@digilist only certificates containing more than one SAN (domain) and that had a specific timing requirement (authorization reused and 8 hours or more after the initial CAA check. See 2020.02.29 CAA Rechecking Bug for details.) are affected by this. If the serials for your certs are not in https://letsencrypt.org/caaproblem/ then they will not be revoked.
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