System.IO: Releases, patches & end-of-life
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Lifecycle guide for System.IO from Microsoft

All releases, patches, maintenance and support periods at a glance

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📅 Last update on 2026-02-14

What is System.IO?

Automate product release and end-of-life managementProvides 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.
 

The entire lifecycle of System.IO

The following figure shows you the visualised product life cycle of System.IO. You can see all releases with the latest patch version, the long-term support characteristics (orange flag in the green circle, the periods for version provision, maintenance and support.
System.IO (Microsoft) release, version and end-of-life information
XSystem.IO (Microsoft) release, version and end-of-life information
Figure: Release, patch and end-of-life cycle of product System.IO (Microsoft)
 

Facts and figures about System.IO

Product
System.IO
Vendor
Microsoft
Latest version
4.3.0
Number of releases
1
Number of versions
17
Number of unstable versions
13
Number of versions affected by CVE
0
Licence details
http://go.microsoft.com/fwlink/?LinkId=329770
 
 

Questions or interested? Talk to me!


Lukas Böttcher
Lukas Böttcher
Business Development Manager
P:  +49-30-221986-51
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