your requests. Security is top of mind for many organizations, and you can now use Role-Based Access Control (RBAC) with Microsoft Entra ID to authenticate to the dedicated gateway, eliminating the security risks and complications that come with key-based authentication. Additionally, there’s a new request option that gives you fine grained control over which requests populate the integrated cache. RBAC authentication with Microsof...
Microsoft DiskANN in Azure Cosmos DB Whitepaper
We are excited to publish a new whitepaper titled, Microsoft DiskANN in Azure Cosmos DB, where we examine the impressive capabilities of Microsoft DiskANN, a state-of-the-art indexing system designed for accurate and cost-efficient vector search at any scale. We start off with a review of key vector search and database concepts, then follow by describing Microsoft DiskANN and how it works. We conduct comparisons against other popular vector indexing algorithms on two datasets and demonstrate how Microsoft DiskANN requires up to 10x lower memory, which is critical to making vector search more cost-effective and...
Announcing Private Preview: VS Code Extension of vCore-based Azure Cosmos DB for MongoDB
Overview We're excited to introduce a new VS Code extension for vCore-based Azure Cosmos DB for MongoDB ! This tool allows users to connect, query, and manage vCore-based Azure Cosmos DB for MongoDB directly within VS Code, streamlining your workflow. Limited Private Preview We’re currently offering a limited private preview of the VSCode extension for vCore-based Azure Cosmos DB for MongoDB. Features Supported What to Expect As this is a private preview release, you might encounter some rough edges. But your feedback is crucial ...
Introducing New Storage Sizes for vCore-Based Azure Cosmos DB for MongoDB: Unlock More Capacity and Performance
We’re thrilled to announce the preview of new storage sizes for vCore-based Azure Cosmos DB for MongoDB, designed to provide more capacity and enhanced performance for your MongoDB workloads. Whether you’re managing large, complex datasets or high-throughput applications, these new storage tiers—8 TiB, 16 TiB, and 32 TiB per physical shard—offer the flexibility to scale effortlessly and optimize your MongoDB database operations. Expanded storage options: 8 TiB, 16 TiB, and 32 TiB per physical shard vCore-based Azure Cosmos DB for MongoDB now offers larger storage capacities per physical shard, with new tiers of...
Announcing Azure Cosmos DB Integration with LangChain.js!
Announcing Azure Cosmos DB Vector Store Integration with LangChain.js! We're simplifying AI app development by integrating Azure Cosmos DB's cost-effective and scalable vector search directly with LangChain.js! This powerful combination empowers JavaScript developers to efficiently manage fast and accurate data retrieval with Azure Cosmos DB's scalability and efficient vector search capabilities. This offers a powerful solution for developers aiming to leverage vector search capabilities in their applications. Azure Cosmos DB supports vector indexing and search, allowing for efficient handling of high-dimensiona...