About renewal and challenge

Continuing the discussion from How renew works with dns-01 challenge?:

I read this post, which @tialaramex states:

the TXT records only matter during the process of accepting and then passing the challenge

And then:

Passing a new challenge will require new (different) TXT records to be provisioned.

My question is:

Must I perform a challenge eache time that I renew the certificates?

Thanks in advance

Currently the authorization, with your account key, is valid for 90 days, and since you will typically renew after about 60 days then you won’t (currently) need to perform a challenge on your first renewal.

That validation period of 90 days may well become shorter in the future though.

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