Let's Encrypt 正式上线短期证书（约 6 天）和 IP 地址证书
https://letsencrypt.org/2026/01/15/6day-and-ip-general-availability
https://letsencrypt.org/2026/01/15/6day-and-ip-general-availability
Let's Encrypt
6-day and IP Address Certificates are Generally Available
Update: March 11, 2026 If you use Certbot, see Six-Day and IP Address Certificates Available in Certbot for details on requesting these certificates. Short-lived and IP address certificates are now generally available from Let’s Encrypt. These certificates…
