https://docs.digicert.com/en/whats-new/change-log/certcentral-change-log.html#digicert-ending-support-for-http-1-0-connections-for-ocsp-and-crl-certificate-status-verification-checks-619426
On rather short notice, they switch off HTTP/1.0 in their OCSP responder. That means our implementation of stapling in mod_ssl will no longer work, I assume. - Stefan
