What’s New in .NET 7? Key Features, ARM64 Support, and Cloud‑Native Enhancements
Microsoft announced the official release of .NET 7 on November 9, highlighting major enhancements such as improved Base Class Library, native ARM64 support, expanded Linux and IBM Power compatibility, integrated .NET MAUI and Blazor updates, and streamlined container and Azure cloud‑native capabilities.
.NET 7 Release Overview
Microsoft announced that .NET 7 was officially released on November 9 and is now available for Windows, macOS, and Linux. This Standard Term Support (STS) release will be supported for 18 months.
Over 8,900 contributors made more than 28 k code contributions to the platform.
Key Platform Improvements
Base Class Library (BCL) – .NET 7 builds on .NET 6, simplifying the development experience, boosting developer productivity, and providing a unified set of libraries, runtime, and SDK.
The release adds tools for upgrading older projects, enhances cloud‑native development support, and streamlines container usage.
Product Highlights
.NET MAUI is now included in .NET 7, making it easier for developers to create mobile versions of their applications.
Blazor receives updates, including support for location‑change events, improved WebAssembly debugging, and built‑in OpenID Connect authentication.
To upgrade from .NET 6 to .NET 7, Microsoft provides the .NET Upgrade Assistant, offering step‑by‑step guidance, insights, and automation.
Architecture Support
Native ARM64 support improves performance on ARM machines with features such as L3 cache size estimation, LSE atomic instructions, and optimized intrinsic functions.
Linux enhancements include pre‑built ultra‑small container images and support for installing .NET 6 via apt install dotnet6 on Ubuntu 22.04.
.NET now also runs on IBM Power (ppc64le) for RHEL 8.7 and 9.1, in addition to x64 and s390x.
Azure and Container Integration
.NET 7 supports multiple Azure PaaS offerings, including App Service for Windows and Linux, Static Web Apps, Azure Functions, and container apps.
Developers can use dotnet publish to create containerized versions of their applications, simplifying deployment to the cloud.
Microsoft notes that containers are becoming the preferred deployment method for many companies, and .NET containers provide a smoother, more efficient experience.
For a complete list of .NET 7 features, visit the official Microsoft blog.
Compiled by Luo Yi
21CTO
21CTO (21CTO.com) offers developers community, training, and services, making it your go‑to learning and service platform.
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