15 KiB
.NET Core 3.0.0 Preview 3 - March 06, 2019
.NET Core 3.0.0 Preview 3 is available for download and usage in your environment. This release includes .NET Core 3.0.0 Preview 3 and .NET Core SDK 3.0.100 Preview 3.
If Visual Studio is your preferred environment, you will need Visual Studio 2019 Preview 3 to take full advantage of the .NET Core 3.0 Preview.
Blog Round up
The .NET Core SDK 3.0.100 Preview 3 includes .NET Core 3.0 Runtime so downloading the runtime packages separately is not needed when installing the SDK. After installing the .NET Core SDK 3.0.100 preview, the following command will show that you're running version 3.0.100-preview-010431
of the tools.
If you use Visual Studio for development work, Visual Studio 2019 is required.
dotnet --version
Your feedback is important and appreciated. We've created an issue at dotnet/core #2389 for your questions and comments.
Downloads
SDK Installer1 | SDK Binaries1 | Runtime Installer | Runtime Binaries | ASP.NET Core Runtime | |
---|---|---|---|---|---|
Windows | x86 | x64 | x86 | x64 | ARM | x86 | x64 | x86 | x64 | ARM | x86 | x64 | ARM | Hosting Bundle2 |
macOS | x64 | x64 | x64 | x64 | x641 |
Linux | Snap Install | x64 | ARM | ARM64 | x64 Alpine | - | x64 | ARM | ARM64 | x64 Alpine | x641 | ARM1 | ARM641 | x64 Alpine1 |
RHEL6 | - | x64 | - | x64 | - |
Checksums | SDK | - | Runtime | - | - |
Symbols | - | - | Runtime | Shared Framework | Setup | - | ASP.NET Core |
- Includes the .NET Core and ASP.NET Core Runtimes
- For hosting stand-alone apps on Windows Servers. Includes the ASP.NET Core Module for IIS and can be installed separately on servers without installing .NET Core runtime.
Docker Images
The .NET Core Docker images have been updated for this release. Details on our Docker versioning and how to work with the images can be seen in "Staying up-to-date with .NET Container Images".
The following repos have been updated
Notable Changes in 3.0.0 Preview 3
- ASP.NET Core 3.0 Preview 3 (bugs, features)
- Entity Framework Core 3.0 Preview 3
- .NET Core SDK installers will now Upgrade in Place
- Container image availability in the Microsoft Container Registry (MCR)
- Docker and cgroup memory Limits
- Index and Range
- F# 4.6
- dotnet fsi preview
- .NET Standard 2.1
- Work continues on WinForms and WPF
The following are the specific changes made in Preview 3:
Added to Index
:
public bool IsFromEnd { get; }
public Index(int value, bool fromEnd = false);
Removed from Index
:
public Index(int value, bool fromEnd);
public bool FromEnd { get; }
Added to Index
:
public static Index End { get; }
public static Index Start { get; }
public static Index FromEnd(int value);
public static Index FromStart(int value);
public int GetOffset(int length);
Added to Range
:
public static Range All { get; }
public static Range StartAt(Index start);
public static Range EndAt(Index end);
Removed from Range
:
public static Range All();
public static Range FromStart(Index start);
public static Range ToEnd(Index end);
Added to Range
:
public Range(Index start, Index end);
public Range.OffsetAndLength GetOffsetAndLength(int length);
Added the following Range and Index APIs to various types:
public readonly struct Memory<T>
{
public Memory<T> this[Range range] { get; }
public Memory<T> Slice(Index startIndex);
public Memory<T> Slice(Range range);
}