Release ModelingToolkitBase 1.73.0

[ChrisRackauckas]

Bumps ModelingToolkitBase 1.72.0 -> 1.73.0 (minor).

Source files changed since 1.72.0:

• src/ModelingToolkitBase.jl
• src/problems/docs.jl
• src/problems/nonlinearproblem.jl
• src/problems/odeproblem.jl
• src/problems/optimizationproblem.jl
• src/systems/abstractsystem.jl
• src/systems/codegen.jl
• src/systems/problem_utils.jl
• src/systems/system.jl
• src/utils.jl

Commits:

• Document the PDE solution interface shared by discretizers (Document the PDE solution interface shared by discretizers #5149)
• Point the docs ModelingToolkit source at the repository root (Point the docs ModelingToolkit source at the repository root #5152)
• Unify array-equation support behind a capability trait; fold in Build ODEProblem from array differential equations with complete only #5101 ODE support and MultiObjectiveOptimizationFunction (Unify array-equation support behind a capability trait; fold in #5101 ODE support and MultiObjectiveOptimizationFunction #5148)
• Raise SymbolicIndexingInterface compat lower bound to 0.3.47 (Raise SymbolicIndexingInterface compat lower bound to 0.3.47 #5153)
• Compare complete and mtkcompile array-unknown problems through symbolic indices (Compare complete/mtkcompile array-unknown problems through symbolic indices #5154)

adds calculate_multiobjective_hessian,calculate_multiobjective_jacobian,costs,generate_multiobjective_cost

Version bump only; no code changes in this PR.

🤖 Generated with Claude Code (model: claude-opus-5[1m])

https://claude.ai/code/session_014FEzNTLFutCmTEAZ3zBg5R

[github-actions]

Benchmark Results (Julia vlts)

Time benchmarks

	master	79ae364...	master / 79ae364...
ODEProblem	5.66 ± 0.17 ms	6.34 ± 0.4 ms	0.892 ± 0.063
init	0.112 ± 0.034 ms	0.118 ± 0.036 ms	0.945 ± 0.4
large_parameter_init/ODEProblem	16.9 ± 1.1 ms	19.7 ± 1.9 ms	0.858 ± 0.1
large_parameter_init/init	0.103 ± 0.027 ms	0.108 ± 0.036 ms	0.957 ± 0.41
mtkcompile	9.92 ± 0.48 ms	11.1 ± 0.95 ms	0.897 ± 0.089
sparse_analytical_jacobian/ODEProblem	21 ± 1.3 ms	25.4 ± 2.2 ms	0.827 ± 0.086
sparse_analytical_jacobian/f_iip	0.06 ± 0.01 μs	0.07 ± 0.01 μs	0.857 ± 0.19
sparse_analytical_jacobian/f_oop	0.339 ± 0.0064 ms	0.348 ± 0.018 ms	0.974 ± 0.053
time_to_load	7.23 ± 0.25 s	8.19 ± 0.49 s	0.883 ± 0.061

Memory benchmarks

	master	79ae364...	master / 79ae364...
ODEProblem	0.0375 M allocs: 1.93 MB	0.0375 M allocs: 1.93 MB	1
init	0.5 k allocs: 0.0843 MB	0.5 k allocs: 0.0843 MB	1
large_parameter_init/ODEProblem	0.161 M allocs: 6.05 MB	0.161 M allocs: 6.05 MB	1
large_parameter_init/init	0.632 k allocs: 0.178 MB	0.632 k allocs: 0.178 MB	1
mtkcompile	0.0594 M allocs: 3.38 MB	0.0594 M allocs: 3.36 MB	1
sparse_analytical_jacobian/ODEProblem	0.118 M allocs: 5.74 MB	0.118 M allocs: 5.74 MB	1
sparse_analytical_jacobian/f_iip	0 allocs: 0 B	0 allocs: 0 B
sparse_analytical_jacobian/f_oop	0.634 k allocs: 19.6 kB	0.634 k allocs: 19.6 kB	1
time_to_load	0.153 k allocs: 14.6 kB	0.153 k allocs: 14.6 kB	1

[github-actions]

Benchmark Results (Julia v1)

Time benchmarks

	master	79ae364...	master / 79ae364...
ODEProblem	4 ± 0.23 ms	4.12 ± 0.23 ms	0.97 ± 0.078
init	0.0485 ± 0.02 ms	0.0495 ± 0.014 ms	0.981 ± 0.49
large_parameter_init/ODEProblem	11 ± 1.8 ms	11.9 ± 1.8 ms	0.92 ± 0.21
large_parameter_init/init	0.051 ± 0.0073 ms	0.0559 ± 0.035 ms	0.914 ± 0.59
mtkcompile	6.75 ± 0.78 ms	7.24 ± 0.89 ms	0.932 ± 0.16
sparse_analytical_jacobian/ODEProblem	14.7 ± 1.9 ms	15.8 ± 2.5 ms	0.926 ± 0.19
sparse_analytical_jacobian/f_iip	0.06 ± 0 μs	0.05 ± 0 μs	1.2 ± 0
sparse_analytical_jacobian/f_oop	0.0844 ± 0.012 ms	0.0849 ± 0.013 ms	0.994 ± 0.21
time_to_load	3.95 ± 0.038 s	3.94 ± 0.05 s	1 ± 0.016

Memory benchmarks

	master	79ae364...	master / 79ae364...
ODEProblem	0.0377 M allocs: 1.71 MB	0.0377 M allocs: 1.7 MB	1.01
init	0.455 k allocs: 0.0589 MB	0.455 k allocs: 0.0589 MB	1
large_parameter_init/ODEProblem	0.157 M allocs: 5.39 MB	0.157 M allocs: 5.39 MB	1
large_parameter_init/init	0.737 k allocs: 0.164 MB	0.737 k allocs: 0.164 MB	1
mtkcompile	0.0557 M allocs: 2.62 MB	0.0557 M allocs: 2.62 MB	1
sparse_analytical_jacobian/ODEProblem	0.118 M allocs: 4.8 MB	0.118 M allocs: 4.8 MB	1
sparse_analytical_jacobian/f_iip	0 allocs: 0 B	0 allocs: 0 B
sparse_analytical_jacobian/f_oop	0.848 k allocs: 27 kB	0.848 k allocs: 27 kB	1
time_to_load	0.202 k allocs: 12.2 kB	0.202 k allocs: 12.2 kB	1