marimo Files

This release focuses on stability improvements and bug fixes across the runtime, with enhancements to error messaging, UI refinements, and better support for third-party integrations like Ibis and DuckDB.

Enhancements

• More defensive can_narwhalify (#7160)
• Don't set empty cells as stale (#7165)
• Add !pip metadata from ipynb convert and handle ! commands (#7141)
• Add refresh to file browser, add warning when user is editing the notebook file (#7150)
• Error message for missing 'mo' name (#7169)
• Show spinner in mo.ui.file_browser when listing is slow (#7155)
• show warning with button for chart builder if >50k rows or >50 cols (#7164)
• Support superscript in markdown (#7113)
• Inline local images (virutal files) in the HTML export (#7087)
• Impove default DPI on matplotlib images (#7093)
• Render table values according to locale, also use locale in TSV (#7092)
• Add underscore example to multiple-defs error (#7084)
• Don't show uv metadata error for new scripts (#7082)
• Do not trigger UI element warnings for state updates (#7102)

Bug Fixes

• Revert "don't override auto-save by when in --watch mode" (#7071)
• The default rendering of ibis tables when interactive should still be lazy (#7163)
• Default runtime configuration for dotenv (#7168)
• Sidebar size on refresh (#7159)
• Change input type to password for ApiKey and WriteSecretModal components (#7157)
• Raise an error for invalid batch usage (#7140)
• Dispatch hashChange event manually (#7129)
• State resolution (#7110)
• Resolve decorators on parse correctly (preventing dropped decorators) (#7119)
• Login route trailing slash (#7116)
• Handle closed DuckDB connections gracefully (#7111) (#7114) (d500207)
• Cleanup mcp warnings (#7101)
• Sandbox requirements from 'marimo edit <url>' (#7104)
• Track contents to avoid reloading on our own writes (#7099)
• Better virtual file matching (#7094)
• Ensure "async" only appears once in async function signatures (#7091)

Documentation

• Add YouTube links to docs (#7156)
• Fix typo in readme, missing quotes in recommended (#7121)

Other changes

• Update tests and typings to support altair v6 (#7162)
• Uvx hatch (#7148)
• Update dependency ai to v5.0.52 [security] (#7117)
• Update codemirror dependencies (#7108)
• Clean up AppFileManager to be more testable (#7100)
• Lint commented console statements (#7086)
• Better lsp logging (#7085)

Contributors

Thanks to all our community and contributors who made this release possible: @akshayka, @chendaniely, @dmadisetti, @enosh, @koaning, @Light2Dark, @mscolnick, @peterbygrave, @SamarJyoti496

And especially to our new contributors:

• @peterbygrave made their first contribution in https://github.com/marimo-team/marimo/pull/7091
• @chendaniely made their first contribution in https://github.com/marimo-team/marimo/pull/7121
• @enosh made their first contribution in https://github.com/marimo-team/marimo/pull/7155

Full Changelog: https://github.com/marimo-team/marimo/compare/0.17.7...0.17.8