Dev Blogs
Plan your Microsoft Ignite November 17-20 viewing, then explore October's Copilot harness preview, GA browser automation and hosted-agent resilience, Decisions API, and SDK updates with chapter-linked Handoff demos.
Explore September's models, Routines, Tool Search, Model Router, and Insights through one two-agent workflow that turns public releases into a Foundry developer changelog.
Catch up on July and August in Microsoft Foundry: stable Hosted Agent and Toolbox SDK paths, Claude tools on Azure-hosted deployments, Model Router updates, local inference improvements, and the SDK migrations worth checking before you upgrade.
Claude is now generally available in Microsoft Foundry. Here's everything else that shipped between Build 2026 and the end of June — autopilot agents, expanded Toolboxes and Routines, Agent Optimizer's private preview, and more.
Learn a practical model lifecycle for Microsoft Foundry: select the right model, evaluate quality, optimize cost, operate safely, and improve as production needs change.
Microsoft Build 2026 brings a major set of Microsoft Foundry updates for developers building agents: hosted runtimes, Toolboxes, memory, Voice Live, Foundry IQ, new models, managed compute, and trust, evaluation, and observability tools.
May ships trace-based evaluation for any agent on any cloud, Grok 4.3 and DeepSeek V4 in the model catalog, GPT-5 Reinforcement Fine-Tuning at gated GA, three Microsoft Research on-device agent models, Managed VNET at GA, project-level cost attribution, Content Understanding improvements reaching GA, Foundry Local 1.1 and 1.2 with live audio and vi...
April brings a wave of model arrivals — GPT-5.5, GPT-image-2, Microsoft first-party MAI models for image, voice, and transcription, Gemma 4, and Claude Opus 4.7 — alongside Foundry Local GA, Microsoft Agent Framework 1.0 GA, the Microsoft Foundry Toolkit for VS Code GA, batch evaluations for third-party agents, new tracing and monitoring capabiliti...
March ships Foundry Agent Service GA with private networking, GPT-5.4 and GPT-5.4 Mini, Priority Processing, Phi-4 Reasoning Vision, SDK 2.0 GA across Python, JS/TS, Java, and .NET, Fireworks AI and NVIDIA Nemotron models, and third-party guardrails from Palo Alto and Zenity.
February brings Anthropic's Claude Opus 4.6 and Sonnet 4.6 with 1M-token context, GPT-Realtime-1.5 and GPT-Audio-1.5, Grok 4.0 GA, the Microsoft Agent Framework reaching Release Candidate, and the Foundry REST API quietly going GA — laying the foundation for imminent SDK GA announcements across Python, .NET, JS/TS, and Java.