Vigia

Microsoft .NET 9 end of life (EOL) date and support status

Supported Receives fixes until 2026-11-10 (in 33 days)

ProductMicrosoft .NET
Version cycle9
StatusSupported
Released2024-11-12
Active support until—
End of life2026-11-10
Latest version9.0.20 (2026-09-08)
Last verified2026-10-08

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

Frequently asked questions

Is Microsoft .NET 9 end of life?

No. Microsoft .NET 9 is supported. Receives fixes until 2026-11-10 (in 33 days).

When does Microsoft .NET 9 reach end of life?

Microsoft .NET 9 reaches end of life on 2026-11-10.

When was Microsoft .NET 9 released?

Microsoft .NET 9 was first released on 2024-11-12.

What is the latest Microsoft .NET 9 version?

The latest 9 release is 9.0.20, published on 2026-09-08.

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/9