From the announcement: Subscribers will be able to optin to short-lived certificates via a certificate profile mechanism being added to our ACME API. We hope

From the announcement: Subscribers will be able to optin to short-lived certificates via a certificate profile mechanism being added to our ACME API. We hope to make short-lived certificates generally available by the end of 2025. The earliest short-lived certificates we issue may not support IP addresses, but we intend to enable IP address support by the time short-lived certificates reach general availability.