AI on Azure & .NET: Weekly Roundup — Week of March 15, 2026
TL;DR: GPT-5.4 lands in Microsoft Foundry with built-in computer-use, Agent 365 gets a GA date and a price tag, the Microsoft Agent Framework hits Release Candidate for .NET and Python, old GPT-4o model versions sunset on March 31, and the...
Azure’s new agentic modernization push: what it means for .NET and Azure engineers
TL;DR Microsoft is doubling down on agentic AI for application modernization on Azure, positioning AI agents as first‑class helpers that understand telemetry, dependencies, and APIs—not just chat prompts. For .NET and Azure engineers, this translates into faster modernization planning, tighter...
`@modernize-dotnet` Is Everywhere Now: What the New GitHub Copilot Agent Means for Your .NET Stack
TL;DR: As of mid-March 2026, the modernize-dotnet GitHub Copilot agent is no longer just a Visual Studio feature. It now runs inside VS Code, the GitHub Copilot CLI, and directly on GitHub.com — following a structured assess → plan →...
GPT-5.4 Lands in Microsoft Foundry: What It Actually Means for Your .NET Agent Pipelines
TL;DR OpenAI’s GPT-5.4 is now generally available in Microsoft Foundry, bringing a 1-million-token context window, a redesigned Tool Search system, improved instruction adherence, and measurably fewer hallucinations — all accessible through the Azure.AI.Projects SDK in C#. If you’re shipping agentic...
The MCP C# SDK Hits v1.0: What Every .NET Agent Builder Needs to Know Right Now
**Published: March 14, 2026 ~850 words** TL;DR The Model Context Protocol (MCP) C# SDK has reached its v1.0 milestone, bringing full support for the 2025-11-25 version of the MCP Specification. For .NET developers building AI agents on Azure, this is...
Microsoft Agent 365 Is Here: What Enterprise .NET Developers Actually Need to Know
Microsoft Agent 365 Is Here: What Enterprise .NET Developers Actually Need to Know Published: March 14, 2026 TL;DR Microsoft announced general availability of Agent 365 and Microsoft 365 E7 on March 9, 2026, both landing May 1, 2026. For .NET...
GPT-5.4 Is GA in Microsoft Foundry — and the .NET SDK Is Right Behind It
GPT-5.4 Is GA in Microsoft Foundry — and the .NET SDK Is Right Behind It Published: March 13, 2026 Tags: Azure, .NET, AI Foundry, GPT-5.4, Agentic AI TL;DR OpenAI’s GPT-5.4 is now generally available in Microsoft Foundry, bringing production-grade agentic...
The MCP C# SDK Hits v1.0: What Every .NET Agent Builder Must Know This Week
The MCP C# SDK Hits v1.0: What Every .NET Agent Builder Must Know This Week Published: March 12, 2026 Audience: .NET & Azure engineers building AI-powered applications TL;DR Microsoft has released version 1.0 of the official MCP C# SDK, bringing...
Microsoft Agent 365 Goes GA (May 1): What .NET and Azure Developers Must Do Now
Microsoft Agent 365 Goes GA (May 1): What .NET and Azure Developers Must Do Now Published: March 11, 2026 TL;DR: On March 9, 2026, Microsoft announced that Agent 365 — its enterprise control plane for AI agents — reaches general...
Azure Functions Is Now Your MCP Server: What the GA Release Means for .NET AI Agents
Azure Functions Is Now Your MCP Server: What the GA Release Means for .NET AI Agents TL;DR: Azure Functions’ support for the Model Context Protocol (MCP) has reached General Availability. For .NET engineers building AI agents on Azure, this means...