Open Source - 1

2026 (2)

March (1)

security: CTI-REALM: A new benchmark for end-to-end detection rule generation with AI agents

Microsoft Security Blog

2026-03-20

Microsoft introduced CTI-REALM, an open-source benchmark for evaluating AI agents on end-to-end detection engineering. It measures whether agents can turn cyber threat intelligence into validated detection rules.

February (1)

github: The Dependabot Proxy is now open source with an MIT license

GitHub

2026-02-03

GitHub has open-sourced the Dependabot Proxy and released it under the permissive MIT license, allowing developers to review the implementation (including how authentication is handled for different package ecosystems), reuse it, and contribute.

2025 (10)

November (3)

azure: [Launched] Generally Available: Azure DocumentDB - an open-source, MongoDB-compatible document database service for hybrid and multicloud

Azure Updates

2025-11-18

Microsoft announced the general availability of Azure DocumentDB, a fully managed, open-source, MongoDB-compatible document database service—formerly offered as Azure Cosmos DB for MongoDB—and now governed by the Linux Foundation for hybrid and multicloud deployments.

vscode: Open Source AI Editor: Second Milestone

Visual Studio Code

2025-11-06

Ghost text suggestions have been open sourced as part of the Copilot Chat extension — the second milestone toward making VS Code an open source AI editor.

azure: [Launched] Open Source: Announcing the DocumentDB Kubernetes Operator

Azure Updates

2025-11-05

Microsoft announced the open-source DocumentDB Kubernetes Operator, which lets you run DocumentDB (a MongoDB‑compatible, open-source document database built on PostgreSQL) on Kubernetes by extending the cluster with custom resource definitions (CRDs).

October (5)

dotnet: Announcing Sponsorship on NuGet.org

.NET

2025-10-23

The .NET Blog announces a new Sponsorship feature on NuGet.org designed to help users recognize and support package maintainers and to strengthen the NuGet community.

security: Microsoft raises the bar: A smarter way to measure AI for cybersecurity

Microsoft Security Blog

2025-10-14

Microsoft introduced ExCyTIn-Bench, an open-source benchmarking tool that evaluates how effectively AI systems perform real-world cybersecurity investigations, aiming to standardize measurement and improve AI-driven defensive capabilities.

azure: [Launched] Generally Available: Open-Source - Containerization Assist MCP Server

Azure Updates

2025-10-13

Microsoft announced the general availability of the open-source Containerization Assist MCP Server, a full containerization platform that automates Dockerfile creation and Kubernetes manifest generation to reduce manual, error-prone work. The service is built on the proven AKS Draft technology and aims to be more than a basic AI coding tool by providing end-to-end containerization support.

azure: [Launched] Generally Available: AI toolchain operator add-on (KAITO) for AKS

Azure Updates

2025-10-07

Microsoft announced general availability of the AI toolchain operator add-on (KAITO) for Azure Kubernetes Service (AKS). KAITO streamlines deployment of AI inference and fine-tuning workflows using popular open-source frameworks, with vLLM set as the default inference engine to simplify management and scaling of model serving.

ai: Introducing Microsoft Agent Framework: The Open-Source Engine for Agentic AI Apps

Microsoft AI Foundry Blog

2025-10-01

Microsoft announced the open-source Microsoft Agent Framework, an engine designed for building agentic AI applications. The framework addresses the evolving needs of AI agents — which go beyond chatbots and copilots — by enabling autonomous components that can reason about goals, call tools and APIs, collaborate with other agents, and adapt dynamically. The announcement appeared on the Azure AI Foundry Blog.

September (2)

azure: [Launched] Generally Available: Azure Container Storage v2.0.0 now with NVMe performance boost, open source, and no service fees

Azure Updates

2025-09-16

Azure Container Storage (ACStor) v2.0.0 is now generally available, offering up to 7× higher IOPS and 4× lower latency on local NVMe compared to v1.3.1. The release positions ACStor as the fastest storage option for Azure Kubernetes Service, is open source, and carries no service fees.

github: GitHub Actions: AI labeler and moderator with the GitHub Models inference API

GitHub

2025-09-05

GitHub has released two new GitHub Actions that utilize the GitHub Models inference API to assist open source maintainers. These include an AI assessment comment labeler to help streamline issue triage using trigger labels.