SciML/ModelingToolkit.jl ModelingToolkitBase-v1.45.1

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ModelingToolkitBase ModelingToolkitBase-v1.45.1

Diff since ModelingToolkitBase-v1.42.2

Merged pull requests:

• Re-enable downgrade CI with genuine test-at-floor (allow_reresolve: false) (#4572) (@ChrisRackauckas-Claude)
• fix: allow using System in a multithreaded context (#4575) (@AayushSabharwal)
• refactor: use subset_ir and replace_node! in build_function_wrapper (#4578) (@AayushSabharwal)
• refactor: several TTFX improvements (#4582) (@AayushSabharwal)
• feat: add experimental CompilerOptions feature (#4587) (@AayushSabharwal)
• build: bump MTK patch version, MTKBase compat (#4593) (@AayushSabharwal)
• ci: uniformize onto centralized CI (project-model SublibraryCI + cleanup) (#4594) (@ChrisRackauckas-Claude)
• Forward unknown bounds metadata to NonlinearProblem/NonlinearLeastSquaresProblem (#4595) (@ChrisRackauckas-Claude)
• build: bump MTKBase patch version (#4596) (@AayushSabharwal)
• ci: remove CompatHelper / clean dependabot (#4597) (@ChrisRackauckas-Claude)
• ci: add standard centralized workflows (auto-format, dependabot-automerge, docs-preview-cleanup) (#4599) (@ChrisRackauckas-Claude)
• Drop now-invalid allow-reresolve input from downgrade workflow(s) (#4600) (@ChrisRackauckas-Claude)
• Canonical CI cleanup: TagBot thin-caller + downgrade-caller cleanup (#4602) (@ChrisRackauckas-Claude)
• build(deps): bump codecov/codecov-action from 6 to 7 (#4604) (@dependabot[bot])
• Fix HashedRandom guess in SCCNonlinearProblem (stable_eachindex MethodError) (#4606) (@baggepinnen)
• ODENLStepData: forward outer ODEFunction's flag to inner nlprob (#4609) (@singhharsh1708)
• Canonical CI: grouped-tests.yml + root test/test_groups.toml (#4610) (@ChrisRackauckas-Claude)
• Fix TypeError from nothing-holes in MTKParameters substitution (#4607) (#4617) (@baggepinnen)
• test: accept both valid tearing arrangements in reordered_matrix check (#4620) (@ChrisRackauckas-Claude)
• Memoize _has_delays traversal and add non-DDE fast path (#4621) (@KristofferC)
• cache expression checks in check_operator_variables (#4622) (@KristofferC)
• ci: avoid julia-actions/cache in tests (#4624) (@AayushSabharwal)
• Explicitly capture problem parameters in the tests (#4625) (@JamesWrigley)
• ci: several CI fixes (#4626) (@AayushSabharwal)
• feat: add discover_maybe_zeros (#4628) (@AayushSabharwal)
• [AI] add static indexing for discrete/constants/nonnumeric (#4632) (@SebastianM-C)
• fix: some fixes to FMIExt (#4633) (@AayushSabharwal)
• test: several CI fixes (#4634) (@AayushSabharwal)
• refactor: positive priority variables are no longer "sticky" in eliminate_perfect_aliases! (#4635) (@AayushSabharwal)
• refactor: avoid repeatedly instantiating FMUs during initialization (#4637) (@AayushSabharwal)
• build: bump MTKBase minor, MTK minor, MTKBase compat (#4638) (@AayushSabharwal)
• build: avoid skipping over MTKBase version (#4639) (@AayushSabharwal)
• refactor: rerun eliminate_perfect_aliases! after alias_elimination! (#4640) (@AayushSabharwal)
• build: bump MTKBase minor, MTK minor, MTKBase compat (#4643) (@AayushSabharwal)
• fix: handle indexed non-tunable array params in CopyParamsByTemplate (#4645) (@AayushSabharwal)
• test_groups: route FMI + Initialization to GitHub-hosted runners (fix OOM kills on pre) (#4646) (@ChrisRackauckas-Claude)
• Run Runic on master to fix the Runic Format Check (#4647) (@ChrisRackauckas-Claude)
• Fix QA undefined export + SCCNonlinearProblem ambiguity, update map_variables_to_equations test (#4648) (@ChrisRackauckas-Claude)
• Support Symbol inputs for bif_par and plot_var in BifurcationProblem (#4649) (@singhharsh1708)
• build: bump MTKBase, MTK patch versions (#4651) (@AayushSabharwal)
• feat: add ExpandDerivativeDict (#4652) (@AayushSabharwal)
• build: bump MTKBase minor, MTK patch versions (#4653) (@AayushSabharwal)
• build(deps): bump actions/checkout from 6 to 7 (#4654) (@dependabot[bot])
• Bump SCCNonlinearSolve compat floor to 1.13 to fix downgrade precompile (#4657) (@ChrisRackauckas-Claude)
• Release 1 subpackage(s) (#4660) (@ChrisRackauckas)
• build: bump MTKBase patch version (#4663) (@AayushSabharwal)

Closed issues:

• Symbol input not supported in BifurcationKit Extensions (#4250)
• Add bounds generation to NonlinearProblems (#4308)
• Parallel Ensemble Simulations not working (#4566)
• ODENLStepData: set analytic jac on inner nlprob when ODEProblem(jac=true, nlstep=true) (#4570)
• Error when not each parameter of a vector is used (#4585)
• regression: no method matching stable_eachindex(::Vector{Int64}) (#4603)
• TypeError (promote_symtype on Union{Nothing,Real}) in MTKParameters when initialization is fully determined (#4607)
• structural_simplify: "The equations have at least one cycle" (topsort_equations) when chaining rotation-matrix orientation states (#4608)
• optimize (code-optimization rules) not applied to initialization-problem codegen (#4611)
• maybe_zeros/state_priorities keys built via root-system getproperty silently never match after flatten (root name prefix) (#4613)
• GlobalScope array parameter bound whole in one subsystem + used scalarized in a sibling leaks the DEF placeholder into parameter initialization (#4615)
• Metadata defaults on GlobalScope parameters are namespaced during discovery (inner₊gdef ... is not an unknown) (#4616)
• Tearing test order-sensitivity: tearing.jl:111 fails with SymbolicUtils master (hashing change in SU#963); will surface with next SU release (#4619)
• Array-valued unknown with missing initial condition errors during problem construction (#4627)
• ArraySymbolic constant parameters bound to unknowns lead to conversion error in initialization (#4641)