Software Engineering
.NET 11 Preview 4 Is Now Available
.NET 11 Preview 4 gives engineering teams an early view of improvements arriving across Microsoft's application platform. The release spans runtime performance, developer tooling, web development, mobile workflows and data access.
A Broad Platform Preview
The preview includes library changes, runtime and JIT work, SDK quality-of-life updates and additions across ASP.NET Core. Mobile developers also gain dotnet watch support for Android and iOS projects.
Entity Framework Core continues to evolve too, with improvements including approximate vector search for SQL Server 2025 and deeper JSON mapping integration.
How Teams Should Approach It
Preview releases are useful for experimentation and compatibility checks rather than production rollout. Teams with shared libraries or framework-heavy applications can use the preview period to identify migration work early.
- Test representative applications in a separate branch
- Review runtime and SDK changes relevant to your workloads
- Validate third-party package compatibility
- Keep production environments on supported stable releases
