v9.49.0

ModelingToolkit v9.49.0

Diff since v9.48.0

Merged pull requests:

• Don't check units during initialization (#3119) (@ctessum)
• Improve interactive system browsing and add system description (#3132) (@hersle)
• fix: fix getproperty, hasproperty for simplified hierarchical systems (#3149) (@AayushSabharwal)
• feat: support rational functions in HomotopyContinuationProblem (#3151) (@AayushSabharwal)
• fix: fix flattening in complete (#3155) (@AayushSabharwal)
• fix: only evaluate required keys of varmap in process_SciMLProblem (#3156) (@AayushSabharwal)
• feat: add support for IntervalNonlinearProblem (#3157) (@AayushSabharwal)
• fix: fix denominator checking in HomotopyContinuationExt (#3158) (@AayushSabharwal)
• Update Documentation.yml to build docs with LTS (#3164) (@ChrisRackauckas)

Closed issues:

• IntervalNonlinearProblem support in MTK (#2672)
• Strange behaviour for SDEs with continuous callbacks (#2723)
• structural_simplify messes with hasproperty for parameters (#3016)
• Fails to initialize with units (#3086)
• ifelse in equations can produce error for ODEProblem (#3153)
• Documentation is outdated (#3163)