Ruby 2.1

This version has reached end of life and no longer receives updates.

End of Life Ruby health badge
Released

December 25, 2013

Active Support

Ongoing

End of Life

March 31, 2017

Latest Patch

2.1.10 (March 31, 2016)

About Ruby 2.1

Ruby 2.1 reached end of life over 8 years ago on March 31, 2017. It no longer receives security patches, bug fixes, or any form of official support. Running this version in production exposes your systems to unpatched vulnerabilities and growing incompatibility with modern libraries and tooling.

The recommended upgrade path is to Ruby 4.0. Since Ruby 2.1 is 4 major versions behind, consider a staged upgrade through intermediate versions to catch breaking changes incrementally rather than all at once. Review the release notes for each intervening major version to identify API changes, deprecated features, and removed functionality that may affect your codebase.

Official Release Notes Check for vulnerabilities Check your full stack for EOL

Lifecycle Progress

Released: Dec 2013 EOL: Mar 2017

This version reached end of life March 31, 2017.

Previous Version

Ruby 2.0.0

End of Life Next Version

Ruby 2.2

End of Life

All Ruby Versions

Version Released EOL Latest Status
4.0 December 25, 2025 March 31, 2029 4.0.1 Active
3.4 December 24, 2024 March 31, 2028 3.4.8 Active
3.3 December 25, 2023 March 31, 2027 3.3.10 Active
3.2 December 25, 2022 March 31, 2026 3.2.10 Active
3.1 December 25, 2021 March 31, 2025 3.1.7 End of Life
3.0 December 25, 2020 April 23, 2024 3.0.7 End of Life
2.7 December 25, 2019 March 31, 2023 2.7.8 End of Life
2.6 December 25, 2018 March 31, 2022 2.6.10 End of Life
2.5 December 25, 2017 March 31, 2021 2.5.9 End of Life
2.4 December 23, 2016 March 31, 2020 2.4.10 End of Life
2.3 December 24, 2015 March 31, 2019 2.3.8 End of Life
2.2 December 25, 2014 March 31, 2018 2.2.10 End of Life
2.1 (current page) December 25, 2013 March 31, 2017 2.1.10 End of Life
2.0.0 February 24, 2013 February 24, 2016 2.0.0p648 End of Life
1.9.3 October 30, 2011 February 23, 2015 1.9.3p551 End of Life

Frequently Asked Questions

When was Ruby 2.1 released?
Ruby 2.1 was released on December 25, 2013.
When does Ruby 2.1 reach end of life?
Ruby 2.1 reached end of life on March 31, 2017. It no longer receives security patches or bug fixes. You should upgrade to a supported version.
What is the latest patch version of Ruby 2.1?
The latest patch release is 2.1.10, released on March 31, 2016.
Should I still use Ruby 2.1?
No. Ruby 2.1 has reached end of life and no longer receives security updates. Running EOL software exposes your applications to unpatched vulnerabilities. You should plan an upgrade to a currently supported version.

Related Resources

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