Vigia

Kotlin 1.9 end of life (EOL) date and support status

End of life End of life since 2024-05-21 (870 days ago)

Upgrade: Kotlin 1.9 no longer receives fixes. Supported cycles: 2.4.

ProductKotlin
Version cycle1.9
StatusEnd of life
Released2023-07-06
Active support until—
End of life2024-05-21
Latest version1.9.25 (2024-07-19)
Last verified2026-10-08

All Kotlin versions → · Source: endoflife.date

Frequently asked questions

Is Kotlin 1.9 end of life?

Yes. End of life since 2024-05-21 (870 days ago). It no longer receives security or bug fixes.

When does Kotlin 1.9 reach end of life?

Kotlin 1.9 reached end of life on 2024-05-21.

When was Kotlin 1.9 released?

Kotlin 1.9 was first released on 2023-07-06.

What is the latest Kotlin 1.9 version?

The latest 1.9 release is 1.9.25, published on 2024-07-19.

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/kotlin/1.9