Software Version 4.0.0

New interface design
Switch to Linux kernel 2.4
Stronger hardened kernel with grsecurity
Stateful firewall
Support of AVM Fritz! Card PCI for ISDN (automatic detection on installation)
Storage of backups on remote servers
Export of statistics data in CSV format
Port number of proxy server adjustable
Automatic detection of MTU size for DSL
Improved consistency checks for IP addresses
Login of default administrator changed to "admin" (only for new installations and resets)
Rare problems with email transfers due to simultaneous writing of configuration files fixed
Maximum possible interval for automatic email transfer increased to 1 day
Calculation of effective proxy rights in a special case corrected
Improved Linux base system security (unzip-5.50, httpd-2.0.47)
Updated Linux base services (bind-9.2.2 +chrootjail, capi4hylafax-01.02.02, curl-7.10.6, cyrus-imapd-2.1.14, cyrus-sasl-2.1.15, dante-1.1.14, dev-3.3.5, e2fsprogs-1.33, fetchmail-6.2.3, super-freeswan-1.99.8, hylafax-4.1. 7, iptables-1.2.8, kernel-2.4.21, libxml++-0.24, libxml-2.5.8, losetup-2.11y, modutils-2.4.25, mount-2.11y, pcre-4.3, php-4. 3.2, postfix-2.0.13, ppp-2.4.1, regexx-0.98, rp-pppoe-3.5, socat-1.3.2.1, squid-2.5.STABLE3, unrar-3.1.3, util-linux-2.11y)