Release jupyterlab-jupytext==1.3.9

[mwouts]

This is the last version of the extension compatible with jupyterlab==3.x.

[codecov]

Codecov Report

Merging #1068 (88d1f0c) into main (08e187d) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1068   +/-   ##
=======================================
  Coverage   99.04%   99.04%           
=======================================
  Files         120      120           
  Lines       11120    11120           
=======================================
  Hits        11014    11014           
  Misses        106      106           

Impacted Files	Coverage Δ
jupytext/version.py	100.00% <100.00%> (ø)

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[bluss]

I'm just wondering, pip doesn't see this requirement on jupyterlab (<4) and the two packages are still installable together, not sure if there is something more than can be done.

[mwouts]

I'm just wondering, pip doesn't see this requirement on jupyterlab (<4) and the two packages are still installable together, not sure if there is something more than can be done.

Well that one was just a build requirement. Jupytext mostly works with JupyterLab 4, it's only the jlab extension that does not. We have an alpha version of an extension for JLab 4 which can be installed following this comment. Please follow that issue to learn more about the future evolutions on that topic.