marimo 0.15.4

on Python PyPI

This is a quick follow-up to 0.15.3 with important bug fixes for how messaging works inside marimo.

Preview features

• WIP Agent sidebar (Claude Code and Gemini CLI) (#6331)
• Add marimo._ipc for multi-environment kernels (#6303)

Enhancements

• Add progress_bar type hints (#6304)

Bug fixes

• Remove dual JSON encoding in pyodide message callback (#6350)
• Apply styles manually for actions menu (#6346)
• Json encode handle more human types, and more human readable for tables (#6334)
• Checks if sql variable data exists before accessing it (#6327)
• Fallback to __dict__/__slots___ in enc_hook for unknown objects (#6332)

Documentation

• Debugging notebooks (#6305)

Other changes

• Update react-aria dependencies (#6344)
• Introduce ToolBase and centralize tool implementations (#6309)

Contributors

Thanks to all our community and contributors who made this release possible: @Antyos, @bjoaquinc, @dmadisetti, @Light2Dark, @manzt, @mscolnick.

And especially to our new contributors:

• @Antyos made their first contribution in #6304

Full Changelog: 0.15.3...0.15.4