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# Microsoft rolls out .NET 11 Preview 7

**[InfoWorld](https://daily.dev/sources/infoworld)** · 2 min read · 0 upvotes · 0 comments

## Summary

Microsoft released .NET 11 Preview 7, adding tiered compilation for async methods, new progress bringing CoreCLR to WebAssembly via a portable interpreter-plus-R2R model, and C# 15 features like labeled break/continue and Try-Both matching for union types. Other additions include HttpContent compression wrappers, expanded dotnet test device support, and five new Blazor analyzers. General availability is expected in November, following the July 14 Preview 6 release.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://www.infoworld.com/article/4208694/microsoft-rolls-out-dotnet-11-preview-7.html>

## Questions this post answers

### What does C# 15 change about break and continue statements?

C# 15 allows break and continue to name an enclosing loop or switch, letting developers exit or continue an outer construct directly from an inner one. This removes the need to thread state through a flag variable or use goto to achieve the same control flow across nested loops or switch statements.

_Track new C# language features like this on daily.dev as you plan a .NET upgrade._

### How does .NET 11 handle async methods differently under tiered compilation?

In .NET 11 Preview 7, async methods are compiled through the tiered compilation pipeline instead of always running tier0 code. Previously async methods bypassed tiering and stayed on code optimized for compilation speed rather than steady-state throughput, so this change lets runtime-async close the performance gap with the compiler-generated state-machine model.

_Follow runtime performance changes like this on daily.dev before you upgrade production async code._

### What progress has CoreCLR made on WebAssembly in .NET 11?

CoreCLR on WebAssembly in .NET 11 Preview 7 now runs the full CoreCLR libraries test suite end-to-end, using a portable interpreter-plus-R2R (ReadyToRun) model that reuses RyuJIT for ahead-of-time code generation. Startup for this configuration first worked in Preview 6, with test suite coverage completed by Preview 7.

_Watch CoreCLR-on-WebAssembly milestones like this on daily.dev if you're targeting .NET for the browser._

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---

Tags: [#microsoft](https://daily.dev/tags/microsoft), [#.net](https://daily.dev/tags/.net), [#c#](https://daily.dev/tags/c#), [#webassembly](https://daily.dev/tags/webassembly), [#aspnet](https://daily.dev/tags/aspnet)

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