Kotlin End of Life (EOL) Dates and End of Support (EOS) Dates

Latest Release: 2.4.20
Official Release Policy

11 Kotlin versions have reached End of Life (EOL) and End of Support (EOS), including Kotlin 2.3 (EOL date: Jun 03, 2026) — no longer receiving security updates or patches. Kotlin 2.4.20 is the current supported release. Also see Azul Zulu lifecycle dates for related end-of-life information.

Kotlin end of life dates timeline — release schedule chart of the 8 most recent Kotlin versions, mapping security support windows against their EOL dates
Kotlin end of life dates and end of support (EOS) dates shown as a release schedule — support windows for the 8 most recent Kotlin releases of 12 total. Each bar runs from the release date to the end of security support, with the dashed line marking today. Exact Kotlin EOL, EOS and EOSL dates for every version are listed in the tables below.

Currently Supported Kotlin Releases - Active EOS/EOSL Support (1)

Release Released Security Support Latest
2.4 (3 months ago) Active 2.4.20 (2 weeks ago)

Kotlin End of Life (EOL) Releases - No Longer Supported (11)

Release Released Security Support Latest
2.3 (9 months ago) (3 months ago) 2.3.21 (4 months ago)
2.2 (1 year and 2 months ago) (9 months ago) 2.2.21 (10 months ago)
2.1 (1 year and 9 months ago) (1 year and 2 months ago) 2.1.21 (1 year and 4 months ago)
2.0 (2 years and 4 months ago) (1 year and 9 months ago) 2.0.21 (1 year and 11 months ago)
1.9 (3 years and 2 months ago) (2 years and 4 months ago) 1.9.25 (2 years and 2 months ago)
1.8 (3 years and 8 months ago) (3 years and 2 months ago) 1.8.22 (3 years and 3 months ago)
1.7 (4 years and 3 months ago) (3 years and 8 months ago) 1.7.22 (3 years and 9 months ago)
1.6 (4 years and 10 months ago) (4 years and 3 months ago) 1.6.21 (4 years and 5 months ago)
1.5 (5 years and 4 months ago) (4 years and 9 months ago) 1.5.32 (4 years and 9 months ago)
1.4 (6 years and 1 month ago) (5 years and 4 months ago) 1.4.32 (5 years and 5 months ago)
1.3 (7 years and 10 months ago) (6 years and 1 month ago) 1.3.72 (6 years and 5 months ago)

Kotlin End of Life & Support Summary

Which Kotlin Versions Are Currently Supported?

Kotlin currently has 1 supported release. Kotlin 2.4.20 is the latest. Also see Python end of support for related end-of-life information.

Kotlin End of Life (EOL) Version History

11 Kotlin releases have reached End of Life (EOL) and End of Support (EOS) — no longer receiving updates or patches. Kotlin 2.3 reached EOL on Jun 03, 2026. Kotlin 2.4.20 is the recommended upgrade for users still on End of Life versions.