.NET 3.0.3 servicing release
.NET 3.0.3 was released on 2020-02-18. It ships .NET Runtime 3.0.3, ASP.NET Core Runtime 3.0.3, SDK 3.0.103. .NET 3.0 has reached end of support (2020-03-03) and no longer receives fixes.
What was released From the source
According to Microsoft's official .NET release metadata, .NET 3.0.3 was published on 2020-02-18. The components and versions in this release are:
- Release: .NET 3.0.3
- Release date: 2020-02-18
- .NET Runtime: 3.0.3
- ASP.NET Core Runtime: 3.0.3
- SDK versions: 3.0.103
- C# language version: 8.0
- Release type: STS
- Support phase: End of life
- End of support: 2020-03-03
- Security release: No
At a glance · .NET release
Out of support since 3 Mar 2020
Why it matters Analysis
Servicing releases deliver reliability and compatibility fixes. Microsoft's .NET support policy expects applications to run on the latest patch of a supported version to remain in support.
.NET 3.0 is out of support since 2020-03-03: Microsoft no longer ships security fixes for it. Applications still on this version should move to a supported .NET release.
Who should care Analysis
- Teams running .NET 3.0 applications in production or testing
- Owners of container images built on .NET 3.0 base images
- Teams that publish self-contained or single-file applications
- Developers and CI pipelines that pin an SDK version in global.json
How to update Analysis
- Check installed versions with
dotnet --list-runtimesanddotnet --list-sdks. - Plan an upgrade to a supported .NET version; the official download page lists the versions that are still in support.
- Update target frameworks, rebuild, and run your test suite before moving production to the new version.
Sources and further reading
- .NET 3.0.3 release notes (original source)
- .NET 3.0 release metadata (JSON) (official)
- Download .NET 3.0 (official)
- .NET support policy (documentation)
Original: “.NET 3.0.3 released”, .NET release metadata, published 18 Feb 2020, retrieved 16 Oct 2026. This article was generated from the official source using our structured templates and passed automated quality checks. Spotted a mistake? See our corrections policy.