How to know which ACME version I am using to obtain TLS/SSL certificate?

I got the below email and I have properly updated certbot but I just want to verify that I am obtaining the certificates via ACMEv2.

According to our records, the software client you’re using to get Let’s
Encrypt TLS/SSL certificates issued or renewed at least one HTTPS certificate
in the past two weeks using the ACMEv1 protocol.

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Hi @jaywad

check your config files

/etc/letsencrypt/renewal

and your log to see, if there is an acme-v01 used.

Config files -> update these - v01 -> v02.

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Many thanks @JuergenAuer . I have checked the /var/log/letsencrypt/letsencrypt.log and it has acme-v02.api and no v1.

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