Let's Encrypt Launches General Availability of "IP Address Certificates" and "Short-lived (approx. 6 days/160 hours) Certificates"! What's Changing?
On January 15, 2026, Let's Encrypt will launch general availability for IP address certificates and short-term (160-hour / approx. 6+ days) certificates. We provide an easy-to-understand explanation of the mechanisms, use cases, and points to note.