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MyST unusable with current Sphinx dev HEAD (future 8.3.0) #1042
Description
Activity
cc @chrisjsewell as Sphinx 9 is coming up. Do you think it's possible to resolve this on the MYST side?
A
Heya, I guess there is no longer an 8.3 being released and you are skipping straight to v9?
This is less problematic, as the package is already currently bound to sphinx<9.
I'm on holiday for the next week, so probably won't be able to look until after then (also at breaking changes in the newest docutils)
Reacted by Oluf Lorenzen- linked a pull request that will close this issue⬆️ Support Sphinx v9 #1076
on Dec 15, 2025 See #1076 (comment)
Probably we can close this, as @AA-Turner added a workaround patch to Sphinx in time for Sphinx 9.0 release, and the 8.3.0 referred-to in the original title did not come into existence, Sphinx having jumped to 9.0.
And #1076, #1077 appear to be the places for discussion of Sphinx v9 compatibility.
Hmm, sorry, actually the patch by @AA-Turner is for 9.1.0, it was not there in 9.0.
What version of
myst-parserare you using?4.0.1
What version dependencies are you using?
Sphinx 8.3.0+/ead64dfda
What operating system are you using?
Mac
Describe the Bug
This index.md
leads to
KeyError: 'writer'when attempting to exercise the Sphinx HTML builder.I am opening this to be sure Sphinx upstream situation at sphinx-doc/sphinx#13713 is monitored prior to Sphinx 8.3.0 release.
Expected Behavior
No response
To Reproduce
No response