[Koha] Koha 21.05.20 released

Hello! :-) The Koha Community is happy to announce the release of Koha 21.05.20 The full release notes can be found at: https://koha-community.org/koha-21-05-20-released/ Debian packages should be available shortly. Thanks to everyone involved :-) Cheers, -- Victor Grousset/tuxayo