Updating Ad Final URLs

Hello All,

We are running an initiative to update all our Ad URLs to the secure version i.e starting with https://. From the Adwords Web UI I can find that when I edit the Ad (just convert Final Url to https://), the old Ad is marked as deleted and a new one is created.
I'm just curious to know that when this new ad is created is it still linked to the performance metrics of the original ad?
Does API also works in the similar way? This would mean if I have to update the Ad URL I have to delete the existing Ad and create a new one with the Updated URL. Is this correct?

Regards,
Priya

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