Vigia

Microsoft .NET 2.1 end of life (EOL) date and support status

End of life End of life since 2021-08-21 (1874 days ago)

Upgrade: Microsoft .NET 2.1 no longer receives fixes. Supported cycles: 10, 9, 8.

ProductMicrosoft .NET
Version cycle2.1
StatusEnd of life
Released2018-05-30
LTSyes
Active support until—
End of life2021-08-21
Latest version2.1.30 (2021-08-19)
Last verified2026-10-08

All Microsoft .NET versions → · Source: endoflife.date

Frequently asked questions

Is Microsoft .NET 2.1 end of life?

Yes. End of life since 2021-08-21 (1874 days ago). It no longer receives security or bug fixes.

When does Microsoft .NET 2.1 reach end of life?

Microsoft .NET 2.1 reached end of life on 2021-08-21.

When was Microsoft .NET 2.1 released?

Microsoft .NET 2.1 was first released on 2018-05-30.

What is the latest Microsoft .NET 2.1 version?

The latest 2.1 release is 2.1.30, published on 2021-08-19.

Is Microsoft .NET 2.1 an LTS release?

Yes.

Give your AI agent these facts

Vigia is a free MCP server: your coding agent checks versions, breaking changes and vulnerabilities before it writes code. No signup, no API key.

claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp

Add to CursorAdd to VS Code★ Star on GitHub

Any other MCP client
{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Agent skill (SKILL.md): tells the agent when to use Vigia · GitHub Action for pull requests

For agents

GET https://vigia.coredls.cloud/v1/eol/dotnet/2.1