Check if a property value has changed on POCO

I have a POCO that is updated every N seconds. The problem I have is that not all properties may have changed since the last update.

I need to know which properties have changed since the last update so I can log the changes. I could do this by keeping a copy of the POCO from the previous update and performing a comparison each time and then maybe firing an event for each property change.

Does anyone have a better solution that I could use here?

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