Just in case users would experience issues with TLS upstream connectivity after July 11, 18:00 UTC since the short notice https://knowledge.digicert.com/alerts/DigiCert-ICA-Replacement might leave some admins with insufficient time to get this sorted.
And there might be another certificate issue (OCSP) looming SECURITY RELEVANT FOR CAs: The curious case of the Dangerous Delegated Responder Cert as it calls for
CAs affected MUST ensure they revoke such certificates within 7 days