v8.71.0

ModelingToolkit v8.71.0

Diff since v8.70.0

Merged pull requests:

• Refactor SDEProblem constructor (#2279) (@ErikQQY)

Closed issues:

• bareiss_zero! is inefficient for sparse arrays. (#2278)

v8.70.0

ModelingToolkit v8.70.0

Diff since v8.69.1

Merged pull requests:

• add module to RuntimeGeneratedFunctions call (#2259) (@xtalax)
• docs 1.0 upgrade (#2267) (@ArnoStrouwen)
• skip ci.yml for doc pr (#2270) (@ArnoStrouwen)
• domain documentation and tests (#2272) (@bradcarman)
• Update readme to use t as a variable rather than parameter (#2273) (@LilithHafner)
• Better tearing diagnostics info (#2274) (@YingboMa)
• CompatHelper: add new compat entry for ModelingToolkitDesigner at version 1 for package docs, (keep existing compat) (#2275) (@github-actions[bot])
• Add u0_constructor kwargs (#2277) (@YingboMa)

Closed issues:

• Exception: UNKNOWN at 0x7ffa447ecf19 (#2271)
• MTK fails to create an ODE problem with SVector as state, even when u0 is given as SVector (#2276)

v8.69.1

ModelingToolkit v8.69.1

Diff since v8.69.0

Merged pull requests:

• Add domain_connect (#2233) (@YingboMa)
• CompatHelper: bump compat for Documenter to 1 for package docs, (keep existing compat) (#2265) (@github-actions[bot])
• Fix analysis point and handle jacobian and tgrad correctly when parameters are split (#2266) (@YingboMa)

v8.69.0

ModelingToolkit v8.69.0

Diff since v8.68.0

Merged pull requests:

• Recompile Invalidations (#2222) (@xtalax)
• Document @mtkmodel and @connector (#2227) (@ven-k)
• Handle inhomogeneous parameters using a Tuple of Vectors (#2231) (@YingboMa)
• Bump actions/checkout from 3 to 4 (#2254) (@dependabot[bot])
• CompatHelper: add new compat entry for PrecompileTools at version 1, (keep existing compat) (#2255) (@github-actions[bot])
• Implement substitute for AbstractSystems (#2257) (@YingboMa)
• Remove @named explanation (#2258) (@YingboMa)

v8.68.0

ModelingToolkit v8.68.0

Diff since v8.67.0

Closed issues:

• Error with @mtkmodel and Unitful units (#2248)

Merged pull requests:

• add default arguments to dummy derivatives (#2253) (@pepijndevos)

v8.67.0

ModelingToolkit v8.67.0

Diff since v8.66.0

Merged pull requests:

• Symbolic defaults for sub-components and base system kwargs + set base sys kwargs as component's kwargs (#2226) (@ven-k)
• docs: fix the dependency graphs example in the docstrings (#2245) (@sathvikbhagavan)

v8.66.0

ModelingToolkit v8.66.0

Diff since v8.65.0

Closed issues:

• typos (#2201)
• Namespacing in DDEs doesn't handle delays correctly (#2232)

Merged pull requests:

• Evaluate metadata expr in @mtkmodel (#2242) (@ven-k)
• fix typos (#2243) (@spaette)
• Add support for parameters, equations... for @connectors (#2246) (@ven-k)
• Fix hierarchical modeling with DDEs (#2247) (@ChrisRackauckas)
• Fix systems keyword argument handling in System (#2249) (@YingboMa)

v8.65.0

ModelingToolkit v8.65.0

Diff since v8.64.0

Closed issues:

• New failure to simplify algebraic equations (#2234)

Merged pull requests:

• changed ParentScope docs to better reflect best usage (#2219) (@hstrey)
• Fix error in error reporting code. (#2223) (@contradict)
• Consistently initialize before computing the linearization (#2236) (@YingboMa)

v8.64.0

ModelingToolkit v8.64.0

Diff since v8.63.0

Closed issues:

• Function Serialization (#2209)

Merged pull requests:

• fix breaking changes to ModelingToolkitDesigner.jl (#2214) (@bradcarman)
• Make introspecting dummy_derivative easier (#2218) (@YingboMa)

v8.63.0

ModelingToolkit v8.63.0

Diff since v8.62.0

Closed issues:

• Improved conversion of variables to symbols (#2205)
• Error with @register_symbolic when running documentation example (#2211)

Merged pull requests:

• Add isconnector to Model type + add all metadata to Model.structure (#2204) (@ven-k)
• Add DDE support in System (#2207) (@YingboMa)
• SDDE support (#2208) (@YingboMa)
• Update the Torque and Mass components wrt to MSL-2.0 (#2212) (@ven-k)