JupyterLab Weekly Meeting Minutes

# [Jupyter Contributor Meeting (Frontends/Accessibility/Server/Kernels) Weekly Meeting Minutes](https://hackmd.io/Y7fBMQPSQ1C08SDGI-fwtg) - What: topics related to JupyterLab, Jupyter Notebook, frontends, accessibility, server, kernels. (Note: accessibility topics are welcome in all meetings, but members of the [Jupyter Accessibility](https://github.com/jupyter/accessibility) subproject make an effort to attend the first meeting of each calendar month.) - on every first meeting on calendar month please add "Accessibility" section to agenda and - if there is nothing in "Accessibility" section, let's fall back to triaging/discussing issues with [tag:Accessibility](https://github.com/jupyterlab/jupyterlab/issues?q=is%3Aopen+is%3Aissue+label%3Atag%3AAccessibility) - When: Wednesdays [9AM Pacific Time](https://www.thetimezoneconverter.com/?t=9%3A00%20am&tz=San%20Francisco&) - Where: [Zoom](https://zoom.us/j/95228013874?pwd=Ep7HIk8t9JP6VToxt1Wj4P7K5PshC0.1) - [Guide/Script](https://jupyterlab-team-compass.readthedocs.io/en/latest/host-guide.html) for meeting hosts! **[Archived meeting notes at Frontends Team Compass GitHub repo](https://github.com/jupyterlab/frontends-team-compass/issues/279)** - Tip of the JupyterLab `main` branch: https://mybinder.org/v2/gh/jupyterlab/jupyterlab/main - [Frontends PR Triage Board](https://github.com/orgs/jupyterlab/projects/11), [JLab Issue AI Triage Board](https://github.com/orgs/jupyterlab/projects/13) - Issues: [JLab Needs Design](https://github.com/jupyterlab/jupyterlab/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3ANeeds+Design%22) and [JLab Needs Discussion](https://github.com/jupyterlab/jupyterlab/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3ANeeds+Discussion%22) ## Wednesday, December 17 | Name | Affiliation | GitHub | | -----|-------------|--------| | Mike Krassowski | OpenTeams | @krassowski | | Afshin T. Darian | QuantStack | @afshin | | Jason Grout | Independent | @jasongrout | | Nicolas Brichet | QuantStack | @brichet | | Vidar T Fauske | JP Morgan Chase | @vidartf | | Dan Yeaw | Anaconda | @danyeaw | | Jeremy Tuloup | QuantStack | @jtpio | |||| - Mike - 4.6.0 release plan https://github.com/jupyterlab/jupyterlab/issues/18196 - upgrade to vega 6 in JupyterLab 4.6.0? - https://github.com/jupyterlab/jupyterlab/issues/18113 - https://github.com/vega/vega/releases/tag/v6.0.0 - upgrade to MathJax 4.1 - https://github.com/mathjax/MathJax/releases/tag/4.1.0 - https://github.com/mathjax/MathJax-src/releases/tag/4.1.0 - alert extension for marked? https://github.com/jupyterlab/jupyterlab/issues/18096 The alert syntax works on hackmd and github. However, it introduces an english word into markdown syntax, which would be a first :(. > [!NOTE] > Useful information that users should know, even when skimming content. related to JEP https://github.com/jupyter/enhancement-proposals/pull/99 - Jeremy - Releases: - https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.1 - https://github.com/jupyter/notebook/releases/tag/v7.5.1 - https://github.com/jupyterlite/jupyterlite/releases/tag/v0.7.1 - Alpha releases - https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.0a0 - https://github.com/jupyter/notebook/releases/tag/v7.6.0a0 - Rspack issue for prod builds, tracked in https://github.com/jupyterlab/jupyterlab/issues/18227 - Darian - https://github.com/jupyter-ai-contrib/jupyterlab-cell-input-footer/issues/16 Upstreaming a version of this functionality into JupyterLab core - @jasongrout - Doing some pull request reviews after this meeting on the zoom channel. Anyone is welcome to join. - Testing updates: https://github.com/jupyterlab/jupyterlab/pull/18216 - `jlpm run build:test` and `jlpm run test` didn't work? What local tests have people been running? - Perhaps some integrity tests that verify that the packages with tests are listed in the ci workflow - Snapshot failures - https://github.com/jupyterlab/jupyterlab/pull/18216#issuecomment-3665373555 indicates updated snapshot in #18151 in caused the mermaid failures? - Figure out how to get the screenshots to a stable place in the ui, like opening in new tab - Nicolas - Allow adding shortcuts on any command https://github.com/jupyterlab/jupyterlab/issues/13705 - Styling of settings panel https://github.com/jupyterlab/jupyterlab/issues/14006 - Mike again - `jupyterlab-favorites` 3.3.1 fixing conflict with `jupyterlab-myst` https://github.com/jupyterlab-contrib/jupyterlab-favorites/pull/37 due to Notebook Factory lack of granularity - `jupyter_ydoc` 3.3.3 https://github.com/jupyter-server/jupyter_ydoc/releases/tag/v3.3.3 - Unicode is hard; harder when Python and Rust fighting each other https://github.com/jupyter-server/jupyter_ydoc/pull/370 - `jupyter-collaboration` 4.2.0 incl file watcher stopping after 24h if it errors out; fix a bug with DOS caret returns https://github.com/jupyterlab/jupyter-collaboration/releases/tag/v4.2.0 ## Wednesday, December 10 | Name | Affiliation | GitHub | | -----|-------------|--------| | Mike Krassowski | OpenTeams | @krassowski | | Jason Grout | Independent | @jasongrout | | William Stein | SageMath, Inc. | @williamstein | | Andrii Ieroshenko | AWS | @andrii-i | | Rosio Reyes | Anaconda | @RRosio | | Jeremy Tuloup | QuantStack | @jtpio | | A. T. Darian | QuantStack | @afshin | | Ian Thomas | QuantStack | @ianthomas23 | | R Ely | Bloomberg | @ohrely | - Zach - Advocating for us moving to server-side document state eventually. - From William Stein in chat: I’ve implemented exactly what [Darian was] worried about many times in multiple ways. The right solution IMHO is a hybrid approach: - do exactly what you do now for minimal latency for the initiator - but if the initiator vanishes, switch to having the backend put the results in the doc via rtc - From Mike: I don't know of data loss issues. I know of two issues: - data duplication due to pycrdt-store sync issue - Unicode issues because pycrdt uses rust Unicode encoding vs Python encoding - Zach also has a [PR](https://github.com/jupyter-server/jupyter_server/pull/1570) in draft to rearchitect the websocket handling - Mike: - Add 'Open in Terminal' to context menu review - link to PR https://github.com/jupyterlab/jupyterlab/pull/18152 - do we want to show it for both files and directories by default or only for directories - is position in context menu as fourth entry optimal - what is the expected action if multiple folders/files are selected (I think for most other commands we repeat the action) - should the plugin implementing it live in `@jupyterlab/filebrowser-extension` or `@jupyterlab/terminal-extension` (one could make an argument both ways) - Google Summer of Code 2026 - please check if you would be able to dedicate some time to mentor a student - last year we decided not to apply given transition from NumFOCUS to Linux Foundation - we will need to have a final decision by end of January, but probably need to start bugging EC/LF support team now to see if there is anyone who will be able to help with the paper work - https://developers.google.com/open-source/gsoc/timeline - Jeremy - Vote: Incorporate JupyterLite into Jupyter Frontends: https://github.com/jupyterlab/frontends-team-compass/issues/290 - npm trusted publishers: https://github.com/jupyterlab/jupyterlab/issues/17993 - Rspack PR: ready to merge? https://github.com/jupyterlab/jupyterlab/pull/16005 - +1 from Jason, then do a 4.6 alpha release - Mike again - the copy-paste story - https://github.com/jupyterlab/jupyterlab/issues/18150 - https://github.com/jupyterlab/jupyterlab/issues/18136 - Several people said +1 to reverting the things that are breaking existing workflows - Jason: Jlab PR Triage and Review party? - Jason: Cancel Dec 24 and 31 meetings? ## Wednesday, December 3 | Name | Affiliation | GitHub | | -----|-------------|--------| | Mike Krassowski | OpenTeams | @krassowski | | Jake Diamond-Reivich|Mito || | Jason Grout | Independent | @jasongrout | | Thomas Dutkiewicz | Space Telescope Science Institute | @ttdu | | Jenn Kotler | Space Telescope Science Institute | @jenneh | Ian Thomas | QuantStack | @ianthomas23 | | Jeremy Tuloup | QuantStack | @jtpio | | JooYoung Seo | University of Illinois Urbana-Champaign | @jooyoungseo | | Rosio Reyes | Anaconda | @RRosio | | Andrii Ieroshenko | AWS | @andrii-i | - (1) Any accessibility topics? These take a priority this week :) - Thomas/Jenn/JooYoung Talk about Maidr for accessibility in Jupyter plotting - https://github.com/xability/maidr/ - Demo at https://py.maidr.ai/examples.html#demo-video - https://py.maidr.ai/ - MAIDR talk at posit::conf(2025): https://www.youtube.com/watch?v=QR7mdgM8Hf0 - Accessible maidr dashboard: https://xabilitylab.shinyapps.io/a11y_dashboard - Demo from Thomas of a sonification of an [existing astronomy tutorial notebook](https://spacetelescope.github.io/mast_notebooks/notebooks/IUE/exploring_UV_extinction_curves/exploring_UV_extinction_curves.html) - Matthias Mention that our [accessibility Community Funding proposal](https://github.com/jupyter-governance/funding-proposals/issues/16) was accepted. Please don't hesitate reaching out. Flagging priorities to us. - Nick offered to get maidr up on conda-forge - Pain points: - [Keyboard shortcuts](https://py.maidr.ai/#keyboard-shortcuts-and-controls) conflict with JupyterLab keyboard shortcuts. Currently using an iframe to work around the problem, but having iframes brings its own issues. - >Mike: could `data-lm-suppress-shortcuts="true"` help to avoid iframe? [Keyboard interaction model docs](https://jupyterlab.readthedocs.io/en/stable/extension/notebook.html#keyboard-interaction-model) - matplotlib integration to make it easier to render matplotlib with maidr data - Mike: - Looking for reviews on jupyter-server repo :eyes: - {%preview https://github.com/jupyter-server/jupyter_server/pull/1579 %} - {%preview https://github.com/jupyter-server/jupyter_server/pull/1577 %} - {%preview https://github.com/jupyter-server/jupyter_server/pull/1576 %} - {%preview https://github.com/jupyter-server/jupyter_server/pull/1574 %} - `jupyter-collaboration` is much more reliable and feature full now (`v4.1.2`) and `jupyter-ydoc` (`v3.3.2`) - @jasongrout * Reminder - Executive Council election in progress this week. If you are on a Jupyter council or working group, you should have received a ballot from opavote. If you didn't please contact a member of the EC. - Jeremy: - Proposal: Incorporate JupyterLite into Jupyter Frontends - https://github.com/jupyterlab/frontends-team-compass/issues/289 - Rosio: - Reminder: Jupyter Community Call is tomorrow December 4th at 8am PST, sign up to present by adding your name in the [HackMD agenda](https://hackmd.io/@LO9atHZCQnWJhKUnBv2UWQ/HkM0gOukbx) - Matthias: - latest state of [Triaging agent](https://github.com/orgs/jupyterlab/projects/13). - Board demo - repo for prompts? - server with agent output/rationale ### Off the Record * Mike - will be OOO for 2 weeks in December, Darshan from OpenTeams is stepping up to help with reviews/maintenance on frontends side too * FYI, you can set your status in github if you'd like to broadcast that you are OOO on github ## Wednesday, November 26 | Name | Affiliation | GitHub | | -----|-------------|--------| | Andrii Ieroshenko | AWS | @andrii-i | | Jeremy Tuloup | QuantStack | @jtpio | | Vidar Fauske | JP Morgan Chase | @vidartf | | William Stein | SageMath, Inc. | @williamstein | | Jason Grout | Independent | @jasongrout | | Jake Diamond-Reivich| Mito | | | Ian Thomas | QuantStack | @ianthomas23 | | Konstantin Taletskiy | Anaconda | @ktaletsk | | Drake Aiman | Google | @wh1ter4bb1t-js | * Mike (will not be able to attend): * any interest in having Zulip notification on releases as IPython does? * https://github.com/ipython/ipython/blob/cd483f2f927c09be71dd5885618d7b2443a81b7a/.github/workflows/publish.yml#L67-L79 * Would be nice to have for added visibility and therefore for more people potentially trying pre-release versions * the PR queue in JupyterLab has grown >120; do we need more people with permissions to merge? Code owners? * happy to schedule a dedicated call for PR reviews to help mentor contributors to take more lead in reviews * [PR triage board](https://github.com/orgs/jupyterlab/projects/11) * 2-3 people said they would like to attend a call like this. This sounds like it would be valuable. * Jeremy * JupyterLab 4.5 / Notebook 7.5 blog post: https://blog.jupyter.org/jupyterlab-4-5-and-notebook-7-5-are-available-1bcd1fa19a47 * JupyterLite 0.7.0 is released * The Try Jupyter deployment has been updated: https://jupyter.org/try-jupyter * npm 11 support in Jupyter Releaser: * https://github.com/jupyter-server/jupyter_releaser/pull/618 * This will hopefully help unblock the move to npm trusted publishers * @jasongrout - Rspack migration effort: https://github.com/jupyterlab/jupyterlab/pull/16005 * Rosio * Community call happening on Thursday December 4th at 8am PST ([blog post](https://blog.jupyter.org/jupyter-community-call-december-2025-f0cf14e857ed)) * Add your name to [agenda](https://hackmd.io/@LO9atHZCQnWJhKUnBv2UWQ/HkM0gOukbx) * @jasongrout: EC election going on right now ### Off the Record * Any thoughts/follow-up from JupyterCon? * Coordinate with organizers to gather information about the number of tutorial attendees. * Contact Jupyter Media Strategy (jupyter-media-strategy@googlegroups.com) about any blog posts, images, etc about JupyterCon, to be amplified. ## Wednesday, November 19 | Name | Affiliation | GitHub | | -----|-------------|--------| | Matt Fisher | UC Berkeley | `@mfisher87` | | Andrii Ieroshenko | AWS | @andrii-i | | Jason Grout | Independent | @jasongrout | | Vidar T Fauske | JP Morgan Chase | @vidartf | | William Stein | SageMath, Inc. | @williamstein | | Ian Thomas | QuantStack | @ianthomas23 | | Jeremy Tuloup | QuantStack | @jtpio | | Konstantin Taletskiy | Anaconda | @ktaletsk | * Matt Fisher * Documentation organization & philosophy proposal * Apply [diataxis](https://diataxis.fr/) philosophy (broadly adopted, including [official python docs](https://discuss.python.org/t/adopting-the-diataxis-framework-for-python-documentation/15072/35)); more, shorter pages carefully aimed at specific audiences * Start small, with specific extractions from [user extensions](https://jupyterlab.readthedocs.io/en/stable/user/extensions.html) and [developing extensions](https://jupyterlab.readthedocs.io/en/stable/extension/extension_dev.html) pages * Extract two new "explanation" type pages: "Do I need to publish to NPM?" and "Source vs prebuilt extensions". * Cross-reference those pages instead of embedding this explanation many readers won't need * Build towards a Project Jupyter endorsed philosophy of documentation. Documentation is very hard and often underappreciated. Endorsing a philosophy helps documentation authors build a mental model for what effective docs look like and feel they have a solid strategy when authoring. * Current [documentation guide](https://docs.jupyter.org/en/latest/contributing/docs-contributions/index.html) is strictly about tools, infrastructure, and workflows, not authoring/philosophy * > Mike: we do have something about authoring in https://jupyterlab.readthedocs.io/en/stable/developer/contributing.html#writing-documentation * Referenced in the call re types of tutorials: https://www.writethedocs.org/videos/eu/2017/the-four-kinds-of-documentation-and-why-you-need-to-understand-what-they-are-daniele-procida/ * Daniele Procida is the author of Diataxis * Matthias: Could audience-oriented documentation structure enhance LLM resources like [DeepWiki](https://deepwiki.com/jupyterlab/jupyterlab)? * Mike (will likely not be able to attend today) * JupyterLab 4.5.0 released (silent, no big announcement yet) * (we had another RC on Thursday too) * https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.0 * anyone volunteer to start writing a blog post? * Rosio can help and collaborate with anyone else interested! * Looking for a review on https://github.com/jupyterlab/jupyterlab/pull/18125 * Closed a long-standing RTC related scroll to top issue with jupyter-ydoc and jupyter-collaboration releases https://github.com/jupyterlab/jupyterlab/issues/14106 - we need more integration tests; I wish we had more eyes on jupyter-ydoc (since it is also used by jupyter-server-documents), what are the blockers for folks to contribute? * Matt: RTC is hard :) I'd love to see a conceptual introduction of how this works under-the-hood, e.g. as a YouTube video. Maybe a "my first collaborative extension" tutorial? * Many PRs need review in lab. [PR Triage board](https://github.com/orgs/jupyterlab/projects/11/views/1?filterQuery=state%3Aopen+-state%3Adraft+repo%3Ajupyterlab%2Fjupyterlab) * Jeremy * Notebook 7.5.0 released (also silent) * JupyterLite 0.7.0rc0 * Vidar * @Zsailer opened a PR on jupyter-server repo for a new way of managing kernel ZMQ connections and channel tracking for kernel messages (as discussed in last weeks meeting). Would love for people to have a look at if you rely on internals of kernel message IDs for any extension: [jupyter_server#1570](https://github.com/jupyter-server/jupyter_server/pull/1570) * Rosio * Community call happening on Thursday December 4th at 8am PST ([blog post](https://blog.jupyter.org/jupyter-community-call-december-2025-f0cf14e857ed)) ## Wednesday, November 12 | Name | Affiliation | GitHub | | -----|-------------|--------| | Zach Sailer | Apple | @Zsailer | | Mike Krassowski | OpenTeams | @krassowski | | Ian Thomas | QuantStack | @ianthomas23 | | Rosio Reyes | Anaconda | @RRosio | | Nicolas Brichet | QuantStack | @brichet | | Vidar Fauske | JP Morgan Chase | @vidartf | | Matthias Meschede | QuantStack | @mmesch | | A. T. Darian | QuantStack | @afshin | | Andrii Ieroshenko | AWS | @andrii-i | | Konstantin Taletskiy | Anaconda | @ktaletsk | | Jason Grout | Independent | @jasongrout | * Mike * Out of band changes issues * {%preview https://github.com/jupyterlab/jupyterlab/issues/18100 %} * {%preview https://github.com/jupyterlab/jupyterlab/pull/18101 %} * Converting docs to Markdown merge {%preview https://github.com/jupyterlab/jupyterlab/pull/18044 %} * JupyterLab 4.5.0 release * [discuss] soft-blocked on {%preview https://github.com/jupyterlab/jupyterlab/pull/18091 %} * good time to start discussing blog post * 156 views of the 4.5 changelong that we know thanks to https://plausible.io/jupyterlab.readthedocs.io/pages * Looking for reviews on PRs: * {%preview https://github.com/jupyterlab/jupyterlab/pull/18087 %} * {%preview https://github.com/jupyterlab/jupyterlab/pull/18080 %} * Zach - Jupyter Server Documents * Intro to [Next Generation Kernels API in the Server](https://github.com/Zsailer/nextgen-kernels-api) * Intro to [Jupyter Server Documents](https://github.com/jupyter-ai-contrib/jupyter-server-documents) * Ian * Can we have official renaming of this meeting and the hackmd notes to include server and kernel, now that the separate server/kernel meeting has been removed? * Mike: "Jupyter Frontends and Accessibility and Server and Kernels" or just "Jupyter Core Meeting"? * Ian: I prefer the latter, and we can have the full list in the subsequent text (e.g. meeting description). * Using "Jupyter Applications", need to check how to change the super-title of the hackmd notes. * For now, changed to "Jupyter Contributor Meeting: Frontends, Kernels, Server, Accessibility" * Matthias: * update on agent triaging: * some stats * how to proceed discussion * Maybe taking some ideas from the [PR Triage board](https://github.com/orgs/jupyterlab/projects/11/views/1) is a way to proceed with triaging issues. Jason and Matthias will explore this offline. * PR discussion: * hiding main menu (https://github.com/jupyterlab/jupyterlab/pull/18098): * How to get back? Setting/hamburger/text notiffication * Presentation mode (evolving Simple/Presentation names) * Standard content for empty Markdwon cells that are rendered https://github.com/jupyterlab/jupyterlab/issues/12132 * Rosio: * [Community Call](https://hackmd.io/@LO9atHZCQnWJhKUnBv2UWQ/HkM0gOukbx) on December 04, 2025 at 8am PST, to be announced via blog post (need 1 more approval for publishing blog) and social media soon. ## Wednesday, November 5 | Name | Affiliation | GitHub | | -----|-------------|--------| | Mike Krassowski | OpenTeams | @krassowski | | Thomas Dutkiewicz | STScI | @ttdu | | Jenn Kotler | STScI | @jenneh | CFP results are in https://blog.jupyter.org/announcing-our-first-jupyter-community-funded-proposals-dd5263c19be3 - accesssibility work included! JupyterLab 4.5.0 RC is out https://jupyterlab.readthedocs.io/en/latest/getting_started/changelog.html#v4-5 We skipped recording due to low attendance as this is JupyterCon week. ## Wednesday, October 29 | Name | Affiliation | GitHub | | -----|-------------|--------| | Andrii Ieroshenko | AWS | @andrii-i | | Rosio Reyes | Anaconda | @RRosio | | Mike Krassowski | OpenTeams | @krassowski | | Konstantin Taletskiy | Anaconda | @ktaletsk | | Ian Thomas | QuantStack | @ianthomas23 | | Jeremy Tuloup | QuantStack | @jtpio | | Nicholas Bollweg | | @bollwyvl | * Andrii- Show more outputs button design * Previous merged PR and merge follow-up discussion https://github.com/jupyterlab/jupyterlab/pull/18021 * Current open PR with different options and current discussion https://github.com/jupyterlab/jupyterlab/pull/18032 * Mike * Let's release RC today! * {%preview https://github.com/jupyterlab/jupyterlab/pull/18043 %} * {%preview https://github.com/jupyterlab/jupyterlab/pull/17767 %} * {%preview https://github.com/jupyterlab/jupyterlab/pull/16880 %} * {%preview https://github.com/jupyterlab/jupyterlab/pull/18044 %} * for the next release * {%preview https://github.com/jupyterlab/jupyterlab/pull/18051 %} * {%preview https://github.com/jupyterlab/jupyterlab/pull/18030 %} ## Wednesday, October 22 | Name | Affiliation | GitHub | | -----|-------------|--------| | Mike Krassowski | OpenTeams | @krassowski | | Rosio Reyes | Anaconda | @RRosio | | Konstantin Taletskiy | Anaconda | @ktaletsk | | Thomas Dutkiewicz| Space Telescope Science Institute |@ttdu | | | Jason Grout | Independent | @jasongrout | | Nicholas Bollweg | | @bollwyvl | ### Agenda * Mike * releases * jupyterlab_server https://github.com/jupyterlab/jupyterlab_server/releases/tag/v2.28.0 * jupyterlab 4.4.10 and 4.5.0b1 https://github.com/jupyterlab/jupyterlab/releases/tag/v4.4.10 * Release 4.5.0 user-facing changelog https://github.com/jupyterlab/jupyterlab/pull/17967 * Jeremy * Notebook 7.5.0b1 release * Used the npm trusted publishers, and it worked! https://github.com/jupyter/notebook/issues/7745 * Still need the releaser to handle npm 11 * npm 11 support: https://github.com/jupyter-server/jupyter_releaser/issues/617 * Releaser CI is broken: https://github.com/jupyter-server/jupyter_releaser/issues/620 * Daylight savings time ending: Europe ends Daylight Savings Time Oct 26, but US ends it on Nov 2. This means: * meetings anchored in US (like this one) will be an hour earlier in Europe next week * meetings anchored in Europe will be an hour later in US next week. ### Off the Record * Conversation about attending JupyterCon 2025 sprints * Looking through PRs tagged with the 4.5.0 milestone ## Wednesday, October 15 | Name | Affiliation | GitHub | | -----|-------------|--------| | Jason Grout | Independent | @jasongrout | | Rosio Reyes | Anaconda | @RRosio | | Ian Thomas | QuantStack | @ianthomas23 | | Jeremy Tuloup | QuantStack | @jtpio | | Andrii Ieroshenko | AWS | @andrii-i | | Mike Krassowski | OpenTeams | @krassowski | | R Ely | Bloomberg | @ohrely | | Matthias Meschede | QuantStack | @mmesch | | Andrii Ieroshenko | AWS | @andrii-i | | Nicolas Brichet | QuantStack | @brichet | ### Agenda * Ian - ipykernels subshells update * 7.0.0 released 2025/10/13 as planned * Catch-all issue for all problems at https://github.com/ipython/ipykernel/issues/1438 * 7.0.1 fixed python 3.14 * More bug fixes and releases to come * Some major problems like event loops * Lab is pinning to ipykernel<7 as there are lots of test problems that we need to solve * Thanks to all who have been helping in ipykernel repo * Planning faster release cadence in future, more in line with JupyterLab and ipython * Jeremy: * npm trusted publishers: https://github.com/jupyterlab/jupyterlab/issues/17993 * Requires npm>11.5.1: https://github.com/jupyterlab/maintainer-tools/pull/259 * Next step: Jeremy is testing the workflow with the next notebook release (which publishes multiple packages) - Matthias (@mmesch): - best place to centralize information on Accesibility projects? - continued issue trimming if time permits. - Will email the accessibility council email list and open an issue in the accessibility issue * Mike * Planning to release JupyterLab 4.5.0b1 today/tomorrow * We are now testing on Firefox :tada: https://github.com/jupyterlab/jupyterlab/pull/17965 * I'm tagging new enhancement/feature PRs for 4.6, if you do not agree on any specific PR please speak up/write a comment * Updated council automation and membership in https://github.com/jupyterlab/council/pull/35 and https://github.com/jupyterlab/council/pull/34 * Jason (@jasongrout): FYI, we are looking at migrating the council mailing lists to the jupyter.org Google workspace account. * See https://github.com/jupyter-governance/ec-team-compass/issues/150 for more details. * Action item: add the LF project managers to jupyter-server council google group * Action item: I updated the JupyterLab council email list to be inactive (restricted posting, changed description to say it is inactive and superseded by the jupyter-frontends council list, etc.). Can we do the same for the jupyter-notebook council google group? - Andrii: testing Python 3.14, is JupyterLab 4.5.0b0 / 4.4.9 working for you in fresh installs / fresh environmemts? ## Wednesday, October 8 | Name | Affiliation | GitHub | | -----|-------------|--------| | Rosio Reyes | Anaconda | @RRosio | | Ian Thomas | QuantStack | @ianthomas23 | | Konstantin Taletskiy | Anaconda | @ktaletsk | | Jenn Kotler | Space Telescope Science Institute | @Jenneh | Matthias Meschede | QuantStack | @MMesch | | Jeremy Tuloup | QuantStack | @jtpio | | Thomas Dutkiewicz | Space Telescope Science Institute | @ttdu | | Andrii Ieroshenko | AWS | @andrii-i | | | | | ### Agenda * Ian - subshells * Planning ipykernel 7.0.0 release on Monday * Major release, there are some backwards incompatibilities in downstream projects. * JupyterLab UI tests more flaky, working on this. * Anyone having problems with it should pin to `ipykernel < 7` and report the problems. * Ian will create an issue for the release in the ipykernel repo and refer everyone to it. * Jenn and Thomas - New Accessibility project, getting understanding of current status * Matthias - Issue analysis / triaging project ## Wednesday, October 1 | Name | Affiliation | GitHub | | -----|-------------|--------| | Dan Yeaw | Anaconda | @danyeaw | | Jason Grout | Independent | @jasongrout | | Konstantin Taletskiy | Anaconda | @ktaletsk | | Andrii Ieroshenko | AWS | @andrii-i | | Mike Krassowski | OpenTeams | @krassowski | | R Ely | Bloomberg | @ohrely | | Ryan Lovett | UC Berkeley | @ryanlovett | |Balaji Alwar|UC Berkeley| @balajialg | |Chanbin Park| UC Berkeley | @chanbinski | ### Agenda * Zach gave a quick demo of current progress in the Jupyter AI efforts. * Current discussion at https://github.com/orgs/jupyter-ai-contrib/discussions/1 * There will be a group of people working on Jupyter AI things at the JupyterCon sprints, Thursday Nov 6. Join if you are interested! * Ely: * Jupyter Open Studio Day in San Francisco on Monday, November 10th. Register at https://go.bloomberg.com/attend/invite/jupyter-open-studio-day-november-10-2025/ * Mike - First JupyterLab 4.5.0 beta is out: - changes since alpha 4: https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.0b0 - give it a try on binder https://mybinder.org/v2/gist/krassowski/f2ae89714e8ce043355f8d709212d8e1/HEAD?urlpath=lab - install it from PyPI https://pypi.org/project/jupyterlab/4.5.0b0/ (or conda-forge) - getting more testing on try.jupyter.org - maybe separate subdomain - cross-linking them via in-app notifications? - maybe a separate button? - make it easier to report issues - should we make it possible to `dispose()` the lumino `Application`? https://github.com/jupyterlab/lumino/issues/766 - Reloading extensions is not possible and breaks API https://github.com/jupyterlab/jupyterlab/issues/17854 context: we have `deactivate()` in lumino since v2 https://github.com/jupyterlab/lumino/pull/377 - [Nick] Create a new plugin base class that is more opinionated and makes the plugin process more streamlined. For example, the base class has a deactivate method required. Or even better, make plugin development much more streamlined for simple cases. For example, could you make a plugin that is just a generator function, where we yield back to you in different lifecycle phases of a simple plugin? A huge incentive here is lowering the friction for boilerplate things. For example, signal lifecycle management - can we keep track of signals that you listen to and automatically unregister them in a deactivate method? * Balaji Alwar and Chanbin Park * JupyterLab-a11y-checker extension intro & learnings from usage of axe engine. https://docs.google.com/presentation/d/1u4Jtsp8IMqG-YFlssIMbs0OtQlr9gppAt7sVtzR4vo8/edit?usp=sharing * The end user here is a notebook author to add things like image alt text, fixing contrast in embedded images, etc. * There is an ongoing discussion about Jupyter AI integration you might be interested in looking at: https://github.com/orgs/jupyter-ai-contrib/discussions/1 * also, feel welcome to open issues on https://github.com/jupyterlab/jupyterlab/issues suggesting any extension points that would make your life devloping this extension easier * Experimented with asking an LLM to look at a notebook and detect/fix issues, but for now we are focusing on interactive fixing. * See also https://github.com/jtpio/jupyterlab-browser-ai/pull/2 and https://arxiv.org/html/2503.20089v1 ## Wednesday, September 24 | Name | Affiliation | GitHub | | -----|-------------|--------| | Andrii Ieroshenko | AWS | @andrii-i | | Rosio Reyes | Anaconda | @RRosio | | Mike Krassowski | OpenTeams | @krassowski | | Jeremy Tuloup | QuantStack | @jtpio | | Dan Yeaw | Anaconda | @danyeaw | | Ian Thomas | QuantStack | @ianthomas23 | | Jason Grout | Independent | @jasongrout | ### Agenda - Jeremy - Try the content visibility windowing mode - https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.0a4 - https://github.com/jupyter/notebook/releases/tag/v7.5.0a3 - https://github.com/jupyterlite/jupyterlite/releases/tag/v0.7.0a6 - Mike - planning on releasing 4.4.8 tomorrow - Jason * [Jupyter Foundation proposal CFP](https://blog.jupyter.org/your-ideas-our-support-jupyter-community-call-for-funding-proposals-f4642590ae76) open until Sep 28 (this Sunday). Any proposals people are interested in working on? * JupyterCon registration: [Adding announcement](https://github.com/jupyter-governance/ec-team-compass/issues/145) various places in Jupyter spaces * Already added banner to [jupyterlab docs](https://jupyterlab.readthedocs.io/en/latest/) * Send announcement via JupyterLab toast? https://github.com/jupyterlab/assets/pull/4 * Could folks signal-boost [this sign-up call to action](https://www.linkedin.com/feed/update/urn:li:activity:7372343261597761536) for JupyterCon on LinkedIn? ## Wednesday, September 17 | Name | Affiliation | GitHub | | -----|-------------|--------| | Andrii Ieroshenko | AWS | @andrii-i | | Rosio Reyes | Anaconda | @RRosio | | Mike Krassowski | OpenTeams | @krassowski | | Ian Thomas | QuantStack | @ianthomas23 | | Vidar Fauske | JP Morgan Chase | @vidartf | | Jeremy Tuloup | QuantStack | @jtpio | | Jason Grout | Independent | @jasongrout | ### Agenda * Andrii * Triaging group update: Rosio and me created 'docker' label + have not closed an issue involving Jupyter and docker interoperability for visibility and categorization. Issue example https://github.com/jupyterlab/jupyterlab/issues/17807 * Mike * looking for review on {%preview https://github.com/jupyterlab/jupyterlab/pull/17882 %} * {%preview https://github.com/jupyterlab/jupyterlab/pull/17894 %} * inferring the parent channel from message type can be ambigious in some cases (e.g. completion) * maybe propose just putting it next to parent hedear * {%preview https://github.com/ipython/ipykernel/issues/1433 %} * Should we call a feature freeze on 4.5.0? {%preview https://github.com/jupyterlab/jupyterlab/issues/17449 %} * Some discussion about recording lists of actions, like making a macro based on recording commands run by the user (i.e., the user does stuff in the ui, and the commands that were activated are recorded) * command cli https://github.com/deathbeds/jyg * browser junk the hard way https://github.com/deathbeds/jupyterlite-pyodide-lock * This would be useful in setting up tests * Vidar * Jupyter server/kernels call * Nicolas * run cell button in input prompt {%preview https://github.com/jupyterlab/jupyterlab/pull/17775 %} * Jason * [PR triage board](https://github.com/orgs/jupyterlab/projects/11) available from [JupyterLab Projects](https://github.com/jupyterlab/jupyterlab/projects) * It is easy to filter for PRs from a specific repo, for example, filter just for [JupyterLab PRs](https://github.com/orgs/jupyterlab/projects/11/views/1?filterQuery=state%3Aopen+-state%3Adraft+repo%3Ajupyterlab%2Fjupyterlab) * It is [relatively straightforward](https://github.com/yuvipanda/pr-triage-board-bot?tab=readme-ov-file#set-up) to set up similar boards for other orgs or repos. ## Wednesday, September 10 | Name | Affiliation | GitHub | | -----|-------------|--------| | Mike Krassowski | OpenTeams | @krassowski | | Rosio Reyes | Anaconda | @RRosio | | Jeremy Tuloup | QuantStack | @jtpio | | Andrii Ieroshenko | AWS | @andrii-i | | Ian Thomas | QuantStack | @ianthomas23 | | Jason Grout | Independent | @jasongrout | | Vidar Fauske | JP Morgan | @vidartf | | Dan Yeaw | Anaconda | @danyeaw | | Sanjiv Das | AWS & SCU | @srdas | | Bhavana Nair| Northeastern University | @bhavana-nair | |||| ### Agenda * Jeremy * 4.5 release timeline? * https://github.com/jupyterlab/jupyterlab/issues/17449 * Content-visibility PR: https://github.com/jupyterlab/jupyterlab/issues/16327 * Ready to be merged? * Jason * [Community workshop](https://blog.jupyter.org/jupyter-community-workshops-are-back-3cca15d02975), CFP closes this Sunday. For example, JupyterHub/Book are working on a workshop for roadmapping. * Jeremy and Zach are working on an AI-focused community workshop. Conversation happening on Zulip. * [Foundation Funding Proposal](https://blog.jupyter.org/your-ideas-our-support-jupyter-community-call-for-funding-proposals-f4642590ae76): CFP is open until Sep 28. * [PR Triage board](https://github.com/orgs/jupyterlab/projects/11/views/1): any feedback? * Some already-opened issues: https://github.com/yuvipanda/pr-triage-board-bot/issues * Classifying maintainers on an org level, not a repo level. * FYI, several of us are working on a JupyterLab workshop: https://events.linuxfoundation.org/jupytercon/program/schedule/, https://events.linuxfoundation.org/jupytercon/program/schedule/ ### Off the Record * Foundation Funding CFP open until Sep 28! ## Wednesday, September 3 | Name | Affiliation | GitHub | | -----|-------------|--------| | Mike Krassowski | OpenTeams | @krassowski | | Rosio Reyes | Anaconda | @RRosio | | Jeremy Tuloup | QuantStack | @jtpio | | Andrii Ieroshenko | AWS | @andrii-i | | Vidar Fauske | JP Morgan | @vidartf | | Andrii Ieroshenko | AWS | @andrii-i | | Ian Thomas | QuantStack | @ianthomas23 | | Jason Grout | Independent | @jasongrout | |||| ### Accessibility Topics ### Agenda * Jeremy: * Quick open in core JupyterLab? https://github.com/jupyterlab/jupyterlab/pull/17846 * [Nick] File operations are blocking. Don't use https://pypi.org/project/aiofiles/ - you're better off owning your own threads. * [Nick] Can we expand this to a more general search? API also probably should have a time limit for the operation * Ian * Update on subshells. Blockers for ipykernel 7.0.0 release: * ipykernel bug using debugger in JupyterLab * ipympl release * Jason * [Community call](https://blog.jupyter.org/jupyter-community-call-september-2025-e4d2cfa3ea41) tomorrow * [Jupyter workshops CFP](https://blog.jupyter.org/jupyter-community-workshops-are-back-3cca15d02975) open until Sunday * [Jupyter Foundation proposal CFP](https://blog.jupyter.org/your-ideas-our-support-jupyter-community-call-for-funding-proposals-f4642590ae76) open until Sep 28 * Andrii * Should we discuss kernel message mutation in https://github.com/jupyter/notebook/pull/7713 potentially? See discussion at https://github.com/jupyter/notebook/pull/7713#discussion_r2313339435 ### Off the Record * Jason * Thoughts about combining this and server/kernels dev meeting? * Andrii: I think that would make a lot of sense * Let's try this again next week. Vidar will attend the server/kernels meeting for the next few weeks. We'll plan to make a decision 2 weeks from today for going forward. * Vidar * I still have a PR for Lumino (https://github.com/jupyterlab/lumino/pull/291). I saw there was a triage board added, not sure if relevant or not. * Project at https://github.com/orgs/jupyterlab/projects/11/views/1 - it is read-only and meant to be a helpful experiment. This does not add any process for PRs. Feel free to view/search the project board if it is helpful.

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