v8.7.0

ModelingToolkit v8.7.0

Diff since v8.6.0

Closed issues:

• parameter tuples having mixed numeric values are converted to the same type (#1475)
• jac and sparse are not implemented for DAEProblem (#1482)
• Solving structurally simplified system fails, but only when jac=true, sparse=true (#1501)

Merged pull requests:

• Better error msg when independent variable detection fails (#1508) (@YingboMa)
• Added functionality for symbolically computing DAE jacobians (#1510) (@Abhishek-1Bhatt)
• remove format character (#1513) (@simeonschaub)
• Update reference tests (#1514) (@ChrisRackauckas)
• Fixed Jacobian for DAEs and added a test for it (#1519) (@Abhishek-1Bhatt)
• Fix invalidate_cache (#1521) (@YingboMa)
• Redo stream connectors (#1525) (@YingboMa)