Do I need to create a new CSR to renew my certificate?

We recommend that you generate a new CSR to renew your certificate; however, if generating a new CSR proves to be challenging, you can use the original CSR and it will work. The drawback of using the original CSR is that it will be the exact same private key, so it’s a little less secure.

Related posts:

How can I renew my SSL certificate? I purchased a renewal certificate, but my website still displays the old certificate. What should I do? How do I generate a Code Signing certificate? Do I need a CSR? How do I download my code signing certificate?