v11.17.0

ModelingToolkit v11.17.0

Diff since v11.16.0

Merged pull requests:

• feat: automatically combine SCCs in SCCNonlinearProblem (#4361) (@AayushSabharwal)
• test: handle new solvability semantics in tests (#4391) (@AayushSabharwal)
• fix: do not unhack system in get_substitutions (full_equations) (#4395) (@AayushSabharwal)
• build: bump MTKBase minor, MTK minor, MTKBase compat (#4396) (@AayushSabharwal)

Closed issues:

• Trivial nonlinear system not simplifying to zero (#4322)
• UndefVarError in generated code for LinearProblem (#4345)
• mtkcompile removes variables referenced only in other variables' defaults (#4393)

ModelingToolkitBase-v1.24.0

ModelingToolkitBase ModelingToolkitBase-v1.24.0

Diff since ModelingToolkitBase-v1.23.0

Merged pull requests:

• feat: automatically combine SCCs in SCCNonlinearProblem (#4361) (@AayushSabharwal)
• test: handle new solvability semantics in tests (#4391) (@AayushSabharwal)
• fix: do not unhack system in get_substitutions (full_equations) (#4395) (@AayushSabharwal)
• build: bump MTKBase minor, MTK minor, MTKBase compat (#4396) (@AayushSabharwal)

Closed issues:

• Trivial nonlinear system not simplifying to zero (#4322)
• UndefVarError in generated code for LinearProblem (#4345)
• mtkcompile removes variables referenced only in other variables' defaults (#4393)

v11.16.0

ModelingToolkit v11.16.0

Diff since v11.15.0

Merged pull requests:

• feat: [AI] use LinearProblem for linear initialization systems in MTKBase (#4366) (@AayushSabharwal)
• feat: allow adding special diffcache parameters to the system (#4386) (@AayushSabharwal)
• feat: allow using SciMLBase.Clock as SymbolicDiscreteCallback condition (#4388) (@AayushSabharwal)
• build: bump MTKBase, MTK minor, MTKBase compat (#4389) (@AayushSabharwal)

v11.15.0

ModelingToolkit v11.15.0

Diff since v11.14.0

Merged pull requests:

• feat: add AssignmentAffect (#4301) (@AayushSabharwal)
• fix: fix add_observed! (#4362) (@AayushSabharwal)
• fix: fix old IndexCache influencing subsequent complete calls (#4378) (@AayushSabharwal)
• build(deps): bump julia-actions/cache from 2 to 3 (#4380) (@dependabot[bot])
• feat: support initialize_save_discretes in symbolic callbacks (#4382) (@AayushSabharwal)
• test: update tests to account for new tearing algorithm (#4383) (@AayushSabharwal)
• build: bump MTK, MTKBase minor (#4387) (@AayushSabharwal)

Closed issues:

• Syntax for simple assignment events (#4031)
• Kinematic-loop examples fails to simplify properly (#4117)
• Enable AssignmentAffect for simple events (#4239)
• TypeError in varmap_to_vars (#4343)

ModelingToolkitBase-v1.23.0

ModelingToolkitBase ModelingToolkitBase-v1.23.0

Diff since ModelingToolkitBase-v1.22.0

Merged pull requests:

• feat: [AI] use LinearProblem for linear initialization systems in MTKBase (#4366) (@AayushSabharwal)
• feat: allow adding special diffcache parameters to the system (#4386) (@AayushSabharwal)
• feat: allow using SciMLBase.Clock as SymbolicDiscreteCallback condition (#4388) (@AayushSabharwal)
• build: bump MTKBase, MTK minor, MTKBase compat (#4389) (@AayushSabharwal)

ModelingToolkitBase-v1.22.0

ModelingToolkitBase ModelingToolkitBase-v1.22.0

Diff since ModelingToolkitBase-v1.21.0

Merged pull requests:

• feat: add AssignmentAffect (#4301) (@AayushSabharwal)
• fix: fix add_observed! (#4362) (@AayushSabharwal)
• fix: fix old IndexCache influencing subsequent complete calls (#4378) (@AayushSabharwal)
• build(deps): bump julia-actions/cache from 2 to 3 (#4380) (@dependabot[bot])
• feat: support initialize_save_discretes in symbolic callbacks (#4382) (@AayushSabharwal)
• test: update tests to account for new tearing algorithm (#4383) (@AayushSabharwal)
• build: bump MTK, MTKBase minor (#4387) (@AayushSabharwal)

Closed issues:

• Syntax for simple assignment events (#4031)
• Kinematic-loop examples fails to simplify properly (#4117)
• Enable AssignmentAffect for simple events (#4239)
• TypeError in varmap_to_vars (#4343)

v11.14.0

ModelingToolkit v11.14.0

Diff since v11.13.0

Merged pull requests:

• fix: FMI varname parse bug #3934 (#3935) (@EduardoMartinezLopez)
• fix: parent guesses should override child defaults in guesses() (#4359) (@AnasAbdelR)
• feat: [AI] auto-discovery variables/parameters from initial conditions and bindings (#4363) (@AayushSabharwal)
• Enforce pre-scaled MassActionJump rates in Systems with jumps (#4364) (@isaacsas)
• Add Mooncake tangent_type override for MissingGuessValue (#4365) (@ChrisRackauckas-Claude)
• fix: [AI] handle inputs/outputs in purely algebraic systems (#4367) (@AayushSabharwal)
• test: fix tests that relied on stepping behavior (#4369) (@AayushSabharwal)
• feat: add utility for moving variable bindings to initial conditions (#4370) (@AayushSabharwal)
• build: bump MTKBase minor version (#4371) (@AayushSabharwal)
• refactor: use state_priorities stored in new TearingState (#4372) (@AayushSabharwal)
• test: disable SDDE tests due to failing precompilation (#4373) (@AayushSabharwal)
• fix: fix loop openings of causal variable analysis points (#4374) (@AayushSabharwal)
• feat: add get_w for multibody models (#4375) (@AayushSabharwal)
• ci: steps to debug long CI times (#4376) (@AayushSabharwal)
• build: bump MTKBase minor, MTK minor (#4379) (@AayushSabharwal)

Closed issues:

• Cannot create MTK model from FMU with multi-dimensional variables with derivatives (#3934)
• mtkcompile does not turn inputs to parameters (#4352)
• Initial is ignored for discrete variable (#4356)

ModelingToolkitBase-v1.21.0

ModelingToolkitBase ModelingToolkitBase-v1.21.0

Diff since ModelingToolkitBase-v1.20.0

Merged pull requests:

• fix: FMI varname parse bug #3934 (#3935) (@EduardoMartinezLopez)
• feat: [AI] auto-discovery variables/parameters from initial conditions and bindings (#4363) (@AayushSabharwal)
• fix: [AI] handle inputs/outputs in purely algebraic systems (#4367) (@AayushSabharwal)
• refactor: use state_priorities stored in new TearingState (#4372) (@AayushSabharwal)
• test: disable SDDE tests due to failing precompilation (#4373) (@AayushSabharwal)
• fix: fix loop openings of causal variable analysis points (#4374) (@AayushSabharwal)
• feat: add get_w for multibody models (#4375) (@AayushSabharwal)
• ci: steps to debug long CI times (#4376) (@AayushSabharwal)
• build: bump MTKBase minor, MTK minor (#4379) (@AayushSabharwal)

Closed issues:

• Cannot create MTK model from FMU with multi-dimensional variables with derivatives (#3934)
• mtkcompile does not turn inputs to parameters (#4352)

ModelingToolkitBase-v1.20.0

ModelingToolkitBase ModelingToolkitBase-v1.20.0

Diff since ModelingToolkitBase-v1.19.0

Merged pull requests:

• fix: parent guesses should override child defaults in guesses() (#4359) (@AnasAbdelR)
• test: fix tests that relied on stepping behavior (#4369) (@AayushSabharwal)
• feat: add utility for moving variable bindings to initial conditions (#4370) (@AayushSabharwal)
• build: bump MTKBase minor version (#4371) (@AayushSabharwal)

Closed issues:

• Initial is ignored for discrete variable (#4356)

ModelingToolkitBase-v1.19.0

ModelingToolkitBase ModelingToolkitBase-v1.19.0

Diff since ModelingToolkitBase-v1.18.0