v9.67.0

ModelingToolkit v9.67.0

Diff since v9.66.0

Merged pull requests:

• Change independent variable of ODE systems (#3437) (@hersle)
• fix: propagate tofloat, use_union to better_varmap_to_vars (#3448) (@vyudu)
• fix: Throw better warning when a guess is missing (#3456) (@vyudu)
• error message threw error message (#3457) (@baggepinnen)
• add toplevel arguments to various getters (#3462) (@TorkelE)
• Reduce TTF@mtkmodel (#3471) (@hexaeder)
• Fix docstring for InitializationProblem (#3474) (@baggepinnen)

Closed issues:

• Type promotion error when differentiating SteadyStateProblem (#3430)
• Jump simulations are Float64 valued (#3446)
• Better error message for missing guesses (#3449)
• Cannot simulate a certain ODESystem (probably one where everything gets simplified away) (#3467)