dpkg -l | grep claws-mail
ii claws-mail 3.17.2-1 amd64 Fast, lightweight and user-friendly GTK+2 based email client
ii claws-mail-address-keeper:amd64 3.17.2-1 amd64 Address keeper plugin for Claws Mail
ii claws-mail-archiver-plugin:amd64 3.17.2-1 amd64 Archiver plugin for Claws Mail
ii claws-mail-bogofilter:amd64 3.17.2-1 amd64 Bogofilter plugin for Claws Mail
ii claws-mail-dillo-viewer:amd64 3.17.2-1 amd64 HTML viewer plugin for Claws Mail using Dillo
ii claws-mail-doc 3.17.2-1 all User documentation for Claws Mail mailer
ii claws-mail-i18n 3.17.2-1 all Locale data for Claws Mail (i18n support)
ii claws-mail-mailmbox-plugin:amd64 3.17.2-1 amd64 mbox format mailboxes handler for Claws Mail
ii claws-mail-multi-notifier:amd64 3.17.2-1 amd64 Various new mail notifiers for Claws Mail
ii claws-mail-pdf-viewer:amd64 3.17.2-1 amd64 PDF and PostScript attachment viewer for Claws Mail
ii claws-mail-pgpinline:amd64 3.17.2-1 amd64 PGP/inline plugin for Claws Mail
ii claws-mail-pgpmime:amd64 3.17.2-1 amd64 PGP/MIME plugin for Claws Mail
ii claws-mail-plugins 3.17.2-1 all Installs plugins for the Claws Mail mailer
ii claws-mail-smime-plugin:amd64 3.17.2-1 amd64 S/MIME signature/encryption handling for Claws Mail
ii claws-mail-spamassassin:amd64 3.17.2-1 amd64 SpamAssassin plugin for Claws Mail
ii claws-mail-themes 20140629+dfsg1-2 all Pixmap icon themes for the Claws Mail mailer
ii claws-mail-tools 3.17.2-1 all Helper and utility scripts for Claws Mail mailer
ii claws-mail-vcalendar-plugin:amd64 3.17.2-1 amd64 vCalendar message handling plugin for Claws Mail
~# LANG=C apt full-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@hhl:~#
No problems here, full upgraded system.