[Koha] Koha 3.18.4 released

The Koha release team are proud to announce the release of Koha 3.18.4. This release contains one security fix and users are recommended to upgrade to this release. You can either wait a day or 2 for the packages to be released, or you can download the tarball at http://download.koha-community.org Please read http://koha-community.org/koha-3-18-4-released/ for the release notes Chris