Relax Zygote compat from 0.7.10 to 0.7#1220
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ChrisRackauckas merged 1 commit intoSciML:masterfrom Jan 26, 2026
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This allows earlier Zygote 0.7.x versions to be used. The strict 0.7.10 requirement was preventing NeuralPDE from using older Zygote versions to work around a Julia base bug that causes `spvals not defined in Base.Meta` errors when differentiating through Cubature's `integrands` function. See: SciML/NeuralPDE.jl#1020 Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
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Summary
Relaxes Zygote compat from
0.7.10(strict) to0.7(allows any 0.7.x).Problem
The strict
Zygote = "0.7.10"requirement prevents downstream packages like NeuralPDE from using older Zygote versions to work around a Julia base bug.When Zygote 0.7.10 differentiates through Cubature's
integrandsfunction (which uses@cfunctionwith type parameters), it triggers:This is caused by a typo in Julia's
base/meta.jlline 412 that has existed since 2018.Why relax to 0.7?
Relaxing to
0.7allows the resolver to potentially select an earlier 0.7.x version that might avoid triggering the bug path, or at minimum gives downstream packages flexibility to experiment with version combinations.Related
Test plan
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