# .NET .NET is a free, open-source, cross-platform developer platform for building applications and cloud services. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Build Your Own AI Agent Harness in C#, the MafClaw Live Series DevFeed: [Build Your Own AI Agent Harness in C#, the MafClaw Live Series]() Original publisher: [Read original article]() Author: Bruno Capuano Published: 2026-09-16T21:00:00Z Content type: tutorial Language: en Sources: [.NET Blog]() Topics: [Agent Harness](), [Microsoft Agent Framework](), [AI Agent](), [C#](), [.NET]() Tags: [agent](), [agent-framework](), [agent-harness](), [ai](), [building](), [c-sharp](), [cloud](), [csharp](), [microsoft-agent-framework](), [microsoft-reactor](), [net](), [observability]() ### AI overview This article introduces a four-part live series that builds a complete C# AI agent using the Microsoft Agent Framework harness. It describes adding tools, planning, file access, approvals, memory, skills, shell commands, code execution, background agents, observability, governance, evaluations, and hosted deployment. ### Source excerpt I am building a complete C# agent live, from a single call around an IChatClient to a production-ready, observable, governed agent, using the Microsoft Agent Framework harness in a 4-part Microsoft Reactor series. The post Build Your Own AI Agent Harness in C#, the MafClaw Live Series appeared first on .NET Blog. ## Build an interview coach app with the GitHub Copilot SDK DevFeed: [Build an interview coach app with the GitHub Copilot SDK]() Original publisher: [Read original article]() Author: Justin Yoo Published: 2026-09-15T16:00:11Z Content type: tutorial Language: en Sources: [Developer Blogs]() Topics: [GitHub Copilot](), [SDK](), [Model Context Protocol](), [.NET](), [Blazor]() Tags: [agent-framework](), [ai](), [blazor](), [github-copilot](), [github-copilot-sdk](), [mcp](), [microsoft-agent-framework](), [microsoft-foundry](), [model-context-protocol](), [net](), [sdk]() ### AI overview This tutorial demonstrates how to build an interview coach application with the GitHub Copilot SDK in .NET. The sample uses a Blazor chat interface, Copilot instructions and callable tools, and Model Context Protocol services for document handling and interview records. It emphasizes giving Copilot application-specific tools rather than access to shell commands or source files. ### Source excerpt An interview coach has to do more than ask questions. It needs to read a resume, follow up on an incomplete answer, and save enough context to give useful feedback at the end. Some of that work is conversation. Some of it requires calling an application service. The GitHub Copilot SDK lets you use the [...] The post Build an interview coach app with the GitHub Copilot SDK appeared first on Microsoft for Developers. ## Performance Improvements in .NET 11 DevFeed: [Performance Improvements in .NET 11]() Original publisher: [Read original article]() Author: Stephen Toub - MSFT Published: 2026-09-15T12:00:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [.NET](), [.NET 11]() Tags: [blog](), [improvements](), [net](), [net-11](), [performance](), [post]() ### AI overview This post surveys hundreds of performance improvements in .NET 11, including runtime and library changes that reduce bounds checks, allocations, locks, loop cycles, redundant checks, instructions, system calls, and array-copy costs. ### Source excerpt Take a tour through hundreds of performance improvements in .NET 11. The post Performance Improvements in .NET 11 appeared first on .NET Blog. ## COBOL dev won .Net hackathon with help from AI - and their CIO loves it DevFeed: [COBOL dev won .Net hackathon with help from AI - and their CIO loves it]() Original publisher: [Read original article]() Author: Simon Sharwood Published: 2026-09-15T01:47:17Z Content type: news Language: en Sources: [www.theregister.com - Articles]() Topics: [AdventureX 2025](), [Artificial Intelligence](), [.NET](), [Development](), [coding]() Tags: [ai](), [ai-and-ml](), [australia](), [cobol](), [coding](), [copilot](), [dev](), [hackathon](), [mainframe](), [net](), [public-sector]() ### AI overview The article reports that a COBOL developer won a .NET hackathon with help from AI, a result praised by their CIO. The supplied summary also describes the Australia Taxation Office using Copilot practice to develop skills for future AI work. ### Source excerpt Australia Taxation Office sees footling with Copilot as a way to develop 'muscles' for real AI work ## How to Orchestrate Multi-Call Conversations with an LLM and Twilio Conversation Memory DevFeed: [How to Orchestrate Multi-Call Conversations with an LLM and Twilio Conversation Memory]() Original publisher: [Read original article]() Author: Amanda Lange Published: 2026-09-15T00:00:00Z Content type: tutorial Language: en Sources: [Twilio Blog]() Topics: [Large Language Model](), [.NET](), [ASP.NET](), [C#](), [Artificial Intelligence](), [Command-line interface](), [OpenAI](), [Environment Variables]() Tags: [account](), [agent](), [ai](), [api](), [c-sharp](), [cli](), [code](), [conversation-memory](), [developer-insights](), [environment-variables](), [how-to](), [llm](), [net](), [net-9](), [openai]() ### AI overview This tutorial shows how to build a C# .NET 9 ASP.NET Core service that preserves caller context, preferences, and action history across separate inbound calls using Twilio Conversation Memory and an LLM. ### Source excerpt How to Orchestrate Multi-Call Conversations with an LLM and Twilio Conversation Memory ## How to Catch Security Vulnerabilities in Code Before They Reach Your Pull Requests DevFeed: [How to Catch Security Vulnerabilities in Code Before They Reach Your Pull Requests]() Original publisher: [Read original article]() Author: Umair Mirza Published: 2026-09-14T22:23:01Z Content type: tutorial Language: en Sources: [freeCodeCamp Programming Tutorials: Python, JavaScript, Git & More]() Topics: [Application Security](), [Security](), [Vulnerabilities](), [Secret Scanning](), [Git](), [pull-requests](), [ci](), [Command-line interface](), [.NET](), [Python](), [coding]() Tags: [application-security](), [ci](), [cli](), [code](), [devsecops](), [git](), [net](), [pull-requests](), [python](), [sast](), [secret-scanning](), [security](), [security-vulnerabilities](), [software-development](), [testing](), [vulnerabilities]() ### AI overview This tutorial explains how to shift security checks earlier in development by running SAST locally with Git pre-commit hooks. It demonstrates using the DevSkim CLI to detect insecure coding patterns, pairing it with Gitleaks for dedicated secret scanning, validating the setup with an intentional failure, and enforcing the checks in CI. ### Source excerpt Security reviews are most effective when developers receive feedback while the code is still fresh in their minds. Waiting until a pull request, CI build, or penetration test to find exposed credentia ## Share your .NET story with the community DevFeed: [Share your .NET story with the community]() Original publisher: [Read original article]() Author: Luis Quintanilla Published: 2026-09-14T17:05:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [.NET](), [.NET Conf](), [Development]() Tags: [2026](), [blog](), [community](), [conference](), [customer-stories](), [developer-stories](), [developers](), [development](), [modernization](), [net](), [net-conf](), [performance](), [post](), [virtual-event]() ### AI overview Microsoft invites teams to share how they use .NET to solve practical problems for possible inclusion in .NET Conf 2026 and other .NET channels. Submissions may describe applications, system modernization, performance, security, efficiency, modern C#, or practical AI-powered capabilities. ### Source excerpt Share how your team uses .NET to solve real problems and help us bring more community stories to .NET Conf 2026 and other .NET channels. The post Share your .NET story with the community appeared first on .NET Blog. ## Use C# unions and closed hierarchies in ASP.NET Core DevFeed: [Use C# unions and closed hierarchies in ASP.NET Core]() Original publisher: [Read original article]() Author: Dmitrii Korolev Published: 2026-09-10T17:00:00Z Content type: tutorial Language: en Sources: [.NET Blog]() Topics: [C# 15](), [ASP.NET Core](), [.NET](), [Polymorphism]() Tags: [asp-net-core](), [blazor](), [c-sharp](), [c-sharp-15](), [closed-hierarchies](), [json](), [minimal-api](), [mvc](), [net](), [net-11](), [openapi](), [polymorphism](), [signalr](), [system-text-json](), [union-types]() ### AI overview Explains how C# unions and closed hierarchies model API values with a fixed set of possible types in ASP.NET Core. It contrasts unions with open inheritance-based polymorphism and describes System.Text.Json support. ### Source excerpt Learn how C# unions and closed hierarchies work with System.Text.Json across ASP.NET Core Minimal APIs, MVC, SignalR, Blazor, and OpenAPI. The post Use C# unions and closed hierarchies in ASP.NET Core appeared first on .NET Blog. ## Announcing .NET 11 Release Candidate 1 DevFeed: [Announcing .NET 11 Release Candidate 1]() Original publisher: [Read original article]() Author: .NET Team Published: 2026-09-08T21:30:00Z Content type: release Language: en Sources: [.NET Blog]() Topics: [.NET](), [WinForms]() Tags: [announcements](), [asp-net-core](), [c-sharp](), [f-sharp](), [featured](), [net](), [net-11](), [net-maui](), [nuget](), [production](), [release](), [release-notes](), [updates](), [visual-studio](), [visual-studio-2026](), [windows](), [winforms]() ### AI overview .NET 11 Release Candidate 1 is available with a go-live support license. It includes updates across the runtime, SDK, MSBuild, NuGet, C#, F#, ASP.NET Core, .NET MAUI, and Windows Forms. ### Source excerpt .NET 11 Release Candidate 1 is available with improvements across libraries, runtime, SDK, MSBuild, NuGet, C#, F#, ASP.NET Core, .NET MAUI, and Windows Forms. The post Announcing .NET 11 Release Candidate 1 appeared first on .NET Blog. ## .NET Conf 2026 Community Days Call for Presenters Is Open DevFeed: [.NET Conf 2026 Community Days Call for Presenters Is Open]() Original publisher: [Read original article]() Author: Javier Lozano, Chris Sfanos, Jon Galloway Published: 2026-09-08T20:30:00Z Content type: news Language: en Sources: [.NET Blog]() Topics: [.NET]() Tags: [call-for-presenters](), [community](), [conference](), [net](), [net-conf](), [virtual-event]() ### AI overview The .NET Conf 2026 Community Days call for presenters invites proposals for community-led sessions about building with .NET and software development practices. ### Source excerpt Submit your session proposal for the community-led .NET Conf 2026 Community Days by October 6, 2026. The post .NET Conf 2026 Community Days Call for Presenters Is Open appeared first on .NET Blog. ## .NET and .NET Framework September 2026 servicing releases updates DevFeed: [.NET and .NET Framework September 2026 servicing releases updates]() Original publisher: [Read original article]() Author: Rahul Bhandari (MSFT), Tara Overfield Published: 2026-09-08T20:00:00Z Content type: release Language: en Sources: [.NET Blog]() Topics: [.NET](), [releases]() Tags: [asp-net-core](), [maintenance-updates](), [net](), [net-framework](), [release-notes](), [releases](), [security](), [september-2026](), [updates]() ### AI overview September 2026 servicing releases for .NET and .NET Framework provide security and non-security fixes. The post lists updated ASP.NET Core, Entity Framework Core, and Runtime versions across .NET 10, 9, and 8 release lines. ### Source excerpt A recap of the latest servicing updates for .NET and .NET Framework for September 2026. The post .NET and .NET Framework September 2026 servicing releases updates appeared first on .NET Blog. ## Today I will... find hidden latency across a distributed .NET application DevFeed: [Today I will... find hidden latency across a distributed .NET application]() Original publisher: [Read original article]() Author: Justin Yoo Published: 2026-09-08T16:00:22Z Content type: tutorial Language: en Sources: [Visual Studio Blog]() Topics: [.NET](), [Processes](), [GitHub Copilot]() Tags: [copilot](), [github-copilot](), [github-copilot-profiler-agent](), [latency](), [net](), [performance](), [processes](), [productivity](), [profile](), [visual-studio](), [visual-studio-2026](), [visual-studio-profiler]() ### AI overview A Visual Studio profiling walkthrough for finding hidden latency in a distributed .NET application by isolating the process responsible for a slow interaction and determining whether it is computing or waiting. ### Source excerpt When a distributed application feels slow, the user sees one delay. The code behind that delay may run across a web frontend, backend services, databases, and external APIs. If you profile only the frontend while the backend is slow, the profiler can show that the frontend is healthy without revealing the actual bottleneck. This article [...] The post Today I will... find hidden latency across a distributed .NET application appeared first on Visual Studio Blog. ## dotInsights | September 2026 DevFeed: [dotInsights | September 2026]() Original publisher: [Read original article]() Author: Rachel Appel Published: 2026-09-08T14:16:12Z Content type: article Language: en Sources: [The JetBrains Blog]() Topics: [.NET](), [Software Engineering](), [AI Development](), [ASP.NET Core](), [Uno Platform](), [Model Context Protocol]() Tags: [ai](), [asp-net-core](), [c-sharp](), [community](), [dotinsights](), [mcp](), [net](), [net-11](), [net-tools](), [september-2026](), [uno-platform]() ### AI overview A dotInsights newsletter roundup of recent .NET and software-development articles, with a note about the open-source C# Roslyn compiler and links covering performance, security, AI, web development, architecture, and tooling. ### Source excerpt Did you know? Fun fact: The C# compiler (Roslyn) is open source and written in C#. It exposes APIs to analyze and generate code. Welcome to dotInsights by JetBrains! This newsletter is the home for recent .NET and software development related information. 🔗 Links Here's the latest from the developer community. ☕ Coffee Break Take [...] ## Client-Side SDK Generation with VMware Cloud Foundation OpenAPI Specs DevFeed: [Client-Side SDK Generation with VMware Cloud Foundation OpenAPI Specs]() Original publisher: [Read original article]() Author: vmwareblogs Published: 2026-09-07T09:38:44Z Content type: tutorial Language: en Sources: [VMware Blogs]() Topics: [OpenAPI Specification](), [SDKs](), [.NET](), [C#](), [developer tooling](), [Java](), [Python](), [PowerShell]() Tags: [apis](), [cli](), [cloud](), [cloud-infrastructure](), [csharp](), [developer](), [developer-tooling](), [docker](), [home-page](), [java](), [net](), [openapi](), [powershell](), [programming](), [programming-language](), [python](), [rest](), [rest-api](), [sdk](), [specifications](), [vcf-9-0](), [vcf-9-1](), [vcf-sdk]() ### AI overview This guide explains how to generate a strongly typed .NET C# client SDK from VMware Cloud Foundation and vSphere OpenAPI specifications. It covers OpenAPI Generator, installation options, large specification handling, API-surface scoping, and the REST and JSON-RPC interfaces targeted by the example. ### Source excerpt Starting with VMware Cloud Foundation (VCF) 9.0, VMware officially publishes OpenAPI specifications for VCF APIs. This is a major milestone for developers, enabling you to consume VCF APIs using your programming language of choice. VMware provides first-class developer tooling such as VCF PowerCLI for PowerShell users and the VCF SDK offering Java and Python bindings. ... Continued The post Client-Side SDK Generation with VMware Cloud Foundation OpenAPI Specs appeared first on VMware Blogs. ## The hidden work of modernizing Malwarebytes DevFeed: [The hidden work of modernizing Malwarebytes]() Original publisher: [Read original article]() Author: Anna Tukhtarova Published: 2026-09-04T17:15:42Z Content type: article Language: en Sources: [Malwarebytes]() Topics: [.NET](), [migration](), [Endpoint Security & XDR](), [Operating system]() Tags: [diagnostics](), [drivers](), [endpoint-security](), [engineering](), [inside-malwarebytes](), [migration](), [modernization](), [net](), [security]() ### AI overview The article explains Malwarebytes' migration of its managed Windows components to .NET 10 and why runtime and dependency upgrades require security-feature-level rigor in endpoint software. ### Source excerpt Why disciplined dependency modernization is one of the highest-leverage engineering investments a security product can make. ## Test what you ship: MSTest and Native AOT DevFeed: [Test what you ship: MSTest and Native AOT]() Original publisher: [Read original article]() Author: Amaury Levé Published: 2026-09-03T18:00:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [native aot](), [trimming](), [.NET](), [Code generation](), [Deployment]() Tags: [deployment](), [generation](), [mstest](), [native-aot](), [net](), [source-generators](), [testing](), [trimming]() ### AI overview MSTest 4.4 uses source generation to let test projects run as Native AOT executables, helping teams test under the same trimming and deployment constraints as their applications. The article explains that this can reveal application issues such as reflection-dependent serialization that managed test runs may miss. ### Source excerpt MSTest source generation lets test projects use the same Native AOT and trimming deployment model as the applications they validate, while reducing reflection on the test execution path. The post Test what you ship: MSTest and Native AOT appeared first on .NET Blog. ## Build a Video Chat App with ASP.NET Core and Angular using Twilio Video DevFeed: [Build a Video Chat App with ASP.NET Core and Angular using Twilio Video]() Original publisher: [Read original article]() Author: Donal Toomey Published: 2026-09-03T00:00:00Z Content type: tutorial Language: en Sources: [Twilio Blog]() Topics: [ASP.NET Core](), [Angular](), [SignalR](), [real-time](), [.NET](), [Single-page application (SPA)](), [App]() Tags: [angular](), [asp-net-core](), [developer-insights](), [node-js](), [real-time](), [sdk](), [signalr](), [tutorial](), [twilio-video](), [video-chat-app]() ### AI overview A tutorial for building a group video chat application with an ASP.NET Core Web API and an Angular single-page app using Twilio Programmable Video. It covers minting access tokens, listing active rooms, selecting media devices, rendering participants, and sending live room updates through SignalR. ### Source excerpt Build a real-time group video chat app with ASP.NET Core, Angular, and Twilio Programmable Video. Mint access tokens, list rooms, and push live updates with SignalR on current .NET and Angular. ## A Self-Baked Async FFI Framework for Rust C# Interop DevFeed: [A Self-Baked Async FFI Framework for Rust C# Interop]() Original publisher: [Read original article]() Author: Cynthia Dunlop Published: 2026-08-31T13:00:34Z Content type: article Language: en Sources: [ScyllaDB]() Topics: [Rust](), [Tokio](), [.NET](), [C#](), [scylladb](), [For the Love of Code]() Tags: [c-sharp](), [drivers](), [engineering](), [hackathon](), [interop](), [rust](), [scylladb]() ### AI overview The article describes ScyllaDB's effort to build a Rust-based driver architecture with thin language-binding layers, focusing on a C# driver. It explains the motivation for creating a custom asynchronous FFI framework to connect Rust's Tokio runtime with .NET's async runtime over the C ABI, after existing binding-generation tools proved insufficient for Rust-C# async interoperation. ### Source excerpt How we got tokio and .NET's async runtime talking to each other, over the C ABI ## How Uno Platform uses .NET, MCP, and AI to build high quality apps DevFeed: [How Uno Platform uses .NET, MCP, and AI to build high quality apps]() Original publisher: [Read original article]() Author: Sam Basu Published: 2026-08-27T17:00:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [.NET](), [AI-assisted coding]() Tags: [ai](), [ai-agents](), [api](), [browser](), [c-sharp](), [cross-platform](), [developer-stories](), [docs](), [documentation](), [github-copilot](), [http](), [mcp](), [model-context-protocol](), [net](), [server](), [servers](), [skiasharp](), [tooling](), [uno-platform](), [xaml]() ### AI overview Uno Platform describes using two C# Model Context Protocol servers to give AI agents current documentation and the ability to inspect and drive running cross-platform .NET apps. ### Source excerpt How Uno Platform built two Model Context Protocol servers in C# so AI agents can ground themselves in real documentation and then see and drive a running cross-platform .NET app. The post How Uno Platform uses .NET, MCP, and AI to build high quality apps appeared first on .NET Blog. ## VSLive! @ Microsoft HQ: Developer Takeaways and Must-Watch Sessions DevFeed: [VSLive! @ Microsoft HQ: Developer Takeaways and Must-Watch Sessions]() Original publisher: [Read original article]() Author: James Rempt Published: 2026-08-27T14:00:09Z Content type: article Language: en Sources: [Visual Studio Blog]() Topics: [AI-assisted coding](), [.NET](), [Developer Tools](), [debugging](), [WinForms]() Tags: [ai](), [events](), [github-copilot](), [modernization](), [net](), [visual-studio]() ### AI overview A VSLive! @ Microsoft HQ recap highlights developer discussions about AI-assisted development, Visual Studio fundamentals, and .NET modernization. ### Source excerpt VSLive! @ Microsoft HQ 2026 was one of the most energizing VSLive! events I've attended. What stood out was the level of engagement over five days of learning and conversation from July 27 through July 31. Developers came ready to dig into the future of Visual Studio, .NET, and AI-assisted software development, and many Microsoft engineers and product managers were there to have those conversations directly. If you weren't able to [...] The post VSLive! @ Microsoft HQ: Developer Takeaways and Must-Watch Sessions appeared first on Visual Studio Blog. ## What's new in the ClickHouse .NET Driver: the road from 1.0 to 1.3 DevFeed: [What's new in the ClickHouse .NET Driver: the road from 1.0 to 1.3]() Original publisher: [Read original article]() Author: Alex Soffronow Pagonidis Published: 2026-08-26T00:00:00Z Content type: article Language: en Sources: [ClickHouse Blog]() Topics: [clickhouse](), [.NET](), [data](), [configuration](), [observability](), [debugging]() Tags: [api](), [clickhouse](), [community](), [debugging](), [ecosystem](), [integrations](), [logs](), [net](), [observability](), [performance](), [pull-request](), [types](), [workflows]() ### AI overview The ClickHouse .NET Driver progressed from version 1.0 to 1.3 with type-safe POCO workflows, broader type support, improved serialization and mapping, performance improvements, configurable behavior, observability, and integrations across the .NET ecosystem. ### Source excerpt Discover how ClickHouse .NET Driver 1.1-1.3 adds type-safe POCO workflows, extensible serialization, broader type support, performance improvements, and official ecosystem integrations. ## .NET Conf 2026 - Save the Date DevFeed: [.NET Conf 2026 - Save the Date]() Original publisher: [Read original article]() Author: Jon Galloway Published: 2026-08-25T16:28:27Z Content type: news Language: en Sources: [.NET Blog]() Topics: [.NET Conf](), [.NET](), [C# 15](), [ASP.NET Core](), [Blazor](), [WebAssembly](), [Aspire](), [OpenAPI Specification](), [Model Context Protocol]() Tags: [asp-net-core](), [blazor](), [c-sharp-15](), [community](), [conference](), [event](), [mcp](), [net](), [net-11](), [net-conf](), [speakers](), [union-types](), [virtual-event](), [webassembly]() ### AI overview Microsoft announces .NET Conf 2026, a free online event running November 10-12, featuring community sessions and the launch of .NET 11. The article previews updates across .NET, including C# 15 union types, .NET MAUI, ASP.NET Core, Blazor, OpenAPI, Aspire, and the official MCP C# SDK. ### Source excerpt .NET Conf returns November 10-12, 2026, with three days of sessions, community, and the launch of .NET 11. The post .NET Conf 2026 - Save the Date appeared first on .NET Blog. ## From dotnet run to Foundry Hosted Agent in 3 lines of C# DevFeed: [From dotnet run to Foundry Hosted Agent in 3 lines of C#]() Original publisher: [Read original article]() Author: Bruno Capuano Published: 2026-08-24T19:00:00Z Content type: tutorial Language: en Sources: [.NET Blog]() Topics: [hosted-agents](), [Microsoft Agent Framework](), [Azure](), [C#](), [.NET](), [NuGet](), [Entra ID](), [Containers](), [telemetry]() Tags: [agent](), [agents](), [ai](), [azd](), [azure](), [blog](), [c-sharp](), [csharp](), [dotnet](), [entra-id](), [framework](), [hosted-agents](), [hosting](), [infrastructure](), [microsoft](), [microsoft-agent-framework](), [microsoft-foundry](), [net](), [nuget](), [observability](), [post](), [production]() ### AI overview This tutorial shows how to deploy a Microsoft Agent Framework console agent as a Foundry Hosted Agent using one NuGet package, three lines of C#, and two commands. Foundry provides managed Azure infrastructure, scaling, identity, session state, observability, and lifecycle management. ### Source excerpt You built an agent with Microsoft Agent Framework and it works great on your machine. Now what? Turns out deploying it to production takes 1 NuGet package, 3 lines of C#, and 2 commands. Let's do it. The post From dotnet run to Foundry Hosted Agent in 3 lines of C# appeared first on .NET Blog. ## Explore new features available in C# 15 preview DevFeed: [Explore new features available in C# 15 preview]() Original publisher: [Read original article]() Author: Bill Wagner Published: 2026-08-24T17:00:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [C# 15](), [.NET](), [union types](), [.NET 11 Preview 7]() Tags: [blog](), [c-sharp](), [c-sharp-15](), [closed-hierarchies](), [dotnet](), [features](), [net](), [net-11](), [net-11-preview-7](), [union-types]() ### AI overview An overview of the new features in C# 15, which ships with .NET 11. The article covers union types, closed hierarchies, the preview memory-safety redesign, and several smaller language changes. ### Source excerpt C# 15 ships with .NET 11. It adds union types, closed hierarchies, a preview of the updated unsafe model, and a few smaller changes that remove everyday ceremony. The post Explore new features available in C# 15 preview appeared first on .NET Blog. [Next page]()