# Ruby 4.0 is now available!

**URL:** <https://forum.codecrafters.io/t/ruby-4-0-is-now-available/16058>\
**Category:** Announcements\
**Created:** [April 20, 2026, 6:32am UTC](https://forum.codecrafters.io/t/ruby-4-0-is-now-available/16058 "2026-04-20T06:32:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![andy1li](https://yyz1.discourse-cdn.com/flex003/user_avatar/forum.codecrafters.io/andy1li/32/10_2.png) [@andy1li](https://forum.codecrafters.io/u/andy1li)\
**Post date:** [April 20, 2026, 6:32am UTC](https://forum.codecrafters.io/t/ruby-4-0-is-now-available/16058/1 "2026-04-20T06:32:02Z")

</div>

Hey everyone!

The default [Ruby](https://app.codecrafters.io/tracks/ruby) version has been updated across all supported challenges.

Previously running on v3.4, we’ve now upgraded to **v4.0**.

To use the latest version, be sure to [update the buildpack version](https://forum.codecrafters.io/t/new-feature-update-language-version/15245) in your repo as well.