What's Changing for Kotlin Notebook
https://i.redd.it/oz4810deiaah1.gif
Kotlin Notebook is moving to a community-driven, open-source model. Starting with v2026.2 it's no longer bundled with IntelliJ IDEA (it stays available on the Marketplace), and the source is being published on GitHub under Apache 2.0 so the community can keep developing it. JetBrains will no longer officially maintain or support it. Engineers may still review and merge community PRs when possible, but day-to-day maintenance moves to the community.
What this means if you use Kotlin for data analysis: Kotlin DataFrame is unaffected and continues independently. Recent releases have made it much easier to bring notebook-style, type-safe data transformations into regular Kotlin projects with the DataFrame compiler plugin, schema-aware APIs and generated column accessors are now available directly in Gradle and Maven projects and work in ordinary .kt files. The latest release is 1.0.0-Beta5.
Setup guides:
- Gradle - https://kotlin.github.io/dataframe/setupgradle.html
- Maven - https://kotlin.github.io/dataframe/setupmaven.html
- Release notes: https://github.com/Kotlin/dataframe/releases/tag/v1.0.0-Beta5
Full announcement: https://jb.gg/0sa5lk. Happy to answer questions in the comments and if you'd like to help maintain or contribute to Kotlin Notebook, jump into the Kotlin Slack #notebooks channel.