News

Microsoft Squeezes In One More Surprise .NET Core 3.0 Preview: RC1

After saying .NET Core 3.0 Preview 9 was the final preview before next week's official general availability (GA) launch, Microsoft today issued a surprise Release Candidate 1 (RC1) offering.

.NET Core 3.0 is a long-awaited, important milestone on the company's transition from the traditional Windows-only .NET Framework to a more modern, open source implementation. Next year, everything will be consolidated into one .NET 5 framework.

The RC1 was necessitated by today's release of Visual Studio 2019 16.3 Preview 4, which is synced with the .NET Core SDK.

"It is critical that the .NET Core SDK version that is part of any Visual Studio release includes the same toolset in order to deliver a compatible experience in all scenarios," Microsoft said.

"We should have realized that there was a high likelihood that we might need to release changes to accommodate another Visual Studio preview. Making fixes in the .NET toolset like this is standard operating procedure. We could have released a new .NET Core SDK and only delivered it via Visual Studio, however, we've broken people in the (now distant) past with that approach. As a result, when we release a new .NET Core SDK, we make it available for everyone in all the places."

Predictably, nothing much is new as the dev team focuses on polishing up existing features.

On the ASP.NET Core 3.0 side of things (which includes Blazor), Microsoft said "This release contains only a handful of bug fixes and closely represents what we expect to release for .NET Core 3.0."

The official GA release date will be Sept. 23 during the online .NET Conf.

About the Author

David Ramel is an editor and writer at Converge 360.

comments powered by Disqus

Featured

  • Mastering Blazor Authentication and Authorization

    At the Visual Studio Live! @ Microsoft HQ developer conference set for August, Rockford Lhotka will explain the ins and outs of authentication across Blazor Server, WebAssembly, and .NET MAUI Hybrid apps, and show how to use identity and claims to customize application behavior through fine-grained authorization.

  • Linear Support Vector Regression from Scratch Using C# with Evolutionary Training

    Dr. James McCaffrey from Microsoft Research presents a complete end-to-end demonstration of the linear support vector regression (linear SVR) technique, where the goal is to predict a single numeric value. A linear SVR model uses an unusual error/loss function and cannot be trained using standard simple techniques, and so evolutionary optimization training is used.

  • Low-Code Report Says AI Will Enhance, Not Replace DIY Dev Tools

    Along with replacing software developers and possibly killing humanity, advanced AI is seen by many as a death knell for the do-it-yourself, low-code/no-code tooling industry, but a new report belies that notion.

  • Vibe Coding with Latest Visual Studio Preview

    Microsoft's latest Visual Studio preview facilitates "vibe coding," where developers mainly use GitHub Copilot AI to do all the programming in accordance with spoken or typed instructions.

  • Steve Sanderson Previews AI App Dev: Small Models, Agents and a Blazor Voice Assistant

    Blazor creator Steve Sanderson presented a keynote at the recent NDC London 2025 conference where he previewed the future of .NET application development with smaller AI models and autonomous agents, along with showcasing a new Blazor voice assistant project demonstrating cutting-edge functionality.

Subscribe on YouTube