Myst | 2i2c

Accessibility improvements in Jupyter Book

Fri, 22 May 2026 00:00:00 +0000

We helped shepherd and implement a batch of accessibility improvements in myst-theme as part of the Jupyter Book project. The Jupyter Book team blogged about it here:

jupyterbook.org/blog/posts/2026/accessibility-improvements

Accessibility is a key part of making technology broadly impactful and useful, and it’s increasingly a requirement for the institutions we serve. The work started from an audit by Silas at BIDS, who surfaced and iterated on the issues with the rest of the Jupyter Book team.

A few of the fixes that landed:

Improved keyboard focus for horizontally scrollable content
Better ARIA semantics for screen readers
Better color contrast in ANSI outputs
Better re-flow / re-size for dynamic screen widths

The team also published accessibility statements you can point your own institutions to:

Acknowledgements #

Thanks to Silas ( @pancakereport) at BIDS for surfacing these issues and iterating on them!

Introducing Jupyter Book 2 at FOSDEM 2026

Fri, 06 Feb 2026 00:00:00 +0000

Our teammate Angus Hollands gave a talk at FOSDEM 2026: Introducing Jupyter Book 2.

The talk shares why the Jupyter Book 2 and MyST stack was rebuilt, and how it supports open, reusable computational publishing workflows.

Slide from the FOSDEM 2026 session introducing Jupyter Book 2.

Learn more #

Acknowledgements #

Thanks to Project Pythia and to BIDS for supporting deeper foundational contributions like this in Jupyter Book.
Thanks to the Jupyter Book team for helping out with slide creation and doing all the work Angus spoke about here!

New Jupyter Book / MyST stack release (Jan 2026)

Thu, 29 Jan 2026 00:00:00 +0000

The MyST/Jupyter Book stack shipped new releases this week. Release pages:

Where we contributed #

We’ve spent extra time lately trying to fix bugs and generally improve stability, reliability, and UX papercuts. Here are some of the things we focused on:

Extra review time to get in concurrent executions in mystmd
Fixing broken edit URL logic so our community “edit buttons” worked again
Standardized link styles so users know what to expect from links
Added extra hover metadata for github issues and PRs for communities that often link to their GitHub issues
Made all of these releases and wrote up the release notes!

Most of our contributions were foundational in nature - we fixed a bunch of bugs, did review on the PRs of others, and managed the release process itself. Check out the changelogs for more details!

Acknowledgements #

Thanks to our member communities - their memberships cover the cost of foundational upstream contributions to projects like these.

Particular thanks to Project Pythia which currently supports much of our upstream contributions in Jupyter Book.

These releases also support training communities that author curricula in MyST, including NASA ScienceCore.