Relax Zygote compat from 0.7.10 to 0.7#532
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ChrisRackauckas merged 1 commit intoSciML:masterfrom Jan 26, 2026
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This allows using any Zygote 0.7.x version, which is needed to work around a Julia base bug (typo in Base.Meta.partially_inline!) that is triggered by Zygote 0.7.10 when differentiating through @cfunction with type parameters. The specific error occurs in Julia's base/meta.jl:412 where `spvals` is used instead of `static_param_values`, causing an "UndefVarError: `spvals` not defined" error when using Zygote with packages like Cubature.jl. By relaxing the constraint to allow Zygote 0.7.0-0.7.9, downstream packages can avoid this bug until Julia fixes the typo in base. Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
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Summary
0.7.10to0.7Rationale
There's a typo bug in Julia's base/meta.jl (line 412) where
spvalsis used instead ofstatic_param_values. This bug causes anUndefVarError: spvals not defined in Base.Metaerror when Zygote 0.7.10 is used to differentiate through functions that use@cfunctionwith type parameters (like Cubature.jl's integration routines).By relaxing the constraint to allow Zygote 0.7.0-0.7.9, downstream packages like NeuralPDE.jl can work around this bug until Julia fixes the typo in base.
This is part of a series of PRs to relax Zygote constraints across the SciML ecosystem:
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