Hi, I'm runnign Debian 6.0 on my iredmail servers and I'd liek to upgrade a load of the packages on them, is this safe to do or should I be following an official iRedmail upgrade path?

Thanks..

--- list of packages it wants to upgrade....

The following packages will be upgraded:
  acpid apache2 apache2-mpm-prefork apache2-utils apache2.2-bin apache2.2-common base-files bind9-host clamav
  clamav-base clamav-daemon clamav-freshclam dbus debian-archive-keyring dpkg fail2ban file gnupg gpgv gzip
  host initscripts isc-dhcp-client isc-dhcp-common libapache2-mod-php5 libapr1 libbind9-60 libc-bin
  libc-dev-bin libc6 libc6-dev libclamav6 libcups2 libdbus-1-3 libdns69 libexpat1 libgnutls26 libgssapi-krb5-2
  libisc62 libisccc60 libisccfg62 libk5crypto3 libkrb5-3 libkrb5support0 libldap-2.4-2 liblwres60 libmagic1
  libmysqlclient16 libnss3-1d libpng12-0 libpq5 libssl0.9.8 libtasn1-3 libtiff4 libxi6 libxml2 linux-base
  linux-image-2.6.32-5-amd64 linux-libc-dev locales mysql-client mysql-client-5.1 mysql-common mysql-server
  mysql-server-5.1 mysql-server-core-5.1 openjdk-6-jre openjdk-6-jre-headless openjdk-6-jre-lib openssh-client
  openssh-server openssl perl perl-base perl-modules php5-cli php5-common php5-gd php5-imap php5-ldap
  php5-mcrypt php5-mysql procps python python-minimal sd-agent ssh sysv-rc sysvinit sysvinit-utils tzdata
  tzdata-java