Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

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From Innovation to Enterprise Trust with Microsoft Agent 365
Nov 18, 2025
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From Innovation to Enterprise Trust with Microsoft Agent 365

Nirav Shah
Nirav Shah

Agent 365 serves as the control plane for agents, providing organizations with a centralized location to manage agent identity, policies, observability, and lif...

Microsoft 365 DeveloperMicrosoft 365 Copilot

Latest posts

Creating Visio Add-ins with VSTO 2005 SE
Aug 24, 2018
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Creating Visio Add-ins with VSTO 2005 SE

Visio team
Visio team

There have been several newsgroup postings about using VSTO to create Visio Add-ins.  The deployment of these add-ins can be especially challenging.  There is a new developer article by Chris Castillo detailing how to write VSTO add-ins for Visio.  Chris explains why using VSTO is desirable and aggregates information from a number of sources to walk you through the development and deployment process.

Container, List and Callout API in Visio 2010
Aug 24, 2018
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Container, List and Callout API in Visio 2010

Visio team
Visio team

This post examines the programmability features for Containers, Lists and Callouts in Visio 2010.  It supplements an earlier post that describes how these special shapes are constructed and how they can be customized.

Visio 2010 Connectivity API
Aug 24, 2018
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Visio 2010 Connectivity API

Visio team
Visio team

In this blog post, we introduce the new Visio 2010 methods used for working with connected diagrams. Then we will see these methods in action by doing a visual walk-through of a program that manipulates a flowchart.

Intelligent Diagrams in Visio
Aug 24, 2018
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Intelligent Diagrams in Visio

Visio team
Visio team

This is the sixth topic in a series discussing the essential features that make up the Visio application.

Managed Access to Microsoft Graph Data in Private Preview
Aug 16, 2018
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Managed Access to Microsoft Graph Data in Private Preview

Office Add-ins team
Office Add-ins team

We’re pleased to announce that we are expanding the focus of the Managed Access to Microsoft Graph Data preview, announced this spring at our Build 2018 conference, to include scenarios for Enterprises as well as ISVs.

SharePoint Development Community (PnP) – August 2018 update
Aug 14, 2018
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SharePoint Development Community (PnP) – August 2018 update

SharePoint team
SharePoint team

SharePoint Dev Ecosystem / SharePoint Patterns and Practices (PnP) August 2018 update is out with a summary of the latest guidance, samples, and solutions from SharePoint engineering or from the community for the community. This article is a summary of all the different areas and topics around SharePoint Dev ecosystem during the past month.

Introduction to SharePoint Server 2019 Preview Development Platform
Aug 13, 2018
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Introduction to SharePoint Server 2019 Preview Development Platform

SharePoint team
SharePoint team

SharePoint Server 2019 Preview was announced on 24th of July in Microsoft Tech Community. Announcement blog post covered the key platform capabilities from the end user and administrative perspective, but as it did not cover key changes from the development perspective, we wanted to provide this blog post around covering some additional details, which would be relevant for architects and developers.

Site Scripts  & Site Designs – Summer 2018 Update
Aug 8, 2018
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Site Scripts & Site Designs – Summer 2018 Update

SharePoint team
SharePoint team

As we move into summer, we are pleased to announce the availability of additional Site Script actions and capabilities for Site Designs. These new actions are designed to facilitate the programmatic configuration of common site settings and elements – and can be applied both manually through PowerShell or integrated into the SharePoint Online self-service site creation experience.

New SharePoint CSOM version released for SharePoint Online – July 2018
Aug 6, 2018
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New SharePoint CSOM version released for SharePoint Online – July 2018

SharePoint team
SharePoint team

We are happy to announce the availability of new SharePoint Client-Side Object Model (CSOM) version targeted for the Office 365 or more specifically for SharePoint and Project Online. This was mainly a small maintenance release with minimal updates on the CSOM API surface. The July 2018 release was delayed until early August due small timing issues.