Backward Compatibility with Version 4.4

Old models will be updated to use the new boundary conditions, but re-solving a model still gives the same results as before. The following changes to the model are made upon opening:

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If an Electric Potential feature is applied to boundaries adjacent to a Plasma Model feature, it is converted to a Metal Contact feature. The settings from the original model are retained. If an Electric Potential feature is applied to boundaries adjacent to a Charge Conservation feature, it remains the same.

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If an Electric Potential feature is applied to a combination of boundaries adjacent to a Plasma Model and Charge Conservation feature, a Metal Contact feature is created for the boundaries adjacent to the Plasma Model feature, and the Electric Potential feature remains on boundaries adjacent to the Charge Conservation feature.

•	Any External Surface Charge Accumulation boundary conditions are replaced by a new Dielectric Contact feature. The settings from the original model are retained. The External Surface Charge Accumulation boundary condition is now obsolete.