Questions about Renewing before TLS-ALPN-01 Revocations

[jillian]

@SSLisKillingMe

For complete noobs like me, it would be helpful for the method of how to check if this is your certficiate/where to find if this if is true for you? I've looked at a few things and still not sure...

If you received an e-mail, then your account successfully issued a certificate in the last 90-days with the TLS-ALPN-01 challenge. All certificates issued in the last 90-days validated with the TLS-ALPN-01 are affected and will be revoked.You should renew the certificates for the account that was listed in the e-mail notification.