Drop older SciML and JuliaSymbolics major versions from compat - #179
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ChrisRackauckas merged 2 commits intoAug 17, 2026
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Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
MTK 11 rejects time-dependent parameters from @parameters: "`@parameters` cannot create time-dependent parameters. Encountered q(t). Use `@discretes` for this purpose." @discretes is defined in ModelingToolkitBase and reexported by ModelingToolkit, and it is the intended way to declare the timeseries parameter this test asserts on (is_timeseries_parameter(sys, q)).
ChrisRackauckas
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August 17, 2026 11:20
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Please ignore this PR until it has been reviewed by @ChrisRackauckas.
What changed
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[compat]edits that drop older major versions of SciML and JuliaSymbolics packages. For each maintained dependency, only the current (non-yanked) major remains; an existing lower bound on that major is kept. No code, tests, or package version were changed.test/Downstream/Project.toml[test]SymbolicUtils:3.2→4(drop 3.2; current major is 4)test/Downstream/Project.toml[test]ModelingToolkit:9.60→11(drop 9.60; current major is 11)Why
JuliaSymbolics is treated as part of the SciML-maintained group for this policy. Supporting multiple majors keeps untested resolver windows. Current majors come from JuliaRegistries/General
Versions.toml, ignoringyanked = truereleases.Verification
Not verified here: the full test suite, QA, or a live
julia-downgrade-compatrun.