v10.15.0

ModelingToolkit v10.15.0

Diff since v10.14.0

Merged pull requests:

• fix: fix OptimizationFunction generation of exprs (#3844) (@AayushSabharwal)
• Apply JuliaFormatter v2 to fix formatting CI (#3845) (@ChrisRackauckas)
• Apply JuliaFormatter to fix code formatting (#3846) (@ChrisRackauckas)
• Remove outdated Julia version checks from tests (#3847) (@ChrisRackauckas)
• Remove nonlinearsolve as a dep by just using the default nonlinearsolve (#3851) (@ChrisRackauckas)
• Document EvalAt operator (#3852) (@ChrisRackauckas)
• Add downgrade CI workflow with InterfaceI test group (#3854) (@ChrisRackauckas)
• Fix deprecated ODESystem and @mtkbuild usage in documentation examples (#3856) (@ChrisRackauckas)
• Fix CI deprecation warnings (#3858) (@ChrisRackauckas)
• [ci-skip] Revert JuliaFormatter PR #3846 (#3860) (@ChrisRackauckas)
• Add solver kwargs to prob docstrings (#3861) (@ChrisRackauckas)
• Apply JuliaFormatter to fix code formatting (#3862) (@ChrisRackauckas)
• fix: fix incorrect metadata handling in symbolic affect simplification (#3868) (@AayushSabharwal)
• Add nlstep_compile as a debug tool for turning off simplification (#3873) (@ChrisRackauckas)

Closed issues:

• Support for Synchronous Systems (#3826)
• Document EvalAt (#3849)