Roundcube is one of the well known OpenSource solutions for accessing Mails via webinterface. Unfortunately the package in wheezy is ~2 years old.
In Debian unstable the package was updated, but #714727 is blocking the migration to jessie.
In the meanwhile I backported the package to wheezy. For everybody still using the sqlite (v2) backend, see here. There is no automatic migration from sqlite to sqlite3 backend.
For everybody using the package roundcube-plugins-extra, I created an updated package for roundcube 0.9 and submitted my changes to the Debian Roundcube Maintainers.
If you want to give it a try, you could install the packages from our wheezy-backports repository:
# wget "http://ftp.cyconet.org/debian/sources.list.d/wheezy-backports-cyconet.list" \
-O /etc/apt/sources.list.d/wheezy-backports-cyconet.list
# aptitude update
# aptitude -t wheezy-backports install roundcube-mysql roundcube-plugins roundcube-plugins-extra
For adding our archive key, you can just install the package "debian-cyconet-archive-keyring"