.NET Core 3.0 のリリースなので、新機能を復習してみたいと思ってまず、新機能の名前だけでも並べてみようと思いました。
.NET Core 3.0 (プレビュー 9) の新機能はこちらに情報があります。
このページから各プレビューバージョンのアナウンスのブログ記事へのリンクが張られています。
リンク先のブログサイト
リリースノートもあるのですが、微妙に表現が違う場合もあって詳細までは書いていないので、アナウンスブログを見ていきます。
■ 機能（名？）とバージョン
| Preview 1 | |
| .NET Framework 4.8 | |
| Windows Desktop Comes to .NET Core | |
| WPF, Windows Forms, and WinUI Open Sourced | |
| WPF and Windows Forms | |
| Applications now have executables by default | |
| dotnet build now copies dependencies | |
| Local dotnet tools | |
| Introducing a fast in-box JSON Reader | |
| Ranges and indices | |
| Async streams | |
| System.Buffers.SequenceReader | |
| Serial Port APIs now supported on Linux | |
| GPIO, PWM, SPI and I2C APIs now available | |
| Supporting TLS 1.3 and OpenSSL 1.1.1 now Supported on Linux | |
| Cryptography | |
| Cryptographic Key Import/Export | |
| More BCL Improvements | |
| Default implementations of interface members | |
| Tiered Compilation | |
| Assembly Metadata Reading with MetadataLoadContext | |
| ARM64 | |
| Platform Support | |
| Preview 2 | |
| C# 8 | |
| Using Declarations | |
| Switch Expressions | |
| Async streams | |
| IEEE Floating-point improvements | |
| .NET Platform Dependent Intrinsics | |
| Introducing a fast in-box JSON Writer & JSON Document | |
| Utf8JsonWriter | |
| JsonDocument | |
| GPIO Support for Raspberry Pi | |
| Local dotnet tools | |
| Assembly Unloadability | |
| Windows Native Interop | |
| WPF and Windows Forms | |
| Visual Studio support | |
| MSIX Deployment for Desktop apps | |
| Install .NET Core 3.0 Previews on Linux with Snap | |
| Platform Support | |
| Preview 3 | |
| .NET Core SDK installers will now Upgrade in Place | |
| Docker and cgroup memory Limits | |
| Docker Publishing Update | |
| Index and Range | |
| .NET Standard 2.1 | |
| F# Update | |
| F# 4.6 | |
| dotnet fsi preview | |
| AssemblyDependencyResolver | |
| DLLMap and Native image resolver events | |
| .NET Core Windows Desktop Project Update | |
| High DPI for Windows Forms Applications | |
| Entity Framework Project Update | |
| Preview 4 | |
| WinForms Chart control now available for .NET Core | |
| Enabling the Chart control in your .NET project | |
| WPF | |
| Improving .NET Core Version APIs | |
| Tiered Compilation (TC) Update | |
| HTTP/2 Support | |
| SDK Docker Images Contain PowerShell Core | |
| Better support Docker CPU (–cpus) Limits | |
| Round up the value of the CPU limit | |
| Thread pool honors CPU limits | |
| Making GC Heap Sizes Smaller by default | |
| Better support for many proc machines | |
| Hardware Intrinsic API changes | |
| Assembly Load Context Improvements | |
| Preview 5 | |
| WPF and Windows Forms Update | |
| Introducing the new SqlClient | |
| What is new in Microsoft.Data.SqlClient? | |
| What does this mean for System.Data.SqlClient? | |
| Publishing Single EXEs | |
| Introducing the JSON Serializer (and an update to the writer) JSON | | Serializer | |
| Utf8JsonWriter Design Change | |
| Index and Range | |
| New Japanese Era (Reiwa) | |
| Hardware Intrinsic API changes | |
| .NET Core runtime roll-forward policy update | |
| Making.NET Core runtime docker images for Linux smaller | |
| Docker Updates | |
| AssemblyLoadContext Updates | |
| GC Large page support | |
| Preview 6 | |
| WPF and Windows Forms update | |
| Alpine Docker images | |
| Event Pipe improvements | |
| Optimize your .NET Core apps with ReadyToRun images | |
| Sample performance numbers | |
| ReadyToRun images, explained | |
| Instructions | |
| Cross platform/architecture compilations | |
| Assembly linking | |
| Using the Linker and ReadyToRun Together | |
| Native Hosting sample | |
| HTTP/2 support in HttpClient | |
| Preview 7 | |
| .NET Core SDK Size Improvements | |
| Preview 8 | |
| Preview 9 | |
