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The New Stack·Jun 29·5 min read
JetBrains kills Kotlin Notebook months after Microsoft’s Polyglot exit. But Jupyter is doing just fine.
TL;DR
JetBrains identified a gap in interactive coding tools for Kotlin, leading to the development of Kotlin Notebook. However, the company has decided to sunset this plugin, transferring it to the open-source community under the Apache 2.0 license.
✦ Why It Matters
Engineers should consider the implications of tool discontinuation and explore open-source alternatives for interactive coding.
Key Takeaways
- Explore Jupyter Notebooks for AI and data science projects.
- Stay updated on JetBrains' open-source initiatives.
- Consider the impact of AI tools on your development workflows.
- Evaluate the adoption of notebook-style coding in your team.
Full Summary
JetBrains announced the sunset of Kotlin Notebook, an interactive coding plugin, after it failed to gain expected traction since its launch. Starting with IntelliJ IDEA 2026.2, the plugin will be open-sourced under the Apache 2.0 license, marking the first time its source code is publicly available.
This decision mirrors Microsoft's earlier discontinuation of Polyglot Notebooks, which also struggled to find an audience outside of Python developers. The Jupyter format, which originated in the Python data science community, remains popular, with a 75% increase in repositories containing Jupyter Notebooks.
Jupyter's continued success, particularly in AI projects, contrasts with the struggles of Kotlin and C# communities to adopt notebook-style workflows. JetBrains is pivoting towards AI-native coding tools, as evidenced by their recent open-sourcing of the Mellum2 coding model.