system.io
Provides base input and output (I/O) types, including System.IO.Stream, System.IO.StreamReader and System.IO.StreamWriter, that allow reading and writing to data streams Commonly Used Types: System.IO.Stream System.IO.EndOfStreamException System.IO.MemoryStream System.IO.StreamReader System.IO.StreamWriter System.IO.StringWriter System.IO.TextWriter System.IO.TextReader When using NuGet 3.x this package requires at least version 3.4.
Install
dotnet add package system.io --version 4.1.0
Install-Package system.io -Version 4.1.0
<PackageReference Include="system.io" Version="4.1.0" />
Frameworks
Dependencies
Adoption guide
A verified publisher signal is available. Assess fit from the package's supported frameworks, license and dependency graph rather than popularity alone.
No SPDX license expression is published. Review the license text and your organisation's policy before redistribution.
Compatibility metadata lists 16 target frameworks; confirm the exact target used by your application.
The published metadata declares 20 direct dependency entries across framework groups. Inspect the resolved dependency graph for your target framework.
How to read this guidance
Sources: published NuGet v3 registry metadata and explicit NuBrowse editorial guides. Refresh: package metadata is refreshed from NuGet when the page loads. Limit: this is not a security, legal or compatibility guarantee; validate the selected version in your project.
Useful next steps
Move from package metadata to a concrete selection or review workflow.