Question
On 28 January 2022 Let's Encrypt will revoke certificates issued in the last 90 days and validated with the TLS-ALPN-01 challenge. Will this affect the Let's Encrypt certificates issued through Plesk?
Answer
As mentioned in Let's Encrypt post, this revocation only affects certificates issued and validated with the TLS-ALPN-01 challenge.
Certificates in Plesk will not be affected since the Let's Encrypt extension is not using the TLS-ALPN-01 challenge.