Does sphinx+rst support strikethrough for LSST Technical Notes?

I’d like to use strikethrough in a rst document I’m writing for a DM Technical Note.

~strikeThisThrough~

Works in my grip render but does not appear in the rendered branch version on, e.g.,

https://dmtn-091.lsst.io/v/DM-15348/index.html

No, it doesn’t appear to be part of reStructuredText or implemented in docutils or Sphinx. It could be reasonable to implement, though.

Do you need this feature permanently for the technote, or is it to temporarily show changes to collaborators?

Permanently was the idea. But “need” is too strong a word. I’ll denote the same information in other ways.

Thanks very much for the confirmation that a thing is not possible. That’s often the most useful thing to know.