Bump compat for OrdinaryDiffEq v7 / SciMLBase v3 ecosystem#4476
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ChrisRackauckas merged 1 commit intoSciML:masterfrom Apr 27, 2026
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Widen compat across Project.toml, lib/ModelingToolkitBase/Project.toml, and docs/Project.toml for the OrdinaryDiffEq v7 / StochasticDiffEq v7 / DelayDiffEq v6 majors introduced in SciML/OrdinaryDiffEq.jl#3562 and SciML#3565. Compat changes (all widened to include new major): ModelingToolkit: DelayDiffEq: 5.61 → 5.61, 6 OrdinaryDiffEq: 6.82.0 → 6.82.0, 7 (re-add v7 after revert) OrdinaryDiffEqBDF: 1 → 1, 2 OrdinaryDiffEqDefault: 1.2 → 1.2, 2 OrdinaryDiffEqNonlinearSolve: 1.5.0 → 1.5.0, 2 OrdinaryDiffEqRosenbrock: 1 → 1, 2 StochasticDiffEq: 6.82.0 → 6.82.0, 7 ModelingToolkitBase: DelayDiffEq: 5.61 → 5.61, 6 ImplicitDiscreteSolve: 0.1.2, 1 → 0.1.2, 1, 2 OrdinaryDiffEq: 6.82.0 → 6.82.0, 7 OrdinaryDiffEqDefault: 1.2 → 1.2, 2 OrdinaryDiffEqNonlinearSolve: 1.5.0 → 1.5.0, 2 StochasticDiffEq: 6.82.0 → 6.82.0, 7 docs: OrdinaryDiffEq: 6.31 → 6.31, 7 StochasticDiffEq: 6 → 6, 7 Source migrations for v7 breaking changes: - test/fmi/fmi.jl: Rodas5P(autodiff = false) → Rodas5P(autodiff = AutoFiniteDiff()) (Bool-typed autodiff removed in OrdinaryDiffEq v7; must use ADTypes object) - lib/ModelingToolkitBase/test/sdesystem.jl: ensemble prob_func/output_func signatures updated from (prob, i, repeat)/(sol, i) to (prob, ctx)/(sol, ctx) with ctx.i replacing the positional index argument (SciMLBase v3 change) Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
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The PR previously widened `OrdinaryDiffEq = "6.103, 7"` but kept `DiffEqBase = "6.211.0"` capped at v6, which is why CI's resolver silently picks OrdinaryDiffEq v6.111.0 — DiffEqBase v6 is incompatible with OrdinaryDiffEq v7's `DiffEqBase = "7"` requirement, so the resolver backs off to v6 across the board. This widening (`"6.211.0"` -> `"6.211.0, 7"`) is necessary but not yet sufficient: the next blocker is upstream — `ModelingToolkitBase v1.31.0` (the latest registered) caps `ImplicitDiscreteSolve = "0.1.2 - 1.11.0"`, forbidding `ImplicitDiscreteSolve v2`, which `OrdinaryDiffEqCore v4` requires. MTK's PR SciML/ModelingToolkit.jl#4476 already widens that compat in the MTKBase sublib but hasn't been released. Once ModelingToolkitBase is registered with the widened `ImplicitDiscreteSolve = "0.1.2, 1, 2"`, this PR's compat will admit the v7 line. Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
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Summary
Widens compat for the OrdinaryDiffEq v7 / StochasticDiffEq v7 / DelayDiffEq v6 majors from SciML/OrdinaryDiffEq.jl#3562 and #3565.
Follows up on #4467 (which bumped DiffEqBase v7, SciMLBase v3, OrdinaryDiffEqCore v4) by covering the remaining packages that got new majors.
Compat changes:
DelayDiffEq(MTK + MTKBase)5.615.61, 6OrdinaryDiffEq(MTK + MTKBase + docs)6.82.06.82.0, 7OrdinaryDiffEqBDF(MTK)11, 2OrdinaryDiffEqDefault(MTK + MTKBase)1.21.2, 2OrdinaryDiffEqNonlinearSolve(MTK + MTKBase)1.5.01.5.0, 2OrdinaryDiffEqRosenbrock(MTK)11, 2StochasticDiffEq(MTK + MTKBase + docs)6.82.0/66.82.0, 7/6, 7ImplicitDiscreteSolve(MTKBase)0.1.2, 10.1.2, 1, 2Source migrations (OrdinaryDiffEq v7 / SciMLBase v3 breaking changes):
test/fmi/fmi.jl(7 sites):Rodas5P(autodiff = false)→Rodas5P(autodiff = AutoFiniteDiff())— Bool-typedautodiffremoved in v7; must use ADTypes object.lib/ModelingToolkitBase/test/sdesystem.jl: ensembleprob_func(prob, i, repeat)/output_func = (sol, i) ->→prob_func(prob, ctx)/output_func = (sol, ctx) ->withctx.ireplacing the positional index — SciMLBase v3 ensemble interface change.No source migrations were needed for the other v7 breakages (
u_modified!,has_destats,DEAlgorithm/DEProblem/DESolution,concrete_solve,fastpow,QuadratureProblem,chunk_size,diff_type,standardtag,gamma/beta1/beta2PID kwargs) — grepped clean acrosssrc/,ext/, andlib/ModelingToolkitBase/src/.Note:
StochasticDelayDiffEq = "1.11"is left as-is; per the v7 NEWS, StochasticDelayDiffEq has no v7-compatible release planned and users should migrate to DelayDiffEq directly.Test plan
autodiff = AutoFiniteDiff()migration)prob_func/output_funcsignature migration)Pkg.add(["OrdinaryDiffEq@7", "StochasticDiffEq@7", "DelayDiffEq@6"])in a test environment resolves without conflicts🤖 Generated with Claude Code