The countdown to Microsoft Build 2025 is on! Calling all .NET developers: prepare for an exciting lineup of .NET and C# content. Whether you’re a seasoned pro or just starting out, there’s something for everyone to dive into and enjoy. Don’t miss out on this opportunity to learn and connect with the rest of the .NET and Microsoft community.

Join us either in-person in Seattle or from the comfort of your own home on May 19-22.

Dive into .NET Sessions Copy link

Microsoft Build is packed with .NET content this year, so make sure to check out all the .NET sessions and add them to your profile’s agenda – this includes the .NET Breakout sessions, .NET Labs, and .NET Demos.

There are over 75 amazing .NET sessions at Microsoft Build this year, here’s just a small sampling of some of the top sessions you won’t want to miss:

Elevating Development with .NET Aspire: AI, Cloud, and Beyond Copy link

Let’s delve into the latest advancements in .NET Aspire and offer a sneak peek at the exciting features coming in version 9.3. This session will highlight how to leverage AI within .NET Aspire to enhance your development process, streamline workflows, and build intelligent applications. We’ll cover key updates, demonstrate practical applications, and provide insights into delivering your application systems.

The Future of .NET App Modernization Streamlined with AI Copy link

GitHub Copilot and Agents are transforming how developers modernize their applications and get them cloud ready. Come see how GitHub Copilot Upgrade for .NET helps you upgrade your .NET applications directly from Visual Studio. From project and dependency analysis, plan execution, automatic self-healing, detailed reporting, and more. Hear from industry experts who are transforming their .NET app modernization with GitHub Copilot.

Yet “Another Highly Technical Talk” with Hanselman and Toub Copy link

Following their “Highly Technical Talk” at Build 2024, join Scott Hanselman and partner software engineer Stephen Toub for another 100% LIVE demo—no slides, just real-time code fixes. In this “highly technical talk” on the internals of .NET, they’ll look for performance issues and fix them live on stage. In this talk, you’ll learn debugging, performance, and optimization skills. If you are super advanced, level up, and let’s see how deep you can go!

Python Meets .NET: Building AI Solutions with Combined Strengths Copy link

.NET is the ideal platform for building fast, scalable, Enterprise-ready apps that run anywhere. Python is the ideal platform for doing data-science, analytics, and machine-learning. .NET runs some of the biggest applications on the planet and Python has been used for some of the biggest scientific discoveries of the past 20 years. In this session, Scott Hanselman and Anthony Shaw will discuss and demo how to spice-up your .NET applications with Python.

What’s Next in C# Copy link

Join Mads and Dustin on a demo-filled tour through upcoming features in C# 14 and beyond. Dictionary expressions, new kinds of extension members and field access in auto-properties are some of the ways that C# keeps making your code clearer, cleaner and more expressive.

Build the next generation of AI apps with .NET: Models, Data, Agents, & Beyond Copy link

.NET is transforming how developers build AI native applications and agents. With deep integrations throughout the AI ecosystem, a streamlined development process with Microsoft.Extension.AI, templates to jumpstart development, and the ability to leverage and build the latest in Model Context Protocol (MCP) and Agents, .NET is the go to for AI development. Come see how all of this works together and how we are evolving .NET for developers to build interactive agents that communicate silently and at lightning speed. Tell the front-end agent to book travel to the Build conference, and your calendar invites and expense report confirmations start appearing. Agents are transforming business processes and this session explores how .NET and AI can optimize workflows and integrate agents into applications. Learn to use familiar tools to build and manage intelligent agents, enhancing productivity and communication within organizations.

AI infused mobile & desktop app development with .NET MAUI Copy link

.NET MAUI helps you build apps that work everywhere – iOS, Android, macOS, and Windows. We’ll show you how GitHub Copilot and Visual Studio’s AI features can speed up your coding, and how .NET Aspire fits into your development workflow. You’ll see real examples of how these tools work together to help you build better native and hybrid apps with less effort.

The future of web development with ASP.NET Core & Blazor Copy link

Come check out what’s next for ASP.NET Core & Blazor! We’ll demo how to build web apps that use AI capabilities, implement modern security with WebAuthn & Passkeys, and get better insights with improved diagnostics. We’ll also peek at upcoming Blazor features, OpenAPI improvements, and how .NET Aspire makes deployment and monitoring simpler.

Hands-on Labs Copy link

Roll up your sleeves and actually build something! Our hands-on labs give you a chance to work with these technologies directly while experts are available to answer your questions.

Build an Intelligent App with .NET, Azure OpenAI, and Semantic Kernel Copy link

Build your own AI-powered app using .NET, Azure OpenAI, and Semantic Kernel. You’ll code a solution that connects to large language models, craft effective prompts, add memory to keep context in conversations, and implement planning for complex tasks. Best of all, you’ll do it all with familiar .NET patterns and tools.

Building GenAI Apps in C#: AI Templates, GitHub, Azure OpenAI & More Copy link

Get up to speed quickly with AI app building in .NET! Explore the new .NET AI project templates integrated with Microsoft.Extensions.AI, GitHub Models, and vector data stores. Learn how to take advantage of free GitHub Models in development, then deploy with global scale and enterprise support using Azure OpenAI. Gain hands-on experience building cutting-edge intelligent solutions with state-of-the-art frameworks and best practices.

Deploy and Monitor Cloud Applications with .NET Aspire Copy link

Get your hands dirty with .NET Aspire by building and deploying a real cloud application. You’ll create a multi-service app, wire up all the connections between services, add monitoring so you can see what’s happening, and deploy it to Azure. By the end, you’ll understand how .NET Aspire removes a lot of the cloud infrastructure headaches so you can focus on writing your application code.

Connect and Learn Copy link

Meet the Experts Copy link

Grab some time with the people who actually build .NET. Our team members will be available to chat about the latest features, help troubleshoot your specific problems, and hear your feedback directly.

Live Demos Copy link

Witness the power of .NET in action at our live demonstration area. Discover new tools, features, and capabilities through practical examples and real-world applications.

Join the Conversation Copy link

Connect with fellow developers and the broader .NET community. Share your experiences, exchange ideas, and forge connections that extend beyond the event.

Get a quick overview of the .NET sessions at Microsoft Build Copy link

James Montemagno’s got you covered with a 5-minute overview of the .NET sessions at Microsoft Build here:

Register Now and Join Us Copy link

Whether you’re attending in-person or online, we’re excited to welcome you to our .NET developer community. Microsoft Build 2025 promises to be an unforgettable experience with opportunities to:

• Learn about the latest .NET innovations directly from the product teams
• Network with fellow developers and Microsoft engineers
• Get hands-on experience with new technologies in interactive lab sessions
• Shape the future of .NET through feedback sessions and community discussions

See you in Seattle or online this May!