.NET Core 3.0 Hits Release Candidate Phase

Posted on September 17, 2019 by Paul Thurrott in Dev with 19 Comments

Microsoft has announced the release of .NET Core 3.0 Release Candidate (RC1), a near-final version of its portable software platform. The software giant expects to deliver the final version of .NET Core 3 next week at its .NET Conf virtual event.

“We’ve focused on polishing .NET Core 3.0 for a final release,” Microsoft’s Richard Lander explains. “We are now getting very, very close.”

If you’ve been following .NET Core 3 development, you know that Microsoft didn’t originally plan to ship an RC version; instead, the earlier Preview 9 release was expected to be the last major milestone before the final version. But Microsoft added the RC1 release to sync up with Visual Studio 2019 16.3 Preview 4 and Visual Studio for Mac 8.3, both of which were just released as well.

“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,” Lander noted, adding that the team should have seen this coming.

Regardless, .NET Core 3.0 RC1 is fully supported by Microsoft and can be used in production. Microsoft originally announced .NET Core 3.0 this past May at Build 2019, and the biggest change is support for Windows Presentation Foundation (WPF), Windows Forms, and Universal Windows Platform (UWP) applications on Windows. Microsoft also revealed at the time that its next release, .NET 5.0, will be based on .NET Core and will replace the legacy .NET platform. (This seems similar to when NT 5.0 “became” Windows and was renamed to Windows 2000.)

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Comments (19)

19 responses to “.NET Core 3.0 Hits Release Candidate Phase”

  1. martinusv2

    Oh, I thought It would be fully available starting september 23-25. Still has time until end of promised september realease ;)


    But without designer for Winform / WPF

  2. dontbeevil

    so looks like once again I was banned, as usual no notifications and no breaking rules:


    I simply pointed out what's written in this article: "and the biggest change is support for Windows Presentation Foundation (WPF), Windows Forms, and Universal Windows Platform (UWP) applications on Windows"


    but of course paul didn't appreciate it, as he's continuing for some reasons his personal war against UWP, at least on twitter there is enough people that start to understand this


  3. nordyj

    Super stoked to see this RTM released next week!

  4. dontbeevil

    "nd the biggest change is support for Windows Presentation Foundation (WPF), Windows Forms, and Universal Windows Platform (UWP) applications on Windows. Microsoft also revealed at the time that its next release, "


    strange... UWP is dead according to someone

  5. christian.hvid

    .NET Core 3.0 also includes the first official release of Blazor, a C#/.NET SPA framework that can run either client-side (through WebAssembly magic) or server-side (in a shadow DOM that syncs with the browser through SignalR). This hasn't really gained the attention it deserves: just imagine writing a fully dynamic web application without a single line of JavaScript...

  6. kshsystems

    is there a new release of powershell Core that is waiting for this?

    • mrdrwest

      In reply to kshsystems:


      The latest version is here:

      https://devblogs.microsoft.com/powershell/powershell-7-preview-3/


      I installed it and configured it to launch in Windows Terminal.


      Remember, this is not Windows PowerShell. There are some features that are not available in PowerShell Core e.g. WMI cmdlets, Windows Cipher suite cmdlets, etc. continue to use Windows PowerShell for these.


      Both versions can work side-by-side.

  7. GavinWilliams

    What parts of UWP are being supported now anyway? I can't actually find any details about .Net Core 3 supporting any UWP/WinRT features beyond what was already available. And I thought better UWP support wasn't coming till next year.

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