Microsoft 365 Developer Blog
A developer platform for building collaborative apps for hybrid work
Latest posts
Develop enterprise-grade apps with SharePoint Embedded
Taking an enterprise application from development to production requires confidence that it can scale, stay reliable, and be governed effectively. Recent SharePoint Embedded updates give developers clearer guidance for making those decisions, from understanding limits and managing throttling to choosing the right permissions. In this blog post, we highlight updates that help you: Read on to get more details and watch the SharePoint Embedded presentation below to learn more about these updates: Plan for scale with clearer baselines and limits We updated the container st...
Work IQ: the new retrieve tool
The new Work IQ Retrieve tool grounds agents in the context of work, helping them reason over the right information and deliver more relevant, trustworthy responses. With one retrieval layer across work sources, developers can give agents richer organizational context without building separate search systems. Retrieve: grounded answers across work sources The new MCP tool named searches a user's workplace data—including email, files, meetings, Teams messages and people, as well as connected enterprise sources. As with any other tool offered by Work IQ, each user will be able to retrieve information only fr...
Build AI-powered apps without creating a vector database
Developers building AI applications face a familiar challenge: how do you ground AI experiences in enterprise content while maintaining security, compliance, and governance? You can use the Microsoft 365 Copilot Retrieval API for SharePoint Embedded, which helps you add Microsoft 365 Copilot and agent experiences to your SharePoint Embedded apps when you want to control the grounding step, the prompt, and the model yourself. In addition, you can use the SharePoint Embedded Model Context Protocol (MCP) server, now available in public preview, to build and manage apps with a coding agent. Together, the...
Pre-authenticated (tempauth) URLs are retiring: move to Microsoft Entra ID tokens before April 1, 2027
Starting April 1, 2027, affected Microsoft Graph file APIs will no longer return pre-authenticated URLs. Applications using these APIs must authenticate requests with Microsoft Entra ID access tokens.
SharePoint Framework (SPFx) roadmap update – September 2026
New Copilot UX components heading to Generally Available in October 2026, SPFx 1.24 Beta 5 is now available, React 18 support is coming in 1.24. Updates coming in Node.js support.
Bring your plugin to Microsoft Copilot with Work IQ Developer Tools
Bring an existing agent plugin into Work IQ Developer Tools (WIQD) and the plugin registry or create a new plugin to utilize the full Microsoft Copilot packaging workflow. A plugin gives Microsoft Copilot new ways to get work done. It packages one or more capabilities, such as skills, MCP servers, or agents, so Copilot can support the workflows that matter to your organization. Starting fresh? Work IQ Developer Tools (WIQD) can help you turn a business problem or inefficient workflow into a plugin that extends what Copilot can do. Most developers will not start with an empty folder. You may already have ...
Join the Copilot Dev Camp Summit Fall Edition on September 30
The very first Copilot Dev Camp Summit will take place on September 30, 2026, at 8:00 AM Pacific Time, launching a new quarterly event for the Copilot Extensibility community. This free, quarterly online event brings together developers, makers, product experts, and the broader technical community to explore the evolving capabilities of Microsoft 365 Copilot, Cowork, GitHub Copilot, Microsoft IQ, and their extensibility ecosystems. Whether you build Copilot experiences, create agents, or simply want to learn what is coming next, the Summit offers an excellent opportunity to hear directly from experts, ask...
Investing in a more reliable Microsoft Graph PowerShell experience
We're focusing Microsoft Graph PowerShell on the platform where we can give you the most reliable, capable, and well-maintained experience: PowerShell 7.x and later. Built on modern .NET, PowerShell 7.x resolves many of the underlying assembly-loading and dependency issues that affect Windows PowerShell 5.x today. Concentrating our engineering there means faster fixes, quicker delivery of new features, and fewer platform-specific failures for you. To make that focus possible, today we're announcing that Windows PowerShell 5.x is entering a 12-month retirement period for the Microsoft Graph PowerShell modules. ...
Behind SPFx Dev Skills: testing what agents know and fixing what they miss
How much guidance does an AI coding agent actually need? See how we used evaluation data to target SPFx knowledge gaps, improving results without wasting tokens on what models already know.