ModelingToolkit v8.66.0 Diff since v8.65.0 Closed issues: typos (#2201) Namespacing in DDEs doesn't handle delays correctly (#2232) Merged pull requests: Evaluate metadata expr in @mtkmodel (#2242) (@ven-k) fix typos (#2243) (@spaette) Add support for parameters, equations... for @connectors (#2246) (@ven-k) Fix hierarchical modeling with DDEs (#2247) (@ChrisRackauckas) Fix systems keyword argument handling in System (#2249) (@YingboMa)