This file documents the major additions and syntax changes between releases. 1.4 IPv6 support in check_ping, check_by_ssh, check_http, check_ldap, check_smtp, check_tcp Internationalisation support Performance data added to most plugins check_disk now using GNU coreutils code New plugins - check_dhcp, check_icmp contrib/check_citrix has been replaced by contrib/check_ica* (requires packet_utils.pm in libexec) check_http --min changed to --pagesize, added max so min:max in check check_vsz and check_rss deprecated - functionality moved into check_procs check_swap % thresholds changed to measure amount free, instead of amount used check_disk syntax changes for -p, -m/-M, defaults to MB instead of kB check_procs -C expects no path for the command name