Issues

• Public API for a widget owned by the session rather than a cell

  enhancementneeds discussion
  Feature

  marimo-team/marimo#11496 · Filter by author user27182 opened on Oct 27, 2026
  2

• mo.ui.table: make the cell click-to-expand popover configurable

  enhancementneeds discussion
  Feature

  marimo-team/marimo#11492 · Filter by author ali-zaeim opened on Oct 27, 2026
  2

  

• Saving layouts for distinct notebook names can overwrite another notebook layout

  marimo-team/marimo#11475 · Filter by author j341nono opened on Oct 26, 2026
  

• marimo check glob patterns skip root-level files and cross directory boundaries

  marimo-team/marimo#11474 · Filter by author j341nono opened on Oct 26, 2026
  

• File browser fails to list directories containing Unicode digit filenames

  marimo-team/marimo#11472 · Filter by author j341nono opened on Oct 26, 2026
  1

  

• Single-line cell bodies lose the start of their first token

  marimo-team/marimo#11465 · Filter by author umtong opened on Oct 25, 2026
  

• DuckDB 2.0: get_default_database() and get_default_schema() return None, because relations no longer have fetchone()

  bug
  Bug

  marimo-team/marimo#11456 · Filter by author CyberNativeAI opened on Oct 25, 2026
  2

  

• html-wasm --offline fails on Windows because Playwright cannot spawn its driver

  bug
  Bug

  marimo-team/marimo#11454 · Filter by author Ryanphoenix opened on Oct 24, 2026
  1

  

• [molab] [gpu] [driver] RTX PRO 6000 (SM120) sessions on NVIDIA driver 595.71.05 have ~33% lower L2 bandwidth than on 580.178.04

  bug
  Bug

  marimo-team/marimo#11453 · Filter by author imezx opened on Oct 24, 2026

• Global (account-level) secrets that survive notebook deletion, for molab and local

  marimo-team/marimo#11452 · Filter by author erinoooo opened on Oct 24, 2026

• Support DuckDB 2.0 CONNECT sessions in mo.sql

  bugupstream
  Bug

  marimo-team/marimo#11443 · Filter by author yan-hic opened on Oct 23, 2026
  

• Better polars column completion

  enhancementneeds discussion
  Feature

  marimo-team/marimo#11436 · Filter by author joknoll opened on Oct 23, 2026
  1

  

• marimo edit triggers the Windows firewall prompt: CompositeLspServer probes ports on all interfaces

  marimo-team/marimo#11435 · Filter by author stanverwer opened on Oct 23, 2026
  1

  

• Request: cell execution state easier to scan

  enhancementneeds discussion
  Feature

  marimo-team/marimo#11432 · Filter by author ngrayluna opened on Oct 22, 2026
  1

• Molab: POST /api/notebook/launch returns 403 for all notebook

  bug
  Bug

  marimo-team/marimo#11408 · Filter by author korolvadim852-creator opened on Oct 22, 2026

• [CUDA Toolkit] nvidia-cutlass-dsl-libs-core package is missing (not pre-installed)

  molab
  marimo-team/marimo#11383 · Filter by author imezx opened on Oct 21, 2026
  1

  

• [Bug]: from_series raises unhandled exceptions or creates invalid widgets on empty or all-null series

  bug
  Bug

  marimo-team/marimo#11309 · Filter by author rajveer3x opened on Oct 18, 2026
  

• Cell referencing a variable from a "cancelled" cell runs and raises NameError instead of being blocked

  marimo-team/marimo#11307 · Filter by author bolleman opened on Oct 18, 2026
  

• Theme change to dark mode retains light mode header

  molab
  marimo-team/marimo#11298 · Filter by author aichander opened on Oct 17, 2026

• It would be great to be able to take HTML snapshots via the MCP

  enhancementneeds discussion
  Feature

  marimo-team/marimo#11294 · Filter by author LukeWood opened on Oct 17, 2026
  1

  

• There is a strange lag when editing cells.

  bug
  Bug

  marimo-team/marimo#11276 · Filter by author Angelo-max-hub opened on Oct 16, 2026
  2

  

• Merging cells button

  enhancementneeds discussion
  Feature

  marimo-team/marimo#11253 · Filter by author MaKaNu opened on Oct 15, 2026
  1

  

• Unstable Webui

  bugcannot reproducemissing reproduction
  Bug

  marimo-team/marimo#11246 · Filter by author RakeshChowdhury opened on Oct 15, 2026
  2

• Theme change does not affect terminal colors

  needs discussion
  Feature

  marimo-team/marimo#11244 · Filter by author tolgaatam opened on Oct 14, 2026
  3

• Support periodic auto-export during headless notebook execution

  enhancementneeds discussion
  Feature

  marimo-team/marimo#11192 · Filter by author nightly opened on Oct 12, 2026
  2