Downgrade: raise PrecompileTools compat floor to 1.1#80
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ChrisRackauckas merged 1 commit intoJun 15, 2026
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…olvable at downgrade minimum) At the downgrade minimum the `PrecompileTools = "1"` floor resolves to PrecompileTools v1.0.0, which does not define `@recompile_invalidations` (that macro was introduced in PrecompileTools v1.1.0). A transitive dependency, StaticArrayInterface, uses `@recompile_invalidations`, so precompilation fails with `UndefVarError: @recompile_invalidations not defined`, cascading to DiffEqBase / ModelingToolkit / MATLABDiffEq. Bumping the floor to 1.1 (the first version that defines the macro) forces the resolver to pick PrecompileTools >= 1.1.0 everywhere. Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com> Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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June 15, 2026 04:57
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Downgrade fix: raise PrecompileTools compat floor to 1.1
The conflict
The
Downgradeworkflow fails on the LTS (Julia 1.10) during precompilation:Why the old floor was impossible
@recompile_invalidationsis a macro provided by PrecompileTools, and it was only introduced in PrecompileTools v1.1.0 (the v1.0.x line exports only@setup_workloadand@compile_workload). At the downgrade minimum the declaredPrecompileTools = "1"floor resolves to PrecompileTools v1.0.0. The transitive dependency StaticArrayInterface uses@recompile_invalidations, so on v1.0.0 it cannot precompile. The old floor was therefore never co-installable with the rest of the dependency tree at the downgrade minimum.The fix
Raise the floor to
PrecompileTools = "1.1"— the smallest version that defines@recompile_invalidations. This forces the resolver to pick PrecompileTools >= 1.1.0 everywhere.Resolve/precompile verification (local, Julia 1.10.11 = CI lts)
Isolated PrecompileTools + StaticArrayInterface, precompiled each:
Note on the latest-versions ("Tests") job
The
Testsworkflow onmasteris separately red, but for an unrelated reason: the MATLAB engine cannot be provisioned on the CI runner, soMATLAB.MSession(...)throwsUndefRefError: access to undefined referenceat runtime. That is an environment limitation, not a versioning issue, and is not addressed here. This PR only fixes the downgrade-specific precompile failure.This PR is a draft. Ignore until reviewed by @ChrisRackauckas.
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