Kotlin 1.5
This version has reached end of life and no longer receives updates.
April 26, 2021
Ongoing
November 29, 2021
1.5.32 (November 29, 2021)
About Kotlin 1.5
Kotlin 1.5 reached end of life over 4 years ago on November 29, 2021. 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.
Upgrade to Kotlin 2.3 for continued security coverage and access to the latest features. The upgrade from 1.5 to 2.3 is typically straightforward, but review the release notes for any deprecations or API changes.
Lifecycle Progress
This version reached end of life November 29, 2021.
All Kotlin Versions
| Version | Released | EOL | Latest | Status |
|---|---|---|---|---|
| 2.3 | December 16, 2025 | TBD | 2.3.10 | Active |
| 2.2 | June 23, 2025 | December 16, 2025 | 2.2.21 | End of Life |
| 2.1 | November 27, 2024 | June 23, 2025 | 2.1.21 | End of Life |
| 2.0 | May 21, 2024 | November 27, 2024 | 2.0.21 | End of Life |
| 1.9 | July 6, 2023 | May 21, 2024 | 1.9.25 | End of Life |
| 1.8 | December 28, 2022 | July 6, 2023 | 1.8.22 | End of Life |
| 1.7 | June 9, 2022 | December 28, 2022 | 1.7.22 | End of Life |
| 1.6 | November 15, 2021 | June 9, 2022 | 1.6.21 | End of Life |
| 1.5 (current page) | April 26, 2021 | November 29, 2021 | 1.5.32 | End of Life |
| 1.4 | August 14, 2020 | April 26, 2021 | 1.4.32 | End of Life |
| 1.3 | October 29, 2018 | August 14, 2020 | 1.3.72 | End of Life |
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