Hi all,

there are a few optimize PRs that I could do with help on the reviewing/dev/merge cycle on. They're mainly to solve various issues which a few people have been reporting related to the numerical differentiation changes for minimize methods in 1.5. In order of importance:

(https://github.com/scipy/scipy/pull/11263 this one needs me to do a rebase and fix a merge conflict, and I don't think there are reviewer objections to this.)

I'm asking for help because they're non-trivial changes and I'd like to see them merged (or the issues addressed) well before 1.6 to give a chance for further issues to be resolved. Also, they're all touching the same area of code and when one gets merged they might create further merge conflicts.

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Dr. Andrew Nelson

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