# Kotlin 2.3 is now available

**URL:** <https://forum.codecrafters.io/t/kotlin-2-3-is-now-available/16047>\
**Category:** Announcements\
**Created:** [April 13, 2026, 12:29am UTC](https://forum.codecrafters.io/t/kotlin-2-3-is-now-available/16047 "2026-04-13T00:29:23Z")\
**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 13, 2026, 12:29am UTC](https://forum.codecrafters.io/t/kotlin-2-3-is-now-available/16047/1 "2026-04-13T00:29:23Z")

</div>

Hey everyone!

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

Previously running on v2.2, we’ve now upgraded to **v2.3**.

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.