v6.4.1

ModelingToolkit v6.4.1

Diff since v6.4.0

Closed issues:

• Incorrect error msg (#1198)

Merged pull requests:

• Don't reduce inputs (#1208) (@YingboMa)

v6.4.0

ModelingToolkit v6.4.0

Diff since v6.3.1

Merged pull requests:

• Optimization and support DiscreteUpdate operator (#1205) (@YingboMa)

v6.3.1

ModelingToolkit v6.3.1

Diff since v6.3.0

Closed issues:

• Unitful/Units in Systems for model validation (#1031)
• Documentation of the function ODESystem (#1200)

Merged pull requests:

• add required name for PDESystem (#1201) (@ChrisRackauckas)

v6.3.0

ModelingToolkit v6.3.0

Diff since v6.2.2

Closed issues:

• connect different types of @connectors (#1168)
• 'Showing' ODESystem errors, if subsystem has array variable (#1192)

Merged pull requests:

• Linearizing delayed equation systems (#1151) (@sharanry)
• Validation of Unitful equations (#1156) (@lamorton)

v6.2.2

ModelingToolkit v6.2.2

Diff since v6.2.1

Closed issues:

• simplify(..., expand=true) errors (#1190)

Merged pull requests:

• Support preface in more codegen functions (#1191) (@YingboMa)

v6.2.1

ModelingToolkit v6.2.1

Diff since v6.2.0

Merged pull requests:

• Fix preface name collision (#1189) (@YingboMa)

v6.2.0

ModelingToolkit v6.2.0

Diff since v6.1.0

Closed issues:

• Get array variables from a system (#1146)
• Bug: Displaying a Hierarchical Model with vector parameters in the submodel (#1167)
• DiffEqUncertainty.jl (#1177)

Merged pull requests:

• mv ReactionSystems to Catalyst and fix dependencies for JumpSystems (#1187) (@isaacsas)

v6.1.0

ModelingToolkit v6.1.0

Diff since v6.0.0

Closed issues:

• Nonlinear problems does not seem to follow the same interface as ODESystems (#1074)
• Abstract time dependent/independent system types (#1082)
• Summing a vector errors (#1165)
• Bounds checking partially not turned off in generated function bodies (#1174)
• @named not working for compose (#1175)

Merged pull requests:

• Update docs to use t as a variable rather than parameter (#1144) (@lamorton)
• fix bounds check for build_torn_function (#1176) (@wsphillips)
• fix PDESystem REPL (#1181) (@KirillZubov)
• Update docs on @nAmed (#1182) (@YingboMa)
• Change namespacing implementation (#1183) (@YingboMa)

v6.0.0

ModelingToolkit v6.0.0

Diff since v5.26.0

Closed issues:

• Move expressions to RHS during lowering (#1037)
• Easy simplification doesn't happen (#1148)
• @connector is not documentable (#1155)
• modelingtoolkitize does not match form for Tuple and NamedTuple parameters (#1158)
• Trouble registering a closure (#1173)

Merged pull requests:

• New abstract time dependent/independent types & independent_variables method (#1091) (@lamorton)
• Use linear_expand and add simplify keyword argument (#1149) (@YingboMa)
• move connection_type to ReactionSystems from Reactions (#1153) (@isaacsas)
• More robust array symbolic handling (#1157) (@YingboMa)
• fix modelingtoolkitize for tuple and namedtuple parameters (#1162) (@ChrisRackauckas)
• automatically put nonlinear systems in canonical form (#1163) (@ChrisRackauckas)

v5.26.0

ModelingToolkit v5.26.0

Diff since v5.25.1

Closed issues:

• SDESystem(sys::ODESystem, noise_eqs) dispatch (#1098)
• OptimizationProblem example doesn't work (#1131)
• Broken link in "Composing Ordinary Differential Equations" tutorial (#1145)

Merged pull requests:

• Allow indicating variables as input/output (#1132) (@sharanry)
• Update acausal_components.md (#1136) (@anandijain)
• shorthand ode->sde (#1141) (@anandijain)
• switch MassActionJumps to use parameter vectors (#1143) (@isaacsas)
• Use Optim (#1147) (@lamorton)