RC4 depreciation in 2026

According to Microsoft document related to CVE-2026-20833 in July by default kerberos tickets by default will be created with AES tokens.

double dots name prevent synchronization group to Azure

case: on-premise user or group with two consecutive dots in name like "Group..1"; AADC synchronization rule with simply flow mailnickname (direct) alias

error: wrong mailnickname (but mailnickname is empty in the source directory)