.NET Core 3.0 Preview 7 has been released, Visual Studio users need Visual Studio 2019,16.3 preview 1 (later this week) in order to use .NET Core 3.0 preview 7, Microsoft.NET site has been updated to .NET Core preview 7 3.0 . All symbols .NET Core version for all platforms are now available from Nuget or public symbol server. Listed below are some of the updates introduced in Preview 7:
.NET Core SDK improvements size
.NET Core SDK with .NET Core 3.0 is much smaller than the main reason is to change the way of building the SDK, instead various types (refer to the assemblies, frame, template) Construction of "Package." In previous versions (including .NET Core 2.2), the package is constructed from NuGet the SDK, which contains many of the workpiece does not need to waste a lot of space and of.
SOS update:
SOS is no longer as part of .NET Core runtime, SOS now published separately and works with any version of the runtime. Installation instructions can be found in the new SOS https://github.com/dotnet/diagnostics#installing-sos
NetTrace replace NetPerf format
NetPerf format is outdated, it has now been replaced by NetTrace format. Visual Studio 2019 support this format, from 16.3 preview 1, TraceEvent 2.0.43 and 2.0.44 PerfView start. The most obvious change is the trace file should be smaller than before, it is faster to write, to support some of the new event metadata, and to resolve some of the scenes more efficiently.
CoreCLR: bug | Characteristics
CoreFX: bug | Characteristics
Core ASP.NET: bug | Characteristics
Docker Images
It has been updated version of the .NET Core Docker image
In addition, Debian 10 has been released (GA), and will be supported by .NET Core 3.0.
Its team said, NET Core3.0 version is nearing completion, will no longer build new features, only concerned with stability and reliability.
Detail View: https://github.com/dotnet/core/blob/master/release-notes/3.0/preview/3.0.0-preview7.md