Microsoft
Developer Blogs

We thought it was a good time to check in and highlight some of the work happening in Azure Repos. In this post, we’ve covered several recent improvements, along with a preview of features that are coming soon. To stay up to date, be sure to visit the Azure DevOps Roadmap. These...

The tab index number is an authoring concept, not a runtime concept.

Introduction  This post is Part 1 of the series Serverless Application Development with Azure Functions and Azure Cosmos DB, where we explore how to build end-to-end serverless applications using Azure Functions for compute and Azure Cosmos DB for storage. Together, these services...

This blog details how the Azure AI Evaluation SDK can be used to assess the performance of a small language model for function calling, such as Phi-4-mini-instruct, and view the results in Microsoft Foundry.

Today, we are excited to announce that GPT-5.2, Azure OpenAI’s newest frontier reasoning model, is available in Microsoft Azure for U.S. Government Secret and Top Secret cloud environments. This release marks another significant milestone in our mission to bring cutting edge AI...

The strings are an implementation detail.

We are excited to introduce Microsoft Entra PowerShell v1.2.0, a major update that delivers full support for Agent Identity Blueprints, expanded application configuration capabilities, and modernized invitation APIs aligned with Microsoft Graph models. This release consolidates...

Are you wasting time reviewing code for nits on code standards, project preferences, or important contribution guidelines? We know the pain. It’s all too easy for best practices and those tiny but critical team details to slip through the cracks, resulting in inconsistencies,...

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...

How we built docfind, a high-performance client-side search engine using Rust and WebAssembly, and how GitHub Copilot accelerated development. Read the full article

Earlier this year, we launched Agent Academy: Recruit, a foundational learning path designed to help makers and developers get started with building agents in Copilot Studio. The response exceeded our expectations. Since launch, thousands of learners have worked through the Recruit...

If you build agents with the Copilot Studio extension for Visual Studio Code, you already know the fastest way to iterate is to treat your agent like software: version it, review changes, and promote it through environments with confidence. Today, the Microsoft Copilot Studio extension...

This blog post documents the transformation of the azure-search-openai-demo (a Python/TypeScript RAG application) through the addition of Aspire for local development and observability. It demonstrates how Aspire can enhance polyglot applications without requiring rewrites.

Finding all the clipping parents.

A recap of the latest servicing updates for .NET and .NET Framework for January 2026.

Finding the correct clipping parent.

Scenario: When Every Millisecond Counts in Gaming Imagine millions of players logging in at the exact moment a new game season launches. Leaderboards light up, achievements tally, and in-game shops buzz with transactions. In these high-stakes moments, speed and reliability aren’t...

Build interactive Android widgets with .NET MAUI using RemoteViews, intents, and shared data.

A deep dive into the technical challenges of keeping .NET's product repositories synchronized with our Virtual Monolithic Repository using a custom two-way algorithm.

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.

Preventing the cursor from pointing to nothing.

Looking at child objects.

Learn what is new in the Visual Studio Code December 2025 Release (1.108). Read the full article

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.

It's old and rather simple, but we like simple.

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...

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.