Weekly .NET Roundup: .NET 11 Preview, Servicing, and Tooling

by TechHub

Programming languages and tools see several updates this week, with new features in .NET and TypeScript, and productivity improvements for VS Code.

This Week's Overview

.NET Ecosystem Updates

.NET 11 Preview 1 brings a range of updates: Zstandard compression, BFloat16 data type, better ZipArchiveEntry operations, new hard-link and crypto APIs, and collection improvements. Runtime features include async main, WebAssembly CoreCLR, interpreter/JIT updates, and more hardware support. SDK tools see improved device selection (dotnet run), easier test syntax, better watch/hot reload, static analyzers, and enhanced MSBuild logging. The languages get new collections (C#), parallel F# builds, and speed increases. ASP.NET Core/Blazor gets a new UI, SignalR, and better cert management. .NET MAUI now uses CoreCLR for Android. Entity Framework Core is updated for complex JSON column types. Both VS 2026 and VS Code C# Dev Kit support these changes. February’s .NET and .NET Framework servicing update targets supported versions and addresses CVE-2026-21218. Guidance is provided for installation, patch verification, and changelog review. These continue last week’s trend toward platform modernization, with regular previews and focus on compatibility.

TypeScript 6.0 Beta and Language Modernization

TypeScript 6.0 Beta will be the last version built in JavaScript before 7.0 moves to Go. Updates include changes to context-sensitive function declarations, easier Node.js imports, combined resolution/output settings, and deterministic type ordering via --stableTypeOrdering. Several features are now deprecated: strict mode is default, modules align to current standards, legacy settings are dropped, iterables are always available in DOM libraries, and explicit types fields are required. Migration is eased with tools like ts5to6 and configuration tips. Developers are urged to begin testing their codebases and try out 7.0 Go-native builds for feedback and confidence. These updates continue last week’s focus on rapid TypeScript iteration, improved compatibility with AI code tools, and preparing developer teams for future platform updates.

Visual Studio Code Enhancements: AI Agents and Productivity Tools

VS Code 1.109 adds usability and workflow improvements. You can now “Ask Questions” in the editor, use agent skills for code automation, and run subagents in parallel for advanced tasks. Editor changes include double-click selection of brackets and strings, a browser preview, and upgraded MCP cloud app support. A video demo shows agent steering in VS Code Insiders, letting you queue and control agent tasks directly for repeatable, controlled workflow automation. These additions build on the theme of expanded automation, agent control, and integration for both new and advanced users.

Other Coding News

A recent Rx.NET v7 live session covers new asynchronous APIs and event stream features, adoption recommendations, and future plans, all presented by Rx.NET team engineers.