To upgrade your per-server Roundcube (https://mail.customerdomain) to the latest version, run these commands as root:
This is advisable due to recent security issues in Roundcube prior to this version.
https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
su - roundcubelocal
wget https://github.com/roundcube/roundcubemail/releases/download/1.6.14/roundcubemail-1.6.14-complete.tar.gz
tar -xzf roundcubemail-1.6.14-complete.tar.gz
cd roundcubemail-1.6.14
./bin/installto.sh ../public_html
Your central Roundcube (if enabled) will have automatically updated.
