4.2 Release Plan

[krassowski]

Current Status

4.1.0 was released two weeks ago. A first 4.1.1 patch version was released on Monday.

This is an issue to track the features for the 4.2 release.

Features

There are currently 85 items in the 4.2.0 milestone: https://github.com/jupyterlab/jupyterlab/milestone/76.

We can document major planned features for coordination. PR ready by the feature freeze date will be reviewed, but please aim to share things you plan to contribute to 4.2.0 ahead (by commenting in this issue, or editing this list if you have access) to allow time for discussion.

Feel free to edit this list or comment below to add more items:

• Support server-side execution #15448 (implemented in jupyter-collaboration extension)
• Add filtering notebook cells with tags #15157 (deferred to 4.3)
• Reopen recently opened/closed files and modal navigation #15483
• Implement Workspaces GUI #15946
• Enable full notebook windowing mode by default #15964
• Upgrade xterm.js from 5.1.0 to 5.5.0 #15962
• Re-organise the kernel tree in sidebar #15845
• Dark High Contrast Theme for JupyterLab with Improved Sidebar Focus Indication #15623
• Create, display and show shortcut number in overlay  #15155 (deferred)

Timeline (provisional)

• feature freeze: 27 March (beta0 release; no additional pull requests adding new features would be considered past this date)
• first release candidate: 17 April (rc0 release if no release blockers identified)
• final release: 1 May 3 May (at a minimum one week after RC)

[krassowski]

The first alpha of 4.2.0 is out (https://github.com/jupyterlab/jupyterlab/releases/tag/v4.2.0a0, https://pypi.org/project/jupyterlab/4.2.0a0/). As a remainder, by the timeline above there are three more weeks to prepare feature pull requests that would go into 4.2.0 release.

[jtpio]

For reference the first Notebook 7.2.0a0 (based on JupyterLab 4.2.0a2) is out: https://github.com/jupyter/notebook/releases/tag/v7.2.0a0

[krassowski]

The first beta for 4.2.0 is out:

• https://github.com/jupyterlab/jupyterlab/releases/tag/v4.2.0b0
• https://pypi.org/project/jupyterlab/4.2.0b0/

[fcollonval]

I don't know if we should investigate - more to share the information. The wheel size on PyPi between 4.1.5 and 4.2.0b0 as increased by 0.2Mo (from 11,4Mo to 11,6Mo). And the conda package size increase is of 0.5Mo 😕

[krassowski]

PyPI wheel sizes:

• jupyterlab 4.1.5: 11.4 MB
• 4.2.0a0: 11.5 MB
• 4.2.0a1: 11.5 MB
• 4.2.0a2: 11.6 MB (workspaces UI - a new package, CodeMirror upgrade?)
• 4.2.0b0: 11.6 MB

Does not seem to be a rapid increase due to any particular version. No idea why conda is swelling faster though.

[jtpio]

FYI Notebook 7.2.0b0 was just published: https://github.com/jupyter/notebook/releases/tag/v7.2.0b0

But there are still some issues w.r.t the full notebook windowing mode. So Notebook currently defaults to defer. This is currently being investigated in:

• Default to the full windowing mode jupyter/notebook#7321
• CSS issue when the Notebook windowing mode is set to full jupyter/notebook#7231
• Fix the default notebook windowing mode jupyter/notebook#7318

Any help on this welcome!

[krassowski]

JupyterLab 4.2.0rc0 is out! You can test it on

• https://pypi.org/project/jupyterlab/4.2.0rc0/
• https://github.com/jupyterlab/jupyterlab/releases/tag/v4.2.0rc0

[krassowski]

Closing as JupyterLab 4.2.0 was released yesterday 🎉