Marimo

What's Changed

This change includes improved error messages, explaining why marimo places constraints on variables and "star" imports.

* improve: error messages for import *, multiple definition by akshayka in https://github.com/marimo-team/marimo/pull/3937


**Full Changelog**: https://github.com/marimo-team/marimo/compare/0.11.11...0.11.12

What's Changed

🧠 This release makes it possible to use thinking models (e.g., o3-mini) in the AI chat sidebar and elsewhere, and includes a couple other fixes and improvements.

* improvement: allow --no-sandbox by mscolnick in https://github.com/marimo-team/marimo/pull/3924
* fix: cell staleness when autorun on startup is off by akshayka in https://github.com/marimo-team/marimo/pull/3926
* chore(deps): update all storybook dependencies to ^8.5.8 by renovate in https://github.com/marimo-team/marimo/pull/3927
* improvement: add helpful resources to the home page and dropdown by mscolnick in https://github.com/marimo-team/marimo/pull/3929
* fix: remove tmp for thinking models by mscolnick in https://github.com/marimo-team/marimo/pull/3932


**Full Changelog**: https://github.com/marimo-team/marimo/compare/0.11.10...0.11.11

⭐ Highlights

**🤖 Chat sidebar** is now GA.


**📈 mo.ui.altair_chart** now used Arrow instead of CSV for its over-the-wire format. This has tradeoffs: memory consumption is lower, parsing times are faster, but download time could be longer for remote servers. This also improves the type correctness by avoiding guessing the CSV types. Please reach out if you experience any regressions.

What's Changed
* fix: vim switching perf by mscolnick in https://github.com/marimo-team/marimo/pull/3906
* improvement: use Arrow IPC for mo.ui.altair_chart to preserve field types by mscolnick in https://github.com/marimo-team/marimo/pull/3902
* fix: anywidget emit on any change (without a key) by mscolnick in https://github.com/marimo-team/marimo/pull/3905
* fix(deps): update all radix dependencies by renovate in https://github.com/marimo-team/marimo/pull/3907
* improvement: Support Format for more `Bokeh` objects by way-zer in https://github.com/marimo-team/marimo/pull/3910
* chore: ruff UP rules by mscolnick in https://github.com/marimo-team/marimo/pull/3911
* tests: flakey tests by mscolnick in https://github.com/marimo-team/marimo/pull/3914
* tests: more tests for dataflow by mscolnick in https://github.com/marimo-team/marimo/pull/3913
* fix: don't compile code with annotations future flag by akshayka in https://github.com/marimo-team/marimo/pull/3918
* feat: GA chat sidebar by mscolnick in https://github.com/marimo-team/marimo/pull/3919
* perf: better memoization for multi-column and id-tree by mscolnick in https://github.com/marimo-team/marimo/pull/3917
* improvement: use anywidget types and widget.get_state() by mscolnick in https://github.com/marimo-team/marimo/pull/3921
* improvement: pyodide 0.27.3 by mscolnick in https://github.com/marimo-team/marimo/pull/3922
* fix: force uv as the set package manager when running --sandbox by mscolnick in https://github.com/marimo-team/marimo/pull/3925
* fix: marimo config describe format by mscolnick in https://github.com/marimo-team/marimo/pull/3923

New Contributors
* way-zer made their first contribution in https://github.com/marimo-team/marimo/pull/3910

**Full Changelog**: https://github.com/marimo-team/marimo/compare/0.11.9...0.11.10

What's Changed
* chore: small test fixes by Light2Dark in https://github.com/marimo-team/marimo/pull/3880
* fix: persist chat messages by Light2Dark in https://github.com/marimo-team/marimo/pull/3878
* Fix: Prevent text duplication in RTC during quick reconnection by devin-ai-integration in https://github.com/marimo-team/marimo/pull/3883
* chore: warn users about RTC code duplication by akshayka in https://github.com/marimo-team/marimo/pull/3877
* fix: sync language in RTC by mscolnick in https://github.com/marimo-team/marimo/pull/3885
* join newlines with spaces in Html.__format__ by enricozb in https://github.com/marimo-team/marimo/pull/3882
* chore(deps): update build tools by renovate in https://github.com/marimo-team/marimo/pull/3886
* fix: only apply css when selected & expanded for db & schema by Light2Dark in https://github.com/marimo-team/marimo/pull/3891
* fix: don't show data-types for dict/list tables (again) by mscolnick in https://github.com/marimo-team/marimo/pull/3896
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/marimo-team/marimo/pull/3899
* improvement: bring back SQL schema completion and AI '' reference for datasources by mscolnick in https://github.com/marimo-team/marimo/pull/3898
* feat: koaning/motest parity (pytest in blocks) by dmadisetti in https://github.com/marimo-team/marimo/pull/3892
* docs: sql docs on db GUI and datasource panel by mscolnick in https://github.com/marimo-team/marimo/pull/3897
* improvement: auto-install sqlglot when using mo.sql in wasm by mscolnick in https://github.com/marimo-team/marimo/pull/3900
* docs: custom snippets by mscolnick in https://github.com/marimo-team/marimo/pull/3903

New Contributors
* enricozb made their first contribution in https://github.com/marimo-team/marimo/pull/3882

**Full Changelog**: https://github.com/marimo-team/marimo/compare/0.11.8...0.11.9

What's Changed
* fix: mo.ui.date popover by mscolnick in https://github.com/marimo-team/marimo/pull/3855
* improve: configure output max bytes with pyproject.toml by akshayka in https://github.com/marimo-team/marimo/pull/3858
* improve: minor ui updates, fixes for datasources by Light2Dark in https://github.com/marimo-team/marimo/pull/3861
* improvement: Add show-chrome=false by mscolnick in https://github.com/marimo-team/marimo/pull/3862
* chore: sql engine remove defaults in favor of explicit by mscolnick in https://github.com/marimo-team/marimo/pull/3863
* compat: Register webbrowser.open hook for pyodide by dmadisetti in https://github.com/marimo-team/marimo/pull/3864
* docs: hiding chrome for editable playground links by akshayka in https://github.com/marimo-team/marimo/pull/3866
* Specify the encoding for reading files to keep from encoding error for some Asian Windows platform. by codemee in https://github.com/marimo-team/marimo/pull/3868
* docs: fix MDX snippet by akshayka in https://github.com/marimo-team/marimo/pull/3872
* feat: support unix-style piping for marimo edit by akshayka in https://github.com/marimo-team/marimo/pull/3867
* fix: non-deterministic random object-ids for session caching by mscolnick in https://github.com/marimo-team/marimo/pull/3874
* fix: stable row id by mscolnick in https://github.com/marimo-team/marimo/pull/3875

New Contributors
* codemee made their first contribution in https://github.com/marimo-team/marimo/pull/3868

**Full Changelog**: https://github.com/marimo-team/marimo/compare/0.11.7...0.11.8

⭐ Highlights

**🔄 Serialized outputs** - when auto-instantiate is off, outputs are stored in `__marimo__/session`. When you restart you notebook, your outputs will be brought back without running any cells. Every cell is still considered stale, so whenever a cell is run, we run it's ancestors to bring them up-to-date.

**💽 Refreshed data-sources panel** - The datasources panel now includes an improved hierarchy (Engine > Database > Schema > Table > Columns), more performant loading, lazy-loading, and column metadata like types and primary keys. h/t Light2Dark

<img width="627" alt="image" src="https://github.com/user-attachments/assets/21fb489b-f14c-4480-8962-a1d3ae725445" />


What's Changed
* fix: app title in wasm export by mscolnick in https://github.com/marimo-team/marimo/pull/3821
* improvement: support uv index-url and extra-index-url by mscolnick in https://github.com/marimo-team/marimo/pull/3827
* chore: test coverage in frontend/utils by mscolnick in https://github.com/marimo-team/marimo/pull/3826
* feat: Session Schema and Serialize outputs by mscolnick in https://github.com/marimo-team/marimo/pull/3807
* chore: cleanup utils folder for less dependencies by mscolnick in https://github.com/marimo-team/marimo/pull/3832
* Remove inspect call from top level by dmadisetti in https://github.com/marimo-team/marimo/pull/3833
* fix: semicolon supression by dmadisetti in https://github.com/marimo-team/marimo/pull/3830
* feat: top level imports by dmadisetti in https://github.com/marimo-team/marimo/pull/3779
* tests: always shutdown server, even in failures by mscolnick in https://github.com/marimo-team/marimo/pull/3837
* chore: fix exports, snapshot public api by mscolnick in https://github.com/marimo-team/marimo/pull/3836
* fix: safer check before removing session by mscolnick in https://github.com/marimo-team/marimo/pull/3838
* chore: move ids to central file by mscolnick in https://github.com/marimo-team/marimo/pull/3839
* refactor: migrate VariableName to use NewType by devin-ai-integration in https://github.com/marimo-team/marimo/pull/3840
* fix: chrome env check by mscolnick in https://github.com/marimo-team/marimo/pull/3841
* refactor: migrate SessionId to use NewType by devin-ai-integration in https://github.com/marimo-team/marimo/pull/3842
* refactor: migrate UIElementId to use NewType by devin-ai-integration in https://github.com/marimo-team/marimo/pull/3843
* chore: typesafe CellId by mscolnick in https://github.com/marimo-team/marimo/pull/3844
* snippets: for cloud buckets by mscolnick in https://github.com/marimo-team/marimo/pull/3845
* chore: upgrade vite to v6 by devin-ai-integration in https://github.com/marimo-team/marimo/pull/3847
* fix: <CR> in vim by mscolnick in https://github.com/marimo-team/marimo/pull/3849
* feat: add databases in datasource by Light2Dark in https://github.com/marimo-team/marimo/pull/3735
* improvement: auto iframe html output with <script/> tags by mscolnick in https://github.com/marimo-team/marimo/pull/3850
* fix: add back bigquery logo, move help into select dropdown by mscolnick in https://github.com/marimo-team/marimo/pull/3852
* fix: mo.ui.dataframe filtering by mscolnick in https://github.com/marimo-team/marimo/pull/3853


**Full Changelog**: https://github.com/marimo-team/marimo/compare/0.11.6...0.11.7