v9.61.0

ModelingToolkit v9.61.0

Diff since v9.60.0

Merged pull requests:

• fix: @mtkmodel no longer makes @variables callable (#3217) (@AayushSabharwal)
• fix: properly handle rational functions in HomotopyContinuation (#3265) (@AayushSabharwal)
• feat: better inbounds handling and propagation for generated functions (#3277) (@AayushSabharwal)
• feat: add analysis points (#3285) (@AayushSabharwal)
• fix: minor bug fix in PolynomialTransformation (#3293) (@AayushSabharwal)
• Generic mechanism for debugging/logging functions (#3296) (@hersle)
• feat: allow remade initialization systems to be incomplete (#3301) (@AayushSabharwal)
• feat: add support for causal connections of variables (#3304) (@AayushSabharwal)
• DifferentialEquations -> OrdinaryDiffEqDefaults in readme (#3305) (@TorkelE)
• Add better SDESystem error when it hasn't been structural_simplify (#3316) (@vyudu)
• feat: support caching of different types of subexpressions in SCCNonlinearProblem (#3324) (@AayushSabharwal)
• fix: fix initialization of DiscreteProblem(::JumpSystem) (#3329) (@AayushSabharwal)
• test: added test for dae_order_lowering (#3335) (@sivasathyaseeelan)
• Fix dual type promotion in remake with dummy derivatives (#3337) (@hersle)
• fix: respect checkbounds in build_explicit_observed_function (#3339) (@AayushSabharwal)
• fix: only solve parameter initialization for NonlinearSystem (#3345) (@AayushSabharwal)

Closed issues:

• SDESystem's not displayed properly with latexify (#2069)
• Wonky interface for Dicrete/Continious callbacks when using ModelingToolkit (#2303)
• Events not working with automatic solver selection (#2741)
• Latexify display does not work for SDESystems (#2782)
• SDEs with brownian motions requires structural_simplify (#2831)
• Regression: Problem with indexing of JumpProblem (#2838)
• support connections between (causal) variables connect(var1, var2) (#3287)
• HomotopyContinuation extension of MTK breaks creation of ODESystems in PEtab.jl (#3291)
• Cannot remake problems if not providing full u0 and the first version did not require an initialization problem (#3295)
• Parameter initial conditions broken for DiscreteProblems (#3297)
• deepcopy leads to a failure in the initialization (#3307)
• Circular dependencies on Julia 1.10 (#3308)
• Dropped Variable (#3311)
• Some new problems with remake for Catalyst update (#3326)