ModelingToolkit v8.11.1 Diff since v8.11.0 Closed issues: Spring-mass example broken (#1571) Merged pull requests: Rudimentary model balancing check (#1568) (@YingboMa) Use Connection from Symbolics (#1569) (@YingboMa) Fix spring_mass tutorial (#1573) (@YingboMa) Define hash for SymbolicContinuousCallback (#1574) (@YingboMa)