NEW: [Bootstrapper] add has_proxy_only build type, provisions a server to act as a cp-proxy relay. See Panel proxy.md for further information. FIXED: [Backups] database backups may never terminate when the number of snapshots exceeds the number of preserved backups. [Bootstrapper] Node, PHP tarballs accounted under admin1. [Bootstrapper] sofware/passenger role from an interactive terminal in which Rake is installed suspends tty to background. [CentOS] version detection incorrect on 8+ paltforms resulting in invalid comparisons. [DNS] moving providers no longer automatically provisions DNS on the new provider. [Ghost] mail cannot deliver due to firewall restrictions on "direct" mail transport. CHANGED: [Auth] redirection DNS check now optional via [auth] => server_validity. Useful in cp-proxy installs with internal hostnames. [Auth] log attempts and Anvil blocks now logged to /var/log/secure. [Bootstrapper] always use local connection in panel [ClamAV] FreshClam usage dependent upon server mode. [Digitalocean] honor 30s minimum DNS TTL. [DNS] record names may be optionally split on 255 octet boundaries now. [File Manager] cleanup incomplete extractions. [mail] disable mailbox management for third-party mail providers.