Microsoft
Developer Blogs

Get the latest information, insights, and news from Microsoft.

Highlights

Azure Cosmos DB Conf 2026 — Call for Proposals Is Now Open

Every production system has a story behind it. The scaling limit you didn’t expect. The data model that finally clicked. The tradeoff you had to make under real-world pressure. The solution that worked—and the lessons you’d pass on to the next team. Azure Cosmos DB Conf...
Read moreClick to read more about this post

Latest posts

Jan 12, 2026
Post comments count8
Post likes count3

Aspire for JavaScript developers

Author Avatar
David Pine
Aspire 13 brings comprehensive JavaScript and TypeScript support to cloud-native development, enabling you to orchestrate Node.js applications, Vite frontends, and JavaScript services alongside your .NET projects with unified tooling and seamless integration.
Aspire Blog
banner oldnewthing blue image
Jan 12, 2026
Post comments count0
Post likes count2

Clipping the focus item when looking for its on-screen location

Author Avatar
Raymond Chen
Preventing the cursor from pointing to nothing.
The Old New Thing
banner oldnewthing blue image
Jan 9, 2026
Post comments count1
Post likes count1

Using Active Accessibility to find out where the focus item is

Author Avatar
Raymond Chen
Looking at child objects.
The Old New Thing
December 2025 (version 1.108)
Jan 8, 2026
Post likes count0

December 2025 (version 1.108)

Author Avatar
Visual Studio Code Team
Learn what is new in the Visual Studio Code December 2025 Release (1.108). Read the full article
VS Code Blog
start apphost output png image
Jan 8, 2026
Post comments count2
Post likes count3

Scaling AI Agents with Aspire: The Missing Isolation Layer for Parallel Development

Author Avatar
tamir dresher
Scaling AI agent development with Aspire and Git worktrees by solving port conflicts through automatic port allocation scripts and an MCP proxy layer that enables parallel AI agents to orchestrate and debug complete distributed systems simultaneously.
Aspire Blog
banner oldnewthing blue image
Jan 8, 2026
Post comments count4
Post likes count2

Using Active Accessibility to find out where the Windows caret is

Author Avatar
Raymond Chen
It's old and rather simple, but we like simple.
The Old New Thing
title Large image
Jan 7, 2026
Post comments count1
Post likes count11

The Realities of Application Modernization with Agentic AI (Early 2026)

Author Avatar
jkordick
How to read this article This article is a reflection based on hands-on experience and is written for engineers and technical leaders who are facing a new application modernization effort and want to build a realistic mental model before reaching for tools. If you are new to...
All things Azure
vectorsearchmongo jpg image
Jan 7, 2026
Post comments count1
Post likes count0

Secure and Intelligent: Queryable Encryption and Vector Search in MongoDB EF Core Provider

Author AvatarAuthor Avatar
Rishit,
Luce
The MongoDB EF Core provider now supports Queryable Encryption and Vector Search. Learn how to encrypt sensitive data while querying it and build AI-powered semantic search applications directly with EF Core.
.NET Blog
Public Preview: Cosmos DB Mirroring in Microsoft Fabric with Private Endpoints
Jan 7, 2026
Post comments count0
Post likes count0

Public Preview: Cosmos DB Mirroring in Microsoft Fabric with Private Endpoints

Author Avatar
Mark Brown
We are very excited to announce the public preview for private endpoint support for Azure Cosmos DB Mirroring with Microsoft Fabric mirroring. This feature allows you to preserve the enhanced network security on your data in Cosmos DB from virtual networks or private endpoints, allowing...
Azure Cosmos DB Blog