What are the steps to update kes certificate?

Hi there can anyone kindly share the steps to update the KES certificate on the Cardano node?
I already have a cardano node that is running but the kes certificate is about to expire and I need help to identify the steps to change the newer certificate with the older one.

I follow this guide for example:

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did you had a change to look into Operate a Stake Pool | Cardano Developer Portal? Any feedback would be nice, also if you feel something is not covered.

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Thanks for sharing this I’ll follow the steps given in doc.