Hi everyone! I'm new here :-)
I have an existing installation of 1.1.3 that was set up back in 2015. What's the best way to upgrade to the latest stable version (1.3.9)?
Thanks!
That is quite a big jump but I think the update script will handle it. You can find detailed instructions here https://github.com/roundcube/roundcubemail/blob/release-1.3/UPGRADING
Please remember to backup before you start.