Add NEWS

YingboMa · YingboMa · commit 1d8f91b26ab1 · 2021-12-22T22:50:58.000-05:00
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+# ModelingToolkit v8 Release Notes
+
+
+### Upgrade guide
+
+- `connect` should not be overloaded by users anymore. `[connect = Flow]`
+  informs MTK that currents ought to sum to zero, and by default, variables are
+  equal in a connection. Please check out [acausal components tutorial](https://mtk.sciml.ai/dev/tutorials/acausal_components/)
+  for examples.
