Mavenorg.
org.jetbrains.kotlinx:kotlinx-serialization-json
Kotlin multiplatform serialization runtime library
cborjsonkotlinprotobufserialization
org.jetbrains.kotlinxgithub.com/Kotlin/kotlinx.serializationApache-2.0JetBrains Team5.9k · 690 forks · 210 contributors
Release cadenceEvery 3 months
Last releaseOct 20, 2026
Open advisories0
Changelog quality100% curated
GitHub Releases
Release history SecurityYou're on
21 older or filtered releases not shown.
VersionChannelDateChangesSecurity
1.12.0 StableOct 20, 2026Breaking1Deprecated2New2Changed11Fixed8Other11.12.0-RC RCSep 4, 2026Breaking1Deprecated2New3Changed8Fixed61.11.0 youStableApr 9, 2026New2Changed1Fixed11.10.0 StableJan 21, 2026Breaking1New2Changed10Fixed3Other11.10.0-RC RCDec 19, 2025Breaking1New1Changed9Fixed2Other11.9.0 StableJun 27, 2025New2Changed1Fixed21.8.1 StableMar 31, 2025No changes listed1.8.0 StableJan 6, 2025No changes listed1.8.0-RC RCDec 12, 2024No changes listed1.7.3 StableSep 19, 2024No changes listed1.7.2 StableAug 28, 2024No changes listed1.7.1 StableJun 25, 2024No changes listed1.7.0 StableJun 6, 2024No changes listed1.7.0-RC RCMay 16, 2024No changes listed1.6.3 StableFeb 16, 2024No changes listed1.6.2 StableNov 30, 2023No changes listed1.6.1 StableNov 15, 2023No changes listed1.6.0 StableAug 22, 2023No changes listed1.6.0-RC RCAug 3, 2023No changes listed1.5.1 StableMay 11, 2023No changes listed