We have released VPOP3 v7.4 which you can download from http://www.pscs.co.uk/downloads/vpop3.php.
This is a free upgrade for all users who have active software maintenance or priority support on 5th July 2017. Other users can purchase the upgrade and 1 year of software maintenance on our website.
The only change in v7.4 is the fix for a bug which would prevent you creating new Autoresponders in VPOP3.
You can download a file to patch from v7.3 to v7.4 here:
(If you are not sure which version you have, you can easily use the full installer from the link at the top of this post)