<p>We are excited to share updates on the Microsoft 365 Developer Program with new capabilities and upcoming changes.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/exciting-new-capabilities-and-enhancements-for-m365-developer-program-october-2025/">Exciting new capabilities and enhancements for M365 Developer Program &#8211; October 2025</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This new blog series kicks off our journey into the next evolution—transparent, community-driven, and built for the AI era. Let’s shape what’s next, together.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/sharepoint-framework-spfx-roadmap-update-september-2025/">SharePoint Framework (SPFx) roadmap update – September 2025</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>We’re excited to introduce the Agent Store — a centralized, curated marketplace that features agents built by Microsoft, trusted partners, and customers. The Agent Store offers a new, immersive experience within Microsoft 365 Copilot that enables users to browse, install, and try agents tailored to their needs.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/introducing-the-agent-store-build-publish-and-discover-agents-in-microsoft-365-copilot/">Introducing the Agent Store: Build, publish, and discover agents in Microsoft 365 Copilot</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>Learn how Microsoft 365 Copilot APIs allow you to build solutions grounded in your organization’s content, context, and permissions, without needing to relocate or duplicate data.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/microsoft-365-copilot-apis/">Introducing Microsoft 365 Copilot APIs</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>Get started with Nested App Authentication, a modern protocol for simplifying authentication for Personal Tab Teams apps that run across Microsoft 365.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/nested-app-authentication-now-generally-available-across-microsoft-365/">Nested App Authentication: Now generally available across Microsoft 365</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>We are excited to share updates on the Microsoft 365 Developer Program with new capabilities and upcoming changes.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/exciting-new-capabilities-and-enhancements-for-m365-developer-program-october-2025/">Exciting new capabilities and enhancements for M365 Developer Program &#8211; October 2025</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>SPFx is powering the future of Microsoft 365. From AI-driven portals to seamless integrations across SharePoint, Teams and Viva, SPFx is driving innovation at scale. This new blog series kicks off our journey into the next evolution—transparent, community-driven, and built for the AI era. Let’s shape what’s next, together.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/sharepoint-framework-spfx-roadmap-update-september-2025/">SharePoint Framework (SPFx) roadmap update – September 2025</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>We’re excited to introduce the Agent Store — a centralized, curated marketplace that features agents built by Microsoft, trusted partners, and customers. The Agent Store offers a new, immersive experience within Microsoft 365 Copilot that enables users to browse, install, and try agents tailored to their needs.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/introducing-the-agent-store-build-publish-and-discover-agents-in-microsoft-365-copilot/">Introducing the Agent Store: Build, publish, and discover agents in Microsoft 365 Copilot</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>Read how the Microsoft 365 Agents Toolkit, an evolution of Microsoft Teams Toolkit, is designed to help developers build agents and apps for Microsoft 365 Copilot, Microsoft Teams, and Microsoft 365.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/introducing-the-microsoft-365-agents-toolkit/">Introducing the Microsoft 365 Agents Toolkit</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>

<p>We are excited to announce general availability for the SharePoint Framework 1.21. This time focus is primarily on technical platform updates and new UX options in SharePoint and in Viva Connections.</p> <p>The post <a href="https://devblogs.microsoft.com/microsoft365dev/announcing-sharepoint-framework-1-21-with-updates-on-building-enterprise-extensibility-within-microsoft-365/">Announcing SharePoint Framework 1.21 with updates on building enterprise extensibility within Microsoft 365</a> appeared first on <a href="https://devblogs.microsoft.com/microsoft365dev">Microsoft 365 Developer Blog</a>.</p>