This change is now live in staging.
Certificates are being issued from issuers with common names:
(STAGING) Pseudo Plum E5
(STAGING) False Fennel E6
(STAGING) Counterfeit Cashew R10
(STAGING) Wannabe Watercress R11
Please use the next month to test implementations in staging before the new intermediates are deployed to production on June 6th. If you have any issues, concerns, or questions, please ask on this forum.