v10.31.1

ModelingToolkit v10.31.1

Diff since v10.31.0

Merged pull requests:

• build(deps): bump actions/checkout from 5 to 6 (#4043) (@dependabot[bot])
• docs: fix incorrect claim about NonlinearSystem in initialization tutorial (#4046) (@ChrisRackauckas-Claude)
• fix: avoid false positives in consistency check (#4047) (@AayushSabharwal)

Closed issues:

• No method matching getmetadata (#4019)

v10.31.0

ModelingToolkit v10.31.0

Diff since v10.30.0

Merged pull requests:

• refactor: update to SymbolicUtils@4 and Symbolics@7 (#3953) (@AayushSabharwal)
• Automatic inference of discrete parameters in events (#3991) (@TorkelE)
• Improve performance with sparse Jacobians (#4037) (@hersle)
• fix: fix prohibitively narrow type annotations in SCCNonlinearProblem (#4038) (@AayushSabharwal)
• Simple bypass to allow APs to be unitless with unitful connections (#4040) (@cmhyett)
• fix: minor fixes for clock stuff (#4041) (@AayushSabharwal)

Closed issues:

• erroneous cycles started appearing in simple systems (#3842)

v10.30.0

ModelingToolkit v10.30.0

Diff since v10.29.0

Merged pull requests:

• Add tune_parameters for dynamic optimization (#4017) (@SebastianM-C)
• build(deps): bump actions/checkout from 4 to 6 (#4032) (@dependabot[bot])
• increase flexibility in disturbance-argument codegen (#4033) (@baggepinnen)
• Fix test bug for hybrid jump tests (#4034) (@isaacsas)
• build: bump minor version (#4035) (@AayushSabharwal)

Closed issues:

• JuMP/InfiniteOpt dynamic optimization interface issues with parameter estimation (#3939)

v10.29.0

ModelingToolkit v10.29.0

Diff since v10.28.0

Merged pull requests:

• fix: support GPUs again (#4018) (@AayushSabharwal)
• Add backticks to close example code blocks (#4022) (@abhro)
• Dedent docstring contents (#4023) (@abhro)
• build: bump minor version (#4026) (@AayushSabharwal)

v10.28.0

ModelingToolkit v10.28.0

Diff since v10.27.0

Merged pull requests:

• feat: add SemilinearODEFunction and SemilinearODEProblem (#3739) (@AayushSabharwal)
• feat: add discrete_inputs (#4010) (@AayushSabharwal)
• Update Project.toml (#4021) (@AayushSabharwal)

Closed issues:

• Why does remake ignore my u0? (#3661)

v10.27.0

ModelingToolkit v10.27.0

Diff since v10.26.1

Merged pull requests:

• fix: fix minor bug in generate_initializesystem (#3931) (@AayushSabharwal)
• gui_metadata fix (#3984) (@bradcarman)
• Fix noise kwarg propagation for SDEProblem(f::SDESystem) (#3985) (@ChrisRackauckas-Claude)
• Update README (#3987) (@TorkelE)
• Prevents erroneous creation of discrete events (vector of conditions) (#3992) (@TorkelE)
• Fix spell check error (#3993) (@TorkelE)
• fix: fix incorrect incidence after tearing some differential equations (#3994) (@AayushSabharwal)
• add test for passing params as structural params (#3995) (@hexaeder)
• fix: fix generated getindex and length for MTKParameters (#3997) (@AayushSabharwal)
• Fix deprecated ODEProblem API calls in documentation (#4000) (@ChrisRackauckas-Claude)
• feat: support zero-arg operators (#4001) (@AayushSabharwal)
• fix: fix array discrete parameters (#4002) (@AayushSabharwal)
• test: make optimization sparse hessian test independent of variable order (#4003) (@AayushSabharwal)
• refactor: modularize tearing (#4004) (@AayushSabharwal)
• Backport #3733 (update to DI@0.7) to MTK@9 (#4011) (@devmotion)
• Fix IONotFoundError for disturbance inputs (#4014) (@baggepinnen)
• build: bump minor version (#4016) (@AayushSabharwal)

Closed issues:

• MTK allows you to create faulty events without throwing an error. (#2612)
• noise kwarg for SDEProblem(f::SDESystem) (#3664)
• Support for Inputs (#3823)
• using subset_tunables leads to bounds error with ForwardDiff for a DAE (#3925)
• Different solutions for seeded SDEProblems from ModelingToolkit and StochasticDiffEq (#3971)
• Terminate simulation on event (#3981)
• get_component_type errors on compiled systems (#3983)
• Cannot update vector parameters with (#3990)
• Deprecated calling of ODEProblem in the getting-started "Copy-Pastable Simplified Example" (#3996)

v9.84.0

ModelingToolkit v9.84.0

Diff since v9.83.0

This release has been identified as a backport.
Automated changelogs for backports tend to be wildly incorrect.
Therefore, the list of issues and pull requests is hidden.

v10.26.1

ModelingToolkit v10.26.1

Diff since v10.26.0

Merged pull requests:

• CompatHelper: bump compat for Optimization to 5 for package docs, (keep existing compat) (#3966) (@github-actions[bot])
• Handle split in linearize_symbolic (#3968) (@baggepinnen)
• refactor: remove dead code calling explicitfun in SCCNonlinearProblem (#3980) (@AayushSabharwal)
• build: bump patch version (#3982) (@AayushSabharwal)

Closed issues:

• ModelingToolkit can't find a variable its knows as an unkown (#3964)

v10.26.0

ModelingToolkit v10.26.0

Diff since v10.25.0

Merged pull requests:

• fix: fix ODEProblem construction during precompilation with eval_expression = true (#3957) (@AayushSabharwal)
• fix: unwrap inputs/outputs in System constructor (#3960) (@vyudu)
• fix: retain inputs when compose (#3961) (@vyudu)
• Simply fractional_to_ordinary.jl tests with using OrdinaryDiffEq radau5 (#3963) (@ChrisRackauckas)
• build: bump minor version (#3967) (@AayushSabharwal)

Closed issues:

• inputs lost when composing systems? (#3943)

v10.25.0

ModelingToolkit v10.25.0

Diff since v10.24.0

Merged pull requests:

• Update FAQ.md: add link to Basic Example on Optimization (#3955) (@bgctw)
• Backport #3843 (support of ForwardDiff@1) to MTK@9 (#3958) (@devmotion)
• Add DataStructures v0.17-v0.19 compatibility with version branching (#3959) (@ChrisRackauckas-Claude)

Closed issues:

• Cannot install latest ModelingToolkit release (#3951)