v9.26.0

ModelingToolkit v9.26.0

Diff since v9.25.0

Merged pull requests:

• document the fully_determined kwarg to structural_simplify (#2880) (@MasonProtter)
• Detect diagonal noise in SDESystem (#2882) (@MasonProtter)
• Pass down documented kwargs in structural_simplifiy (#2885) (@ChrisRackauckas)
• fix: create specialized isdiag for symbolics in noise matrix (#2886) (@AayushSabharwal)
• feat: allow specifying nothing as default value to skip it (#2887) (@AayushSabharwal)

Closed issues:

• Diagonal noise not detected during lowering of System with @brownian variables (#2490)
• @discrete_events or @continuous_events not working with acausal modeling framework (#2849)
• fix requirement for SDESystems to take Num inputs (#2868)