FIXED: [Bootstrapper] force major update policy on resume before 3.2.0 is released. [Email] "Mail" appended onto destination mailbox on rename. [Lararia] disable Laravel's builtin exception handler for ApisCP. A slew of deprecation errors are introduced by the 7.3 to 7.4 migration fully rectified in 3.2.0. [PHP] HOTFIX: CentOS 8/systemd sendmail compatibility. RestrictAddressFamilies requires AF_NETLINK support. Setting PrivateDevices or RestrictAddressFamilies, in addition to other directives, irrevocably enables NoNewPrivileges=yes, which prevents postdrop setgid helper from temporarily granting the invoking process "postdrop" membership. This requires either opening /var/spool/postfix/maildrop to world or using ACLs to grant apache user write/execute permissions to directory. Pursuing this route blocks future developments in multi-user pools as well as running pool same-user (cPanel compatibility mode), leaving supplementary group addition the only appropriate route. Long-term fix is to assign client certificates for each PHP-FPM user.