v9.51.0

ModelingToolkit v9.51.0

Diff since v9.50.0

Merged pull requests:

• CompatHelper: bump compat for OptimizationOptimJL to 0.4 for package docs, (keep existing compat) (#3066) (@github-actions[bot])
• CompatHelper: bump compat for Optimization to 4 for package docs, (keep existing compat) (#3067) (@github-actions[bot])
• fix: detect observed variables and dependent parameters dependent on discrete parameters (#3106) (@AayushSabharwal)
• feat: support multiple extend statements in MTKModel (#3173) (@ven-k)
• Support ODEs as equations in JumpSystem (#3181) (@isaacsas)
• fix: fix discrete callback condition with array variable (#3190) (@AayushSabharwal)
• feat: cache start system and solver in HomotopyContinuation interface (#3192) (@AayushSabharwal)
• Update stochastic_diffeq.md - fix Brownian coefficient (#3196) (@alhirzel)
• Fix documentation paragraph (#3198) (@hersle)
• Add docstring and oop array construction method for build_explicit_observed_function (#3200) (@BenChung)
• feat: support directly generating observed functions for tuples (#3202) (@AayushSabharwal)
• fix: fix getproperty syntax on structural_simplify(complete(sys)) (#3203) (@AayushSabharwal)
• fix: handle observed in remake_initializeprob (#3207) (@AayushSabharwal)
• Get rid of floating reference to drop_expr in tests (#3208) (@BenChung)
• feat: add support for bounds of array variables (#3209) (@AayushSabharwal)
• fix: enable using MTKParameters with generate_control_function (#3210) (@AayushSabharwal)

Closed issues:

• v9.15.0: When multiple @extend, only the last one takes effect (#2758)
• Array parameters and callbacks (#3154)
• Plotting no longer works for MTK JumpSystems over ODEProblems (#3188)
• Bug in remake_initializeprob on the current master (#3205)