Yesterday, all partners and customers were contacted to exchange the certificate chain (issuing certificate for the EU). The background to this is the stricter algorithms required by the standards. The signature size will change to 4096bit and the algorithm sha256WithEncryption will no longer be used and replaced by SHA256WithRSAandMGF1 / RSASSA-PSS. Parallel accounts have been opened for all partners and customers so that the changeover can take place independently by addressing the new ClaimedID. The conversion must be completed by the end of 2022, as the corresponding Issuing CA 4 will then be switched off.